ICM_DECOMPRESS_GET_PALETTE

	Overview

	Group

	Quick Info

The ICM_DECOMPRESS_GET_PALETTE message requests that the video decompression driver supply the color table of the output BITMAPINFOHEADER structure. You can send this message explicitly or by using the ICDecompressGetPalette macro.

wParam = (DWORD) (LPVOID) lpbiInput;

lParam = (DWORD) (LPVOID) lpbiOutput;

Parameters
lpbiInput

Address of a BITMAPINFOHEADER structure containing the input format.

lpbiOutput

Address of a BITMAPINFOHEADER structure to contain the color table. The space reserved for the color table is always at least 256 colors. You can specify zero for this parameter to return only the size of the color table.

Return Values
Returns ICERR_OK if successful or an error otherwise.

Remarks
If lpbiOutput is nonzero, the driver sets the biClrUsed member of BITMAPINFOHEADER to the number of colors in the color table. The driver fills the bmiColors members of BITMAPINFO with the actual colors.

The driver should support this message only if it uses a palette other than the one specified in the input format.

See Also
BITMAPINFO, BITMAPINFOHEADER, ICDecompressGetPalette

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