WICGifLogicalScreenDescriptorProperties enumeration
Specifies the logical screen descriptor properties for Graphics Interchange Format (GIF) metadata.
Syntax
typedef enum WICGifLogicalScreenDescriptorProperties { WICGifLogicalScreenSignature = 0x00000001, WICGifLogicalScreenDescriptorWidth = 0x00000002, WICGifLogicalScreenDescriptorHeight = 0x00000003, WICGifLogicalScreenDescriptorGlobalColorTableFlag = 0x00000004, WICGifLogicalScreenDescriptorColorResolution = 0x00000005, WICGifLogicalScreenDescriptorSortFlag = 0x00000006, WICGifLogicalScreenDescriptorGlobalColorTableSize = 0x00000007, WICGifLogicalScreenDescriptorBackgroundColorIndex = 0x00000008, WICGifLogicalScreenDescriptorPixelAspectRatio = 0x00000009 } WICGifLogicalScreenDescriptorProperties;
Constants
- WICGifLogicalScreenSignature
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[VT_UI1 | VT_VECTOR] Indicates the signature property.
- WICGifLogicalScreenDescriptorWidth
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[VT_UI2] Indicates the width in pixels.
- WICGifLogicalScreenDescriptorHeight
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[VT_UI2] Indicates the height in pixels.
- WICGifLogicalScreenDescriptorGlobalColorTableFlag
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[VT_BOOL] Indicates the global color table flag. TRUE if a global color table is present; otherwise, FALSE.
- WICGifLogicalScreenDescriptorColorResolution
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[VT_UI1] Indicates the color resolution in bits per pixel.
- WICGifLogicalScreenDescriptorSortFlag
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[VT_BOOL] Indicates the sorted color table flag. TRUE if the table is sorted; otherwise, FALSE.
- WICGifLogicalScreenDescriptorGlobalColorTableSize
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[VT_UI1] Indicates the value used to calculate the number of bytes contained in the global color table.
To calculate the actual size of the color table, raise 2 to the value of the field + 1.
- WICGifLogicalScreenDescriptorBackgroundColorIndex
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[VT_UI1] Indicates the index within the color table to use for the background (pixels not defined in the image).
- WICGifLogicalScreenDescriptorPixelAspectRatio
-
[VT_UI1] Indicates the factor used to compute an approximation of the aspect ratio.
Requirements
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Minimum supported client |
Windows 7, Windows Vista with SP2 and Platform Update for Windows Vista [desktop apps only] |
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Minimum supported server |
Windows Server 2008 R2, Windows Server 2008 with SP2 and Platform Update for Windows Server 2008 [desktop apps only] |
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Header |
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IDL |
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