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CanvasBitmapLoadAsync Method (ICanvasResourceCreator, Uri, Single)
Loads a bitmap from an image file (jpeg, png, etc.) located at a URI, and assigns it the specified DPI.

Namespace:  Microsoft.Graphics.Canvas
Assembly:  Microsoft.Graphics.Canvas (in Microsoft.Graphics.Canvas.dll) Version: 0.0.0.0
Syntax
C#
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public static IAsyncOperation<CanvasBitmap> LoadAsync(
	ICanvasResourceCreator resourceCreator,
	Uri uri,
	float dpi
)

Parameters

resourceCreator
Type: Microsoft.Graphics.CanvasICanvasResourceCreator
uri
Type: SystemUri
dpi
Type: SystemSingle

Return Value

Type: IAsyncOperationCanvasBitmap
Remarks

The bitmap is set to premultiplied alpha.

When loading a JpegXR format bitmap that contains high dynamic range (HDR) pixel data, the loaded bitmap may use one of the pixel formats:

  • DirectXPixelFormat.R16G16B16A16Float
  • DirectXPixelFormat.R32G32B32A32Float
  • DirectXPixelFormat.R16G16B16A16UIntNormalized

For all other file formats, or when the current device does not support high dynamic range pixel formats (as reported by IsPixelFormatSupported(DirectXPixelFormat)), the loaded bitmap will use DirectXPixelFormat.B8G8R8A8UIntNormalized.

See Also