InTheHand

Provides methods for launching the built-in phone call UI.

PlatformVersion supported AndroidAndroid 4.4 and later macOSOS X 10.7 and later iOSiOS 9.0 and later TizenTizen 4.0 Windows UWPWindows 10 Windows StoreWindows 8.1 or later Windows Phone StoreWindows Phone 8.1 or later Windows Phone SilverlightWindows Phone 8.0 or later Windows (Desktop Apps)Windows 7 or later

Launches the built-in phone call UI with the specified phone number and display name.

A phone number. This should be in international format e.g. +12345678901 A display name.

Represents a chat message.

Creates a new instance of the class.

Gets or sets the body of the chat message.

Gets the list of recipients of the message.

Provides methods for managing chat messages.

PlatformVersion supported AndroidAndroid 4.4 and later macOSOS X 10.7 and later iOSiOS 9.0 and later Windows UWPWindows 10 Windows StoreWindows 8.1 or later Windows Phone StoreWindows Phone 8.1 or later Windows Phone SilverlightWindows Phone 8.0 or later Windows (Desktop Apps)Windows 7 or later

Shows the compose SMS dialog, pre-populated with data from the supplied ChatMessage object, allowing the user to send an SMS message.

The chat message. An asynchronous action.

Launches the device's SMS settings app.

Enables you to detect whether your app is in design mode in a visual designer.

PlatformVersion supported AndroidAndroid 4.4 and later Windows UWPWindows 10 Windows StoreWindows 8.1 or later Windows Phone StoreWindows Phone 8.1 or later Windows Phone SilverlightWindows Phone 8.0 or later Windows (Desktop Apps)Windows 7 or later

Gets a value that indicates whether the process is running in design mode.

True if the process is running in design mode; otherwise false. PlatformVersion supported AndroidAndroid 4.4 and later Windows UWPWindows 10 Windows StoreWindows 8.1 or later Windows Phone StoreWindows Phone 8.1 or later Windows Phone SilverlightWindows Phone 8.0 or later Windows (Desktop Apps)Windows 7 or later

Represents an email attachment.

PlatformVersion supported iOSiOS 9.0 and later Windows UWPWindows 10 Windows StoreWindows 8.1 or later Windows Phone StoreWindows Phone 8.1 or later Windows (Desktop Apps)Windows 7 or later

Creates an instance of the class with the specified data.

The filename of the attachment. The stream to use to download the attachment.

Initializes a new instance of the class.

The filename of the attachment. The stream to use to download the attachment. The MIME type of the attachment.

Gets or sets the email attachment's data.

Gets or sets the displayed file name for the email attachment.

The displayed file name for the email attachment.

Gets or sets the MIME type of the attachment.

The MIME type of the attachment.

Allows an application to launch the email application with a new message displayed. Use this to allow users to send email from your application.

Launches the email application with a new message displayed.

The email message that is displayed when the email application is launched. An asynchronous action used to indicate when the operation has completed.

Indicates the original sender of the message.

Indicates a primary recipient of the message.

Indicates the recipient of a copy of the message.

Indicates the recipient of a blind copy of the message.

Represents an email message.

Creates an instance of the class.

Gets or sets the subject of the email message.

Gets or sets the body of the email message.

Gets the direct recipients of the email message.

Gets the recipients CC'd to the email message.

Gets the recipients BCC'd to the email message.

Represents an email recipient.

Initializes an instance of the EmailRecipient class.

The address of the recipient.

Initializes an instance of the EmailRecipient class.

The address of the recipient. The name of the recipient.

Gets or sets the address of the email recipient.

Gets or sets the name of the email recipient.

Application Capabilities

The Appointments capability provides access to the user’s appointment store. This capability allows read access to appointments obtained from the synced network accounts and to other apps that write to the appointment store With this capability, your app can create new calendars and write appointments to calendars that it creates.

The Contacts capability provides access to the aggregated view of the contacts from various contacts stores. This capability gives the app limited access (network permitting rules apply) to contacts that were synced from various networks and the local contact store.

The MusicLibrary capability provides programmatic access to the user's Music, allowing the app to enumerate and access all files in the library without user interaction This capability is typically used in jukebox apps that need to access the entire Music library.

The PicturesLibrary capability provides programmatic access to the user's Pictures, allowing the app to enumerate and access all files in the library without user interaction. This capability is typically used in photo playback apps that need to access the entire Pictures library.

The VideosLibrary capability provides programmatic access to the user's Videos, allowing the app to enumerate and access all files in the library without user interaction. This capability is typically used in movie playback apps that need access to the entire Videos library.

Application requires network access.

Application requires the ability to make phone calls. Silverlight Only

Application requires access to push notifications. Silverlight Only

The RemovableStorage capability provides programmatic access to files on removable storage, such as USB keys and external hard drives, filtered to the file type associations declared in the package manifest. For example, if a DOC reader app declared a .doc file type association, it can open .doc files on the removable storage device, but not other types of files. Be careful when declaring this capability, because users may include a variety of info in their removable storage devices, and will expect the app to provide a valid justification for programmatic access to the removable storage for the entire file type.

Silverlight Only

The DocumentsLibrary capability provides programmatic access to the user's Documents, filtered to the file type associations declared in the package manifest, to support offline access to OneDrive. For example, if a DOC reader app declared a .doc file type association, it can open .doc files in Documents, but not other types of files.

Device capabilities allow your app to access peripheral and internal devices. Device capabilities are specified with the DeviceCapability element in your app package manifest. This element may require additional child elements and some device capabilities need to be added to the package manifest manually

The Location capability provides access to location functionality, which you get from dedicated hardware like a GPS sensor in the PC or is derived from available network info. Apps must handle the case where the user has disabled location services from settings.

The Microphone capability provides access to the microphone’s audio feed, which allows the app to record audio from connected microphones.

The Proximity capability enables multiple devices in close proximity to communicate with one another. This capability is typically used in casual multi-player games and in apps that exchange information. Devices attempt to use the communication technology that provides the best possible connection, including Bluetooth, WiFi, and the internet. This capability is used only to initiate communication between the devices.

The Camera capability provides access to the video feed of a built-in camera or external webcam, which allows the app to capture photos and videos. On Windows, apps must handle the case where the user has disabled the camera from the Settings charm.

The Usb device capability enables access to APIs in the Windows.Devices.Usb namespace. By using the namespace, you can write an app that talks to a custom USB device. "Custom" in this context means, a peripheral device for which Microsoft does not provide an in-box class driver.

The HumanInterfaceDevice device capability enables access to APIs in the Windows.Devices.HumanInterfaceDevice namespace. This namespace lets your app access devices that support the Human Interface Device (HID) protocol.

The bluetooth device capability enables access to APIs in the Windows.Devices.Bluetooth.GenericAttributeProfile and Windows.Devices.Bluetooth.Rfcomm namespaces.

The PointOfService device capability enables access to APIs in the Windows.Devices.PointOfService namespace. This namespace lets your Windows Store app access Point of Service (POS) barcode scanners and magnetic stripe readers. The namespace provides a vendor-neutral interface for accessing POS devices from various manufacturers from a Windows Store app.

Application requires access to the accelerometer. Silverlight Only

Gets and sets information from the clipboard object.

PlatformVersion supported AndroidAndroid 4.4 and later iOSiOS 9.0 and later macOSOS X 10.7 and later Windows UWPWindows 10 Windows StoreWindows 8.1 or later Windows Phone StoreWindows Phone 8.1 or later Windows Phone SilverlightWindows Phone 8.0 or later Windows (Desktop Apps)Windows 7 or later

Removes all data from the Clipboard.

Gets the current content that is stored in the clipboard object.

Contains the content of the Clipboard.

Sets the current content that is stored in the clipboard object.

Contains the content of the clipboard. If NULL, the clipboard is emptied.

Occurs when the data stored in the Clipboard changes.

Contains the data that a user wants to exchange with another app.

Constructor that creates a new .

Allows you to get and set properties like the title of the content being shared.

Returns a object. This object is a read-only copy of the object.

The object that is a read-only copy of the object.

Sets the data contained in the DataPackage.

Specifies the format of the data. We recommend that you set this value by using the StandardDataFormats class. Specifies the content that the DataPackage contains.

Sets a delegate to handle requests from the target app.

Specifies the format of the data. We recommend that you set this value by using the StandardDataFormats class. A delegate that is responsible for processing requests from a target app.

Sets the text that a contains.

The text.

Sets the web link that a contains.

A URI with an http or https scheme that corresponds to the content being displayed to the user. Whenever possible, you should set this property. A source app provides a value for this property, and a target app reads the value. Use this property to indicate the source of the shared content.

Sets the application link that a contains.

A URI with a scheme that isn't http or https that's handled by the source app. Whenever possible, you should set this property. This URI represents a deep link that takes the user back to the currently displayed content. A source app provides a value for this property, and a target app reads the value. Use this property to indicate the source of the shared content. The scheme of this URI must not be http or https. The app sharing this URI must be capable of being the default handler, although it may not be set as the default handler.

Defines a set of properties to use with a object.

Gets or sets the text that displays as a title for the contents of the object.

Gets or sets text that describes the contents of the .

We recommend adding a description to a DataPackage object if you can. Target apps can use this description to help users identify what content they're sharing.

Gets the set of properties of a object.

Gets the text that displays as a title for the contents of the object.

Gets the text that describes the contents of the .

A read-only version of a . Apps that receive shared content get this object when acquiring content.

Returns the formats the contains.

Gets a object, which contains a read-only set of properties for the data in the object.

Checks to see if the contains a specific data format.

The name of the format. True if the contains the format; false otherwise.

Gets the data contained in the .

The format of the data. The data.

Gets the text in the object.

Gets the application link in the object.

Gets the web link in the object.

An object of this type is passed to the delegate.

Specifies the format id.

Sets the content of the DataPackage to be shared with a target app.

The object associated with a particular format in the DataPackage.

Provides data when the target app requests it, instead of including the data in the DataPackage ahead of time. DataProviderHandler is used when the source app wants to avoid unnecessary work that is resource intensive, such as performing format conversions.

Contains the data that the user wants to share.

Contains static properties that return string values. Each string corresponds to a known format ID. Use this class to avoid errors in using string constants to specify data formats.

A read-only property that returns the format ID string value corresponding to the Text format.

A read-only property that returns the format ID string value corresponding to the Uniform Resource Identifier (URI) format.

Provides information about a package.

PlatformVersion supported AndroidAndroid 4.4 and later iOSiOS 9.0 and later macOSOS X 10.7 and later tvOStvOS 9.0 and later watchOSwatchOS 2.0 and later TizenTizen 3.0 Windows UWPWindows 10 Windows StoreWindows 8.1 or later Windows Phone StoreWindows Phone 8.1 or later Windows Phone SilverlightWindows Phone 8.0 or later Windows (Desktop Apps)Windows 7 or later

Gets the package for the current app.

Gets the description of the package.

Gets the display name of the package.

Gets the package identity of the current package.

The package identity.

Gets the date the application package was installed on the user's phone.

Gets the location of the installed package.

This folder is read-only except for Windows Desktop applications.

Indicates whether the package is installed in development mode.

A Boolean value that indicates whether the package is installed in development mode. TRUE indicates that the package is installed in development mode; otherwise FALSE.

Gets the logo of the package.

Gets the publisher display name of the package.

Android and iOS don't provide a way to query the publisher at runtime.

Provides package identification info, such as name, version, and publisher.

Gets the processor architecture for which the package was created.

Gets the name of the package.

The package name.

Gets the name of the package.

The package name.

Gets the value of the ProductID attribute associated with this application package.

The value of the ProductID attribute associated with this application package.

Gets the publisher of the package.

Not supported on iOS or Android.

Gets the package version info.

The package version information.

Provides utility methods for use with HTML-formatted data.

PlatformVersion supported AndroidAndroid 4.4 and later iOSiOS 9.0 and later macOSOS X 10.7 and later tvOStvOS 9.0 and later Windows UWPWindows 10 Windows StoreWindows 8.1 or later Windows Phone StoreWindows Phone 8.1 or later Windows Phone SilverlightWindows Phone 8.0 or later Windows (Desktop Apps)Windows 7 or later

Converts HTML-formatted data to a string that contains the text content extracted from the HTML.

A String containing HTML-formatted data. A String of text content.

Supports the ability to determine the capabilities of any connected hardware keyboards.

PlatformVersion supported AndroidAndroid 4.4 and later macOSOS X 10.7 and later watchOSwatchOS 2.0 and later TizenTizen 3.0 Windows UWPWindows 10 Windows StoreWindows 8.1 or later Windows Phone StoreWindows Phone 8.1 or later Windows Phone SilverlightWindows Phone 8.0 or later Windows (Desktop Apps)Windows 8 or later

Initializes a new instance of the class.

Gets a value that indicates whether a device identifying itself as a keyboard is detected.

Returns 1 if a device identifying itself as a keyboard is detected. Otherwise, returns 0.

The basic information to describe a geographic position.

PlatformVersion supported iOSiOS 9.0 and later macOSOS X 10.7 and later tvOStvOS 9.0 and later TizenTizen 3.0 Windows UWPWindows 10 Windows StoreWindows 8.1 or later Windows Phone StoreWindows Phone 8.1 or later Windows Phone SilverlightWindows Phone 8.0 or later

The altitude of the geographic position in meters.

The latitude of the geographic position. The valid range of latitude values is from -90.0 to 90.0 degrees.

The longitude of the geographic position. This can be any value. For values less than or equal to-180.0 or values greater than 180.0, the value may be wrapped and stored appropriately before it is used. For example, a longitude of 183.0 degrees would become -177.0 degrees.

Provides extension methods for .

Returns the distance between the latitude and longitude coordinates that are specified by this and another specified .

The for the location to calculate the distance to. The distance between the two coordinates, in meters.

Interface to define a geographic shape.

PlatformVersion supported iOSiOS 9.0 and later macOSOS X 10.7 and later TizenTizen 3.0 Windows UWPWindows 10 Windows StoreWindows 8.1 or later Windows Phone StoreWindows Phone 8.1 or later Windows Phone SilverlightWindows Phone 8.0 or later

The type of geographic shape.

Indicates the shape of a geographic region.

The geographic region is a circle with a center point and a radius.

Describes a geographic circle with a center point and a radius.

Create a geographic circle object for the given position and radius.

The center point of a geographic circle.

The type of geographic shape.

The radius of a geographic circle in meters.

Contains the information for identifying a geographic location.

The accuracy of the location in meters.

The accuracy in meters. The Windows Location Provider and the Windows Phone Location Services accuracy depends on the location data available. For example,iIf Wifi is available, data is accurate to within 50 meters. If Wifi is not available, the data could be accurate to within 10 miles or larger. A GNSS device can provide data accurate to within a few meters. However, its accuracy can vary if the GNSS sensor is obscured by buildings, trees, or cloud cover. GNSS data may not be available at all within a building.

The accuracy of the altitude, in meters.

The accuracy of the altitude. It is optional for a location provider to set this property. If the property is not provided, the value will be NULL. The Windows Location Provider and the Windows Phone Location Services do not set this property.

The current heading in degrees relative to true north.

The current heading in degrees relative to true north. It is optional for a location provider to set this property. If the property is not provided, the value will be NULL. The Windows Location Provider does not set this property.

The location of the Geocoordinate.

Gets the source used to obtain a Geocoordinate.

The source used to obtain a Geocoordinate.

Gets the time at which the associated Geocoordinate position was calculated.

The time at which the associated Geocoordinate position was calculated. When this property is not available, the value will be null. The timestamp returned by this property depends on how the location was obtained and may be completely unrelated to the system time on the device. For example, if the position is obtained from the Global Navigation Satellite System (GNSS) the timestamp would be obtained from the satellites. If the position was is obtained from Secure User Plane Location (SUPL), the timestamp would be obtained from SUPL servers. This means that the timestamps obtained from these services will be precise and, most importantly, consistent across all devices regardless of whether the system time on the devices is set correctly.

The speed in meters per second.

The speed in meters per second. It is optional for a location provider to set this property. If the property is not provided, the value will be NULL. The Windows Location Provider does not set this property.

The system time at which the location was determined.

Provides extension methods for .

Returns the distance between the latitude and longitude coordinates that are specified by this and another specified .

The for the location to calculate the distance to. The distance between the two coordinates, in meters.

Provides access to the current geographic location.

Initializes a new Geolocator object.

The accuracy level at which the Geolocator provides location updates.

The status that indicates the ability of the Geolocator to provide location updates.

Gets and sets the distance of movement, in meters, relative to the coordinate from the last PositionChanged event, that is required for the Geolocator to raise a PositionChanged event.

The requested minimum time interval between location updates, in milliseconds. If your application requires updates infrequently, set this value so that you only receive location updates when needed.

Starts an asynchronous operation to retrieve the current location of the device.

Raised when the ability of the Geolocator to provide updated location changes.

Raised when the location is updated.

Describes a geographic point.

Create a geographic point object for the given position.

The position of a geographic point.

Represents a location that may contain latitude and longitude data or venue data.

The latitude and longitude associated with a geographic location.

Indicates the requested accuracy level for the location data that the application uses.

Optimize for power, performance, and other cost considerations.

Deliver the most accurate report possible. This includes using services that might charge money, or consuming higher levels of battery power or connection bandwidth. An accuracy level of High may degrade system performance and should be used only when necessary.

Provides data for the event.

The location data associated with the event.

Indicates the source used to obtain a .

The position was obtained from cellular network data.

The position was obtained from satellite data.

The position was obtained from Wi-Fi network data.

The position was obtained from an IP address.

The position was obtained from an unknown source.

The position was obtained from the user's manually-set location.

The position was obtained via the Consentless Location feature and was therefore intentionally made inaccurate to a degree.

Indicates the ability of the object to provide location data.

Location data is available.

Location services is initializing. This is the status if a GPS is the source of location data and the GPS receiver does not yet have the required number of satellites in view to obtain an accurate position.

No location data is available from any source.

Location settings are turned off. This status indicates that the user has not granted the application permission to access location.

An operation to retrieve location has not yet been initialized. LocationStatus will have this value if the application has not yet called or registered an event handler for the event. LocationStatus may also have this value if your app doesn’t have permission to access location.

Location services is not available on this version of Windows.

Provides information for the event.

The updated status of the object.

Monitors and controls physical display information. The class provides events to allow clients to monitor for changes in the display.

PlatformVersion supported AndroidAndroid 4.4 and later iOSiOS 9.0 and later macOSOS X 10.7 and later tvOStvOS 9.0 and later TizenTizen 3.0 Windows UWPWindows 10 Windows StoreWindows 8.1 or later Windows Phone StoreWindows Phone 8.1 or later Windows Phone SilverlightWindows Phone 8.0 or later Windows (Desktop Apps)Windows 7 or later

Gets the current physical display information.

Gets the current orientation of a rectangular monitor.

PlatformVersion supported AndroidAndroid 4.4 and later iOSiOS 9.0 and later tvOStvOS 9.0 and later TizenTizen 3.0 Windows UWPWindows 10 Windows StoreWindows 8.1 or later Windows Phone StoreWindows Phone 8.1 or later Windows Phone SilverlightWindows Phone 8.0 or later Windows (Desktop Apps)Windows 7 or later

Gets the raw dots per inch (DPI) along the x axis of the display monitor.

PlatformVersion supported AndroidAndroid 4.4 and later iOSiOS 9.0 and later tvOStvOS 9.0 and later Windows UWPWindows 10 Windows StoreWindows 8.1 or later Windows Phone StoreWindows Phone 8.1 or later Windows Phone SilverlightWindows Phone 8.0 or later Windows (Desktop Apps)Windows 7 or later

Gets the raw dots per inch (DPI) along the y axis of the display monitor.

Gets a value representing the number of raw (physical) pixels for each view (layout) pixel.

Horizontal size in millimeters

Vertical size in millimeters

Horizontal width in pixels

Vertical height in pixels

Describes the orientation of a rectangular monitor.

No display orientation is specified.

Specifies that the monitor is oriented in landscape mode where the width of the display viewing area is greater than the height.

Specifies that the monitor rotated 90 degrees in the clockwise direction to orient the display in portrait mode where the height of the display viewing area is greater than the width.

Specifies that the monitor rotated another 90 degrees in the clockwise direction (to equal 180 degrees) to orient the display in landscape mode where the width of the display viewing area is greater than the height. This landscape mode is flipped 180 degrees from the Landscape mode.

Specifies that the monitor rotated another 90 degrees in the clockwise direction (to equal 270 degrees) to orient the display in portrait mode where the height of the display viewing area is greater than the width. This portrait mode is flipped 180 degrees from the Portrait mode.

Provides additional Math operations.

PlatformVersion supported AndroidAndroid 4.4 and later iOSiOS 9.0 and later macOSOS X 10.7 and later TizenTizen 3.0 tvOStvOS 9.0 and later watchOSwatchOS 2.0 and later Windows UWPWindows 10 Windows StoreWindows 8.1 or later Windows Phone StoreWindows Phone 8.1 or later Windows Phone SilverlightWindows Phone 8.0 or later Windows (Desktop Apps)Windows 7 or later

Restricts a value to be within a specified range.

The value to clamp. The minimum value. If value is less than min, min will be returned. The maximum value. If value is greater than max, max will be returned.

Represents a network connection, which includes either the currently connected network or prior network connections.

Gets the network connectivity level for this connection. This value indicates what network resources, if any, are currently available.

Defines the level of connectivity currently available.

No connectivity.

Local network access only.

Limited internet access. This value indicates captive portal connectivity, where local access to a web portal is provided, but access to the Internet requires that specific credentials are provided via the portal. This level of connectivity is generally encountered when using connections hosted in public locations (e.g. coffee shops and book stores). Note This doesn't guarantee detection of a captive portal. Windows Store apps should also test if the captive portal can be reached using a URL for the captive portal, or by attempting access to a public web site which will then redirect to the captive portal when Windows reports LocalAccess as the current NetworkConnectivityLevel.

Local and Internet access.

Provides access to network connection information for the local machine.

Gets the connection profile associated with the internet connection currently used by the local machine.

The profile for the connection currently used to connect the machine to the Internet, or null if there is no connection profile with a suitable connection.

Occurs when the network status changes for a connection.

Represents the method that handles network status change notifications. This method is called when any properties exposed by the object changes while the app is active.

Specifies options for creating application data containers or returning existing containers. This enumeration is used by the method.

Always returns the specified container. Creates the container if it does not exist.

Returns the specified container only if it already exists. Raises an exception of type System.Exception if the specified container does not exist.

Describes the purpose of the thumbnail to determine how to adjust the thumbnail image to retrieve.

To display previews of picture or video files.

To display previews of files (or other items) in a list.

To display a preview of any single item (like a file, folder, or file group).

Provides access to the basic properties, like the size of the item or the date the item was last modified, of the item (like a file or folder).

Gets the timestamp of the last time the file was modified.

Gets the size of the file in bytes.

Manipulates folders and their contents, and provides information about them.

Creates a new file in the current folder.

The desired name of the file to create.

Creates a new file in the current folder, and specifies what to do if a file with the same name already exists in the current folder.

The desired name of the file to create. The enum value that determines what to do if the desiredName is the same as the name of an existing file in the current folder.

Creates a new folder in the current folder.

The desired name of the folder to create.

Creates a new folder in the current folder, and specifies what to do if a folder with the same name already exists in the current folder.

The desired name of the folder to create. The enum value that determines what to do if the desiredName is the same as the name of an existing folder in the current folder.

Gets the specified file from the current folder.

The name (or path relative to the current folder) of the file to retrieve.

Gets the files from the current folder.

Gets the specified folder from the current folder.

The name of the child folder to retrieve.

Gets the folders in the current folder.

Gets the specified item from the .

The name of the item to retrieve.

Gets the items from the current folder.

Try to get a single file or sub-folder from the current folder by using the name of the item.

The name (or path relative to the current folder) of the file or sub-folder to try to retrieve. When this method completes successfully, it returns the file or folder (type ).

Provides access to common locations that contain user content. This includes content from a user's local libraries (such as Documents, Pictures, Music, and Videos).

Gets the Camera Roll folder.

PlatformVersion supported AndroidAndroid 4.4 and later TizenTizen 3.0 Windows UWPWindows 10 Windows StoreWindows 8.1 or later Windows Phone StoreWindows Phone 8.1 or later Windows Phone SilverlightWindows Phone 8.0 or later Windows (Desktop Apps)Windows 8.1 or later

Gets the Documents library.

Gets the Music library.

Gets the Pictures library.

Gets the Videos library.

Represents a UI element that lets the user choose and open files.

PlatformVersion supported Windows UWPWindows 10 Windows StoreWindows 8.1 or later Windows Phone StoreWindows 10 Mobile or later Windows (Desktop Apps)Windows 7 or later

Shows the file picker so that the user can pick one file.

When the call to this method completes successfully, it returns a object that represents the file that the user picked.

Gets the collection of file types that the file open picker displays.

Represents a file picker that lets the user choose the file name, extension, and storage location for a file.

PlatformVersion supported Windows UWPWindows 10 Windows StoreWindows 8.1 or later Windows (Desktop Apps)Windows 7 or later

Shows the file picker so that the user can save a file and set the file name, extension, and location of the file to be saved.

When the call to this method completes successfully, it returns a storageFile object that was created to represent the saved file. The file name, extension, and location of this storageFile match those specified by the user, but the file has no content.

Gets or sets the default file name extension that the gives to files to be saved.

Gets the collection of valid file types that the user can choose to assign to a file.

Represents a UI element that lets the user choose folders.

PlatformVersion supported Windows UWPWindows 10 Windows StoreWindows 8.1 or later Windows (Desktop Apps)Windows 7 or later

Shows the folderPicker object so that the user can pick a folder.

When the call to this method completes successfully, it returns a object that represents the folder that the user picked.

Provides access to the application data store. Application data consists of settings that are local.

Provides access to the app data store associated with the app's app package.

Removes all application data from the local, roaming, and temporary app data stores.

Removes all application data from the specified app data store.

One of the enumeration values.

Gets the root folder in the local app data store.

Gets the application settings container in the local app data store.

The application settings container.

Gets the root folder in the roaming app data store.

Gets the application settings container in the local app data store.

The application settings container.

Gets the root folder in the temporary app data store.

Represents a container for app settings. The methods and properties of this class support creating, deleting, enumerating, and traversing the container hierarchy.

PlatformVersion supported AndroidAndroid 4.4 and later iOSiOS 9.0 and later tvOStvOS 9.0 and later TizenTizen 3.0 watchOSwatchOS 2.0 and later Windows UWPWindows 10 Windows StoreWindows 8.1 or later Windows Phone StoreWindows Phone 8.1 or later Windows Phone SilverlightWindows Phone 8.0 or later Windows (Desktop Apps)Windows 7 or later

Creates or opens the specified settings container in the current settings container.

The name of the container. One of the enumeration values. On iOS the name must be a value Shared App Group name and disposition must be Existing. The settings container.

Gets the type (local or roaming) of the app data store that is associated with the current settings container.

Gets the name of the current settings container.

Gets an object that represents the settings in this settings container.

The settings map object.

Provides access to the settings in a settings container.

PlatformVersion supported AndroidAndroid 4.4 and later iOSiOS 9.0 and later tvOStvOS 9.0 and later watchOSwatchOS 2.0 and later TizenTizen 3.0 Windows UWPWindows 10 Windows StoreWindows 8.1 or later Windows Phone StoreWindows Phone 8.1 or later Windows Phone SilverlightWindows Phone 8.0 or later

Occurs when the map changes.

Adds an item to the .

The key of the item to add. The item value to add.

Returns a value that indicates whether a specified key exists in the .

The key to check for in the . true if an item with that key exists in the ; otherwise, false.

Gets an ICollection object containing the keys of the .

Removes a specific item from the .

The key of the item to remove. true if the item was removed, otherwise false.

Returns a value that indicates whether a specified key exists in the . If an item with that key exists, the item is retrieved as an out parameter.

The key to check for in the . The item, if it exists. Contains null if the item does not exist in the . true if an item with that key exists in the ; otherwise, false.

Gets an object containing the values of the .

Gets or sets the element value at the specified key index.

The element value at the specified key index.

Adds a new key-value pair to the ApplicationDataContainerSettings.

The key-value pair to add.

Removes all related application settings.

Returns a value that indicates whether a specified key-value pair exists in the ApplicationDataContainerSettings.

The key-value pair to check for in the ApplicationDataContainerSettings.

Copies the elements of the collection to an array, starting at a particular array index.

The one-dimensional Array that is the destination of the elements copied from the collection. The Array must have zero-based indexing. The zero-based index in array at which copying begins.

Gets the number of elements contained in the collection.

Gets a value indicating whether the dictionary is read-only.

true if the dictionary is read-only; otherwise, false.

Removes a specific key-value pair from the .

The key-value pair to remove. true if the item was removed, otherwise false.

Provides access to the application data store. Application data consists of settings that are local.

The data resides in the local application data store.

The data resides in the roaming application data store.

The data resides in the temporary application data store.

The data resides in the local cache for the application data store.

The data resides in the shared application data store.

Represents a file. Provides information about the file and its content, and ways to manipulate them.

Automatically append a number to the base of the specified name if the file or folder already exists. For example, if MyFile.txt already exists, then the new file is named MyFile(2).txt. If MyFolder already exists, then the new folder is named MyFolder(2).

Replace the existing item if the file or folder already exists.

Raise an exception of type System.Exception if the file or folder already exists. Methods that don't explicitly pass a value from the CreationCollisionOption enumeration use the FailIfExists value as the default when you try to create, rename, copy, or move a file or folder.

Return the existing item if the file or folder already exists.

Describes the attributes of a file or folder.

The item is normal. That is, the item doesn't have any of the other values in the enumeration.

The item is read-only.

The item is a directory.

The item is archived.

The item is a temporary file.

Provides helper methods for reading and writing files that are represented by objects of type .

Appends lines of text to the specified file.

The file that the lines are appended to. The list of text strings to append as lines. No object or value is returned when this method completes.

Appends lines of text to the specified file using the specified character encoding.

The file that the lines are appended to. The list of text strings to append as lines. The character encoding of the file. No object or value is returned when this method completes.

Appends text to the specified file.

The file that the text is appended to. The text to append. No object or value is returned when this method completes.

Appends text to the specified file using the specified character encoding.

The file that the text is appended to. The text to append. The character encoding of the file. No object or value is returned when this method completes.

Reads the contents of the specified file and returns lines of text.

The file to read. When this method completes successfully, it returns the contents of the file as a list (type IVector) of lines of text. Each line of text in the list is represented by a String object.

Reads the contents of the specified file using the specified character encoding and returns lines of text.

The file to read. The character encoding of the file. When this method completes successfully, it returns the contents of the file as a list (type IVector) of lines of text. Each line of text in the list is represented by a String object.

Reads the contents of the specified file and returns text.

The file to read. When this method completes successfully, it returns the contents of the file as a text string.

Reads the contents of the specified file using the specified character encoding and returns text.

The file to read. The character encoding of the file. When this method completes successfully, it returns the contents of the file as a text string.

Writes lines of text to the specified file.

The file that the lines are written to. The list of text strings to append as lines. No object or value is returned when this method completes.

Writes lines of text to the specified file using the specified character encoding.

The file that the lines are written to. The list of text strings to append as lines. The character encoding of the file. No object or value is returned when this method completes.

Writes text to the specified file.

The file that the text is written to. The text to write. No object or value is returned when this method completes.

Writes text to the specified file using the specified character encoding.

The file that the text is written to. The text to write. The character encoding of the file. No object or value is returned when this method completes.

Represents a file. Provides information about the file and its contents, and ways to manipulate them.

Replaces the specified file with a copy of the current file.

The file to replace. No object or value is returned when this method completes.

Creates a copy of the file in the specified folder.

Creates a copy of the file in the specified folder, using the desired name.

Moves the current file to the location of the specified file and replaces the specified file in that location.

Moves the current file to the specified folder.

Moves the current file to the specified folder and renames the file according to the desired name.

Gets the MIME type of the contents of the file.

The MIME type of the file contents. For example, a music file might have the "audio/mpeg" MIME type.

Gets the type (file name extension) of the file.

Manipulates storage items (files and folders) and their contents, and provides information about them.

Deletes the current item.

Deletes the current item, optionally deleting it permanently.

Gets the basic properties of the current item (like a file or folder).

Determines whether the current IStorageItem matches the specified StorageItemTypes value.

The value to match against.

Gets the attributes of a storage item.

Gets the date and time when the current item was created.

Gets the name of the item including the file name extension if there is one.

Gets the full file-system path of the item, if the item has a path.

Gets the parent folder of the current storage item.

Indicates whether the current item is the same as the specified item.

The object that represents a storage item to compare against. Returns true if the current storage item is the same as the specified storage item; otherwise false.

Specifies what to do if a file or folder with the specified name already exists in the current folder when you copy, move, or rename a file or folder.

Replace the existing item if the file or folder already exists.

Raise an exception of type System.Exception if the file or folder already exists. Methods that don't explicitly pass a value from the NameCollisionOption enumeration use the FailIfExists value as the default when you try to create, rename, copy, or move a file or folder.

Provides helper methods for reading and writing a file using the absolute path or URI of the file.

Appends lines of text to the file at the specified path or URI.

The path or URI of the file that the lines are appended to. The list of text strings to append as lines. No object or value is returned when this method completes.

Appends lines of text to the file at the specified path or URI using the specified character encoding.

The path or URI of the file that the lines are appended to. The list of text strings to append as lines. The character encoding of the file. No object or value is returned when this method completes.

Appends text to the file at the specified path or URI.

The path of the file that the text is appended to. The text to append. No object or value is returned when this method completes.

Appends text to the file at the specified path or URI using the specified character encoding.

The path of the file that the text is appended to. The text to append. The character encoding of the file. No object or value is returned when this method completes.

Reads the contents of the file at the specified path or URI and returns lines of text.

The path of the file to read. When this method completes successfully, it returns the contents of the file as a list (type IVector) of lines of text. Each line of text in the list is represented by a String object.

Reads the contents of the file at the specified path or URI using the specified character encoding and returns lines of text.

The path of the file to read. The character encoding of the file. When this method completes successfully, it returns the contents of the file as a list (type IVector) of lines of text. Each line of text in the list is represented by a String object.

Reads the contents of the file at the specified path or URI and returns text.

The path of the file to read. When this method completes successfully, it returns the contents of the file as a text string.

Reads the contents of the file at the specified path or URI using the specified character encoding and returns text.

The path of the file to read. The character encoding of the file. When this method completes successfully, it returns the contents of the file as a text string.

Writes lines of text to the file at the specified path or URI.

The path of the file that the lines are written to. The list of text strings to append as lines. No object or value is returned when this method completes.

Writes lines of text to the file at the specified path or URI using the specified character encoding.

The path of the file that the lines are written to. The list of text strings to append as lines. The character encoding of the file. No object or value is returned when this method completes.

Writes text to the file at the specified path or URI.

The path of the file that the text is written to. The text to write. No object or value is returned when this method completes.

Writes text to the file at the specified path or URI using the specified character encoding.

The path of the file that the text is written to. The text to write. The character encoding of the file. No object or value is returned when this method completes.

Specifies whether a deleted item is moved to the Recycle Bin or permanently deleted.

Specifies the default behavior.

Permanently deletes the item. The item is not moved to the Recycle Bin.

Represents a file. Provides information about the file and its content, and ways to manipulate them.

Gets a StorageFile object to represent the file at the specified path.

The path of the file to get a StorageFile to represent. If your path uses slashes, make sure you use backslashes(\). Forward slashes(/) are not accepted by this method. When this method completes, it returns the file as a StorageFile.

Replaces the specified file with a copy of the current file.

Creates a copy of the file in the specified folder.

The destination folder where the copy of the file is created.

Creates a copy of the file in the specified folder and renames the copy.

The destination folder where the copy of the file is created. The new name for the copy of the file created in the destinationFolder.

Deletes the current file.

Deletes the current file, optionally deleting the item permanently.

Gets the basic properties of the current file.

Retrieves an adjusted thumbnail image for the file, determined by the purpose of the thumbnail.

The enum value that describes the purpose of the thumbnail and determines how the thumbnail image is adjusted. When this method completes successfully, it returns a that represents the thumbnail image or null if there is no thumbnail image associated with the file.

Gets the parent folder of the current file.

Moves the current file to the specified folder and renames the file according to the desired name.

The destination folder where the file is moved.

Moves the current file to the specified folder and renames the file according to the desired name.

The destination folder where the file is moved. The desired name of the file after it is moved.

Moves the current file to the location of the specified file and replaces the specified file in that location.

The file to replace. No object or value is returned by this method.

Renames the current file.

The desired, new name of the current item. No object or value is returned by this method when it completes.

Renames the current file. This method also specifies what to do if an existing item in the current file's location has the same name.

The desired, new name of the current file. If there is an existing item in the current file's location that already has the specified desiredName, the specified determines how the system responds to the conflict. The enum value that determines how the system responds if the desiredName is the same as the name of an existing item in the current file's location. No object or value is returned by this method when it completes.

Gets the attributes of a file.

Gets the date and time when the current file was created.

Gets the MIME type of the contents of the file.

PlatformVersion supported iOSiOS 9.0 and later tvOStvOS 9.0 and later TizenTizen 3.0 Windows UWPWindows 10 Windows StoreWindows 8.1 or later Windows Phone StoreWindows Phone 8.1 or later Windows Phone SilverlightWindows Phone 8.0 or later

Gets the type (file name extension) of the file.

Gets the name of the file including the file name extension.

Gets the full file-system path of the current file, if the file has a path.

Indicates whether the current file is equal to the specified file.

The object that represents a file to compare against. Returns true if the current file is equal to the specified file; otherwise false.

Determines whether the current matches the specified value.

The value to match against. True if the matches the specified value; otherwise false.

Manages folders and their contents and provides information about them.

Gets a StorageFile object to represent the file at the specified path.

Creates a new file with the specified name in the current folder.

The name of the new file to create in the current folder. When this method completes, it returns a StorageFile that represents the new file.

Creates a new file with the specified name in the current folder.

The name of the new file to create in the current folder. One of the enumeration values that determines how to handle the collision if a file with the specified desiredName already exists in the current folder. When this method completes, it returns a StorageFile that represents the new file.

Creates a new subfolder with the specified name in the current folder.

The name of the new subfolder to create in the current folder. When this method completes, it returns a StorageFolder that represents the new subfolder.

Creates a new subfolder with the specified name in the current folder. This method also specifies what to do if a subfolder with the same name already exists in the current folder.

The name of the new subfolder to create in the current folder. One of the enumeration values that determines how to handle the collision if a subfolder with the specified desiredName already exists in the current folder. When this method completes, it returns a StorageFolder that represents the new subfolder.

Deletes the current folder.

Deletes the current folder. This method also specifies whether to delete the folder permanently.

Gets the basic properties of the current folder.

Gets the file with the specified name from the current folder.

Gets the files in the current folder.

Gets the specified folder from the current folder.

The name of the child folder to retrieve. When this method completes successfully, it returns a StorageFolder that represents the child folder.

Gets the folders in the current folder.

Gets the file or folder with the specified name from the current folder.

The name (or path relative to the current folder) of the file or folder to get.

Gets the items in the current folder.

Gets the parent folder of the current folder.

When this method completes, it returns the parent folder as a .

Tries to get the file or folder with the specified name from the current folder. Returns null instead of raising a FileNotFoundException if the specified file or folder is not found.

The name (or path relative to the current folder) of the file or folder to get. When this method completes successfully, it returns an IStorageItem that represents the specified file or folder. If the specified file or folder is not found, this method returns null instead of raising an exception.

Gets the attributes of the current folder.

Gets the date and time that the current folder was created.

Gets the name of the current folder.

Gets the full path of the current folder in the file system, if the path is available.

Indicates whether the current folder is equal to the specified folder.

The object that represents the folder to compare against. Returns true if the current folder is equal to the specified folder; otherwise false.

Indicates whether the current matches the specified value.

The enum value that determines the object type to match against. True if the matches the specified value; otherwise false.

Provides additional methods for .

Deletes all contents of a folder without deleting the folder itself.

Returns the size, in bytes, of the folder and all of its contents.

The folder to measure The size, in bytes, of the folder and all of its contents.

Describes whether an item that implements the interface is a file or a folder.

A storage item that is neither a file nor a folder.

A file that is represented as a instance.

A folder that is represented as a instance.

Specifies the type of character encoding for a stream.

The encoding is UTF-8.

The encoding is UTF-16, with the least significant byte first in the two eight-bit bytes.

The encoding is UTF-16, with the most significant byte first in the two eight-bit bytes.

Represents a display request.

To conserve power and extend battery life, the system reduces power to the computer if it does not detect any user activity for a certain amount of time. Depending on system power settings, the display may first be dimmed, a screen saver may be displayed, and eventually the display may be turned off as the system enters a low-power sleep state. PlatformVersion supported AndroidAndroid 4.4 and later iOSiOS 9.0 and later tvOStvOS 9.0 and later Windows UWPWindows 10 Windows StoreWindows 8.1 or later Windows Phone StoreWindows Phone 8.1 or later Windows Phone SilverlightWindows Phone 8.0 or later Windows (Desktop Apps)Windows 7 or later

Activates a display request.

Deactivates a display request.

Informs the system that the state being set should remain in effect until the next call that uses ES_CONTINUOUS and one of the other state flags is cleared.

Forces the display to be on by resetting the display idle timer.

Specifies whether an app is available that supports activation

PlatformVersion supported Android- iOSiOS 9.0 and later tvOStvOS 9.0 and later Windows UWPWindows 10 Windows Store- Windows Phone Store- Windows Phone Silverlight- Windows (Desktop Apps)-

An app that handles the activation is available and may be activated.

No app is installed to handle the activation.

An app that handles the activation is installed but not available because it is being updated by the store or it was installed on a removable device that is not available.

The app does not handle the activation.

An unknown error was encountered while determining whether an app supports the activation.

Specifies the type of activation to query for.

PlatformVersion supported Android- iOS- tvOStvOS 9.0 and later Windows UWPWindows 10 Windows Store- Windows Phone Store- Windows Phone Silverlight- Windows (Desktop Apps)-

Activate by URI but do not return a result to the calling app. This is the default.

Activate by URI and return a result to the calling app.

Indicates the status of the battery.

The battery or battery controller is not present.

The battery is discharging.

The battery is idle.

The battery is charging.

Specifies the status of battery saver.

Battery saver is off permanently or the device is plugged in.

Battery saver is off now, but ready to turn on automatically.

Battery saver is on. Save energy where possible.

Represents the device's power supply status.

An Inadequate status occurs when the power supply is present, but the charge rate is negative. For example, the device is plugged in, but it’s losing charge.

The device has no power supply.

The device has an inadequate power supply.

The device has an adequate power supply.

Provides information about the status of the device's battery.

PlatformVersion supported AndroidAndroid 4.4 and later iOSiOS 9.0 and later TizenTizen 3.0 Windows UWPWindows 10 Windows StoreWindows 10 or later Windows Phone StoreWindows Phone 8.1 or later Windows Phone SilverlightWindows Phone 8.0 or later Windows (Desktop Apps)Windows 7 or later

Gets the device's battery status.

The device's battery status.

Gets battery saver status, indicating when to save energy.

Gets the device's power supply status.

Gets the total percentage of charge remaining from all batteries connected to the device. Not supported for Windows 8.1 apps deployed via the public Windows Store.

The total percentage of charge remaining from all batteries connected to the device.

Occurs when changes.

PlatformVersion supported iOSiOS 9.0 and later TizenTizen 3.0 Windows UWPWindows 10 Windows Phone StoreWindows Phone 8.1 or later Windows Phone SilverlightWindows Phone 8.0 or later

Gets a value that estimates how long is left until the device's battery is fully discharged. Not supported for apps deployed on Windows 8.1 from the public Windows Store.

High—the battery capacity is at more than 66 percent

Low—the battery capacity is at less than 33 percent

Critical—the battery capacity is at less than five percent

Charging

No system battery

Unknown status—unable to read the battery flag information

Starts the default app associated with the specified file or URI.

Starts the app associated with the specified file.

The file. The launch operation. PlatformVersion supported AndroidAndroid 4.4 and later iOSiOS 9.0 and later macOSOS X 10.7 and later Windows UWPWindows 10 Windows StoreWindows 8.1 or later Windows Phone StoreWindows Phone 8.1 or later Windows Phone SilverlightWindows Phone 8.0 or later Windows (Desktop Apps)Windows 7 or later

Launches File Explorer and displays the contents of the specified folder.

The folder to display in File Explorer. The result of the operation. PlatformVersion supported macOSOS X 10.7 and later Windows UWPWindows 10 Windows (Desktop Apps)Windows 7 or later

Starts the default app associated with the URI scheme name for the specified URI.

The URI. Ignored on Android and iOS. The launch operation. PlatformVersion supported AndroidAndroid 4.4 and later iOSiOS 9.0 and later macOSOS X 10.7 and later tvOStvOS 9.0 and later Windows UWPWindows 10 Windows StoreWindows 8.1 or later Windows Phone StoreWindows Phone 8.1 or later Windows Phone SilverlightWindows Phone 8.0 or later Windows (Desktop Apps)Windows 7 or later

Starts the default app associated with the URI scheme name for the specified URI.

The URI. The launch operation. PlatformVersion supported AndroidAndroid 4.4 and later iOSiOS 9.0 and later macOSOS X 10.7 and later tvOStvOS 9.0 and later Windows UWPWindows 10 Windows StoreWindows 8.1 or later Windows Phone StoreWindows Phone 8.1 or later Windows Phone SilverlightWindows Phone 8.0 or later Windows (Desktop Apps)Windows 7 or later

Asynchronously query whether an app can be activated for the specified URI and launch type.

The URI. The type of launch for which to query support. Returns true if the default app for the URI scheme was launched; false otherwise. PlatformVersion supported iOSiOS 9.0 and later tvOStvOS 9.0 and later Windows UWPWindows 10 Windows Store- Windows Phone Store- Windows Phone Silverlight- Windows (Desktop Apps)Windows 7 or later

Placeholder to supply attributes for starting a task.

Specifies the processor architecture supported by an app.

The x86 processor architecture.

The ARM processor architecture.

The x64 processor architecture.

A neutral processor architecture.

An unknown processor architecture.

Provides information about the device for profiling purposes.

Gets the device form factor. For example, the app could be running on a phone, tablet, desktop, and so on.

Gets version info about the device family.

Provides version information about the device family.

Gets a string that represents the type of device the application is running on.

Gets the version within the device family.

Describes a color in terms of alpha, red, green, and blue channels. Can be implicitly converted into a variety of platform-specific types.

PlatformPlatform Type AndroidAndroid.Graphics.Color iOS, tvOS, macOS, watchOSCoreGraphics.CGColor iOS, tvOS, macOSCoreImage.CIColor iOS, tvOSUIKit.UIColor macOSAppKit.NSColor Windows UWP, Windows Store, Windows Phone StoreWindows.UI.Color Windows Phone SilverlightSystem.Windows.Media.Color PlatformVersion supported AndroidAndroid 4.4 and later iOSiOS 9.0 and later macOSOS X 10.7 and later tvOStvOS 9.0 and later watchOSwatchOS 2.0 and later TizenTizen 3.0 Windows UWPWindows 10 Windows StoreWindows 8.1 or later Windows Phone StoreWindows Phone 8.1 or later Windows Phone SilverlightWindows Phone 8.0 or later Windows (Desktop Apps)Windows 7 or later

Creates a new structure by using the specified sRGB color channel values.

Creates a new structure by using the specified sRGB alpha channel and color channel values.

Compares two structures for equality.

The structure to compare to this .

Returns the color value as a UInt32 of the form 0xBBGGRRAA.

Gets or sets the sRGB alpha channel value of the color.

Gets or sets the sRGB blue channel value of the color.

Gets or sets the sRGB green channel value of the color.

Gets or sets the sRGB red channel value of the color.

Specifies where the context menu should be positioned relative to the selection rectangle

Place the context menu above the selection rectangle.

Place the context menu below the selection rectangle.

Place the context menu to the left of the selection rectangle.

Place the context menu to the right of the selection rectangle.

Represents a command in a context menu or message dialog box.

Gets or sets the identifier of the command.

Ges or sets the handler for the event that is fired when the user invokes the command.

Gets or sets the label for the command.

Represents a callback function that handles the event that is fired when the user invokes a context menu command.

Represents the invoked command.

Represents a dialog.

The dialog has a command bar that can support up to three commands. If you don't specify any commands, then a default command is added to close the dialog. The dialog dims the screen behind it and blocks touch events from passing to the app's canvas until the user responds. Message dialogs should be used sparingly, and only for critical messages or simple questions that must block the user's flow. PlatformVersion supported AndroidAndroid 4.4 and later iOSiOS 9.0 and later macOSOS X 10.7 and later tvOStvOS 9.0 and later Windows UWPWindows 10 Windows StoreWindows 8.1 or later Windows Phone StoreWindows Phone 8.1 or later Windows Phone SilverlightWindows Phone 8.0 or later Windows (Desktop Apps)Windows 7 or later

Initializes a new instance of the class to display an untitled message dialog box that can be used to ask your user simple questions.

The message you want displayed to the user.

Initializes a new instance of the class to display a titled message dialog box that can be used to ask your user simple questions.

The message you want displayed to the user. The title you want displayed on the dialog box.

Begins an asynchronous operation showing a dialog.

An object that represents the asynchronous operation. For more on the async pattern, see Asynchronous programming in the Windows Runtime. In some cases, such as when the dialog is closed by the system out of your control, your result can be an empty command. Returns either the command selected which destroyed the dialog, or an empty command. For example, a dialog hosted in a charms window will return an empty command if the charms window has been dismissed.

Gets the set of commands that appear in the command bar of the message dialog.

This is the array of commands that makes the dialog actionable. Get this array and add your dialog commands to it. The commands.

Gets or sets the message to be displayed to the user.

The message to be displayed to the user. Use the content to convey the objective of the dialog. Present the message, error or blocking question as simply as possible without extraneous information. When a title is used, use the content to present additional information helpful to understanding or using the dialog. You can use this area to provide more detail or define terminology. Don't repeat the title with slightly different wording.

Gets or sets the index of the command you want to use as the cancel command. This is the command that fires when users press the ESC key. Add the commands before you set the index.

Gets or sets the index of the command you want to use as the default. This is the command that fires by default when users press the ENTER key instead of a specific command, for example.

Add the commands before you set the index. The index of the default command.

Gets or sets the title to display on the dialog box, if any.

The title you want to display on the dialog. If the title is not set, this will return an empty string. Use the title as a concise main instruction to convey the objective of the dialog. Long titles do not wrap and will be truncated. If you're using the dialog to deliver a simple message, error or question, omit the title. Rely on the to deliver that core information.

Represents a command in a context menu.

Initializes a new instance of the class.

Initializes a new instance of the UICommand class, using the specified label and event handler.

The label for the new command. The event handler for the new command.

Initializes a new instance of the UICommand class, using the specified label, event handler, and command identifier.

The label for the new command. The event handler for the new command. The command identifier for the new command.

Gets or sets the identifier of the command.

Gets or sets the handler for the event that is raised when the user selects the command.

Gets or sets the label for the command.

Provides methods and properties for interacting with the status bar on a window (app view).

PlatformVersion supported AndroidAndroid 4.4 and later iOSiOS 9.0 and later Windows UWPWindows 10 Mobile Windows Phone StoreWindows Phone 8.1 or later Windows Phone SilverlightWindows Phone 8.0 or later Windows (Desktop Apps)Windows 7 or later

Gets the status bar for the current window (app view).

Gets the progress indicator for the status bar.

The progress indicator for the status bar.

Shows the status bar.

Hides the status bar.

Provides methods and properties for interacting with the progress indicator on the status bar on a window (app view).

Hides the progress indicator.

Shows the progress indicator.

Gets or sets a value representing progress in the range 0 to 1.

PlatformVersion supported Windows UWPWindows 10 Mobile Windows Phone StoreWindows Phone 8.1 or later Windows Phone SilverlightWindows Phone 8.0 or later Windows (Desktop Apps)Windows 7 or later

Gets or sets the text label displayed on the progress indicator.

Defines constants that specify known system color values.

The background color.

The foreground color.

The accent color.

Defines the set of user interface element types.

An active caption element.

A background element.

A button face element.

The text displayed on a button.

The text displayed in a caption.

Greyed text.

A highlighted user interface (UI) element.

Highlighted text.

A hotlighted UI element.

An inactive caption element.

The text displayed in an inactive caption element.

A window.

The text displayed in a window's UI decoration.

Contains a set of common app user interface settings and operations.

PlatformVersion supported tvOStvOS 9.0 and later Windows UWPWindows 10 Mobile Windows StoreWindows 8.1 or later Windows Phone StoreWindows Phone 8.1 or later Windows Phone SilverlightWindows Phone 8.0 or later Windows (Desktop Apps)Windows 7 or later

Returns the color value of the specified color type.

An enumeration value that specifies the type of color to get a value for. The color value of the specified color type. PlatformVersion supported tvOStvOS 9.0 and later Windows UWPWindows 10 Mobile Windows StoreWindows 8.1 or later Windows Phone StoreWindows Phone 8.1 or later Windows Phone SilverlightWindows Phone 8.0 or later Windows (Desktop Apps)Windows 7 or later

Gets the color used for a specific user interface element type, such as a button face or window text.

The type of element for which the color will be obtained. The color of the element type, expressed as a 32-bit color value. PlatformVersion supported Windows UWPWindows 10 Mobile Windows StoreWindows 8.1 or later Windows Phone StoreWindows Phone 8.1 or later Windows Phone SilverlightWindows Phone 8.0 or later Windows (Desktop Apps)Windows 7 or later

Helper class for .

Converts a Unix time expressed as the number of seconds that have elapsed since 1970-01-01T00:00:00Z to a value.

A Unix time, expressed as the number of seconds that have elapsed since 1970-01-01T00:00:00Z (January 1, 1970, at 12:00 AM UTC). For Unix times before this date, its value is negative. A date and time value that represents the same moment in time as the Unix time.

Converts a Unix time expressed as the number of milliseconds that have elapsed since 1970-01-01T00:00:00Z to a value.

A Unix time, expressed as the number of milliseconds that have elapsed since 1970-01-01T00:00:00Z (January 1, 1970, at 12:00 AM UTC). For Unix times before this date, its value is negative. A date and time value that represents the same moment in time as the Unix time.

Returns the number of seconds that have elapsed since 1970-01-01T00:00:00Z.

The DateTimeOffset value. The number of seconds that have elapsed since 1970-01-01T00:00:00Z. Unix time represents the number of seconds that have elapsed since 1970-01-01T00:00:00Z (January 1, 1970, at 12:00 AM UTC). It does not take leap seconds into account. This method first converts the current instance to UTC before returning its Unix time. For date and time values before 1970-01-01T00:00:00Z, this method returns a negative value.

Returns the number of milliseconds that have elapsed since 1970-01-01T00:00:00.000Z.

The DateTimeOffset value. The number of milliseconds that have elapsed since 1970-01-01T00:00:00.000Z. Unix time represents the number of seconds that have elapsed since 1970-01-01T00:00:00Z (January 1, 1970, at 12:00 AM UTC). It does not take leap seconds into account. This method returns the number of milliseconds in Unix time. This method first converts the current instance to UTC before returning the number of milliseconds in its Unix time. For date and time values before 1970-01-01T00:00:00Z, this method returns a negative value.

Provides information about the Operating System.

PlatformVersion supported AndroidAndroid 4.4 and later iOSiOS 9.0 and later macOSOS X 10.7 and later tvOStvOS 9.0 and later watchOSwatchOS 2.0 and later Windows UWPWindows 10 Windows StoreWindows 8.1 or later Windows Phone StoreWindows Phone 8.1 or later Windows Phone SilverlightWindows Phone 8.0 or later Windows (Desktop Apps)Windows 7 or later

Gets an OperatingSystem object that contains the current platform identifier and version number.

Notifies listeners of dynamic changes to a map, such as when items are added or removed.

The type of the keys in the map. The type of the values in the map.

Occurs when the map changes.

Represents the method that handles the changed event of an observable map.

The type of the keys in the map. The type of the values in the map.

Provides data for the changed event of a map collection.

The type of the keys in the map.

Gets the type of change that occurred in the map.

Gets the key of the item that changed.

Represents a collection of key-value pairs, correlating several other collection interfaces.

Describes the action that causes a change to a collection.

The collection is changed.

An item is added to the collection.

An item is removed from the collection.

An item is changed in the collection.

Enables you to detect whether a specified member, type, or API contract is present so that you can safely make API calls across a variety of devices.

Returns true or false to indicate whether the API contract with the specified name and major version number is present.

The name of the API contract. The major version number of the API contract. True if the specified API contract is present; otherwise, false.

Returns true or false to indicate whether the API contract with the specified name and major and minor version number is present.

The name of the API contract. The major version number of the API contract. The minor version number of the API contract. True if the specified API contract is present; otherwise, false.

Returns true or false to indicate whether a specified named constant is present for a specified enumeration.

The namespace-qualified name of the type. The name of the constant. True if the specified constant is present; otherwise, false.

Returns true or false to indicate whether a specified event is present for a specified type.

The namespace-qualified name of the type. The name of the event. True if the specified event is present for the type; otherwise, false.

Returns true or false to indicate whether a specified method is present for a specified type.

The namespace-qualified name of the type. The name of the method. True if the specified method is present for the type; otherwise, false.

Returns true or false to indicate whether a specified method overload with the specified number of input parameters is present for a specified type.

The namespace-qualified name of the type. The name of the method. The number of input parameters for the overload. True if the specified method is present for the type; otherwise, false.

Returns true or false to indicate whether a specified property (writeable or read-only) is present for a specified type.

The namespace-qualified name of the type. The name of the property. True if the specified property is present for the type; otherwise, false.

Returns true or false to indicate whether a specified read-only property is present for a specified type.

The namespace-qualified name of the type. The name of the property. True if the specified property is present for the type; otherwise, false.

Returns true or false to indicate whether a specified writeable property is present for a specified type.

The namespace-qualified name of the type. The name of the property. True if the specified property is present for the type; otherwise, false.

Returns true or false to indicate whether a specified type is present.

The namespace-qualified name of the type. True if the specified type is present; otherwise, false.

Represents x- and y-coordinate values that define a point in a two-dimensional plane.

The horizontal position of the point.

The vertical position of the point.

Contains number values that represent the location and size of a rectangle.

Initializes a Rect structure that has the specified x-coordinate, y-coordinate, width, and height.

The x-coordinate of the top-left corner of the rectangle. The y-coordinate of the top-left corner of the rectangle. The width of the rectangle. The height of the rectangle.

The x-coordinate location of the left side of the rectangle.

The y-coordinate location of the top side of the rectangle.

A value that represents the Width of the rectangle.

A value that represents the Height of the rectangle.

Represents a method that handles general events.

The event source. The event data. If there is no event data, this parameter will be null. The event source. The event data. If there is no event data, this parameter will be null.

Extensions for .

Returns a read-only wrapper for the current collection.

An object that acts as a read-only wrapper around the current .

Contains extension methods for the IStorageFile and IStorageFolder interfaces for .NET interop.

Retrieves a stream for reading from a specified file.

Retrieves a stream for reading from a file in the specified parent folder.

The Windows Runtime IStorageFolder object that contains the file to read from. The path, relative to the root folder, to the file to read from.

Retrieves a stream for writing to a specified file.

The Windows Runtime IStorageFile object to write to.

Retrieves a stream for writing from a file in the specified parent folder.

The Windows Runtime IStorageFolder object that contains the file to write to. The path, relative to the root folder, to the file to write to.