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WICHeifProperties enumeration (wincodec.h)

Specifies the properties of a High Efficiency Image Format (HEIF) image.

Syntax

typedef enum WICHeifProperties {
  WICHeifOrientation = 0x1,
  WICHeifLayeredImageCanvasColor = 0x2,
  WICHeifLayeredImageLayerPositions = 0x3,
  WICHeifProperties_FORCE_DWORD = 0x7fffffff
} ;

Constants

 
WICHeifOrientation
Value: 0x1
[VT_UI2] Indicates the orientation of the image.

The value of this property uses the same numbering scheme as the System.Photo.Orientation property. For example, a value of 1 (PHOTO_ORIENTATION_NORMAL) indicates a 0 degree rotation.
WICHeifLayeredImageCanvasColor
Value: 0x2
WICColor (VT_UI4).

Specifies the background color of the layered image. If this property is present and not VT_EMPTY, then the image is a layered image.
WICHeifLayeredImageLayerPositions
Value: 0x3
An array of POINT structures (containing X,Y coordinates), specifying the coordinates of each layer image in the canvas (VT_VECTOR		 VT_UI8).

The coordinates specify the placement of each layer image on the canvas. The order of each element in the array directly corresponds to the order of each layer image in the WICBitmapChainType_Layer type of chain. The resulting layered image has the same size as the canvas; that is, the dimensions of the primary image. Layer images are cropped to fit the canvas.
WICHeifProperties_FORCE_DWORD
Value: 0x7fffffff

Requirements

Requirement Value
Minimum supported client Windows 10, version 1809 [desktop apps only]
Minimum supported server Windows Server [desktop apps only]
Header wincodec.h
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