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ICM_DECOMPRESS_SET_PALETTE
The ICM_DECOMPRESS_SET_PALETTE message specifies a palette for a video
decompression driver to use if it is decompressing to a format that uses a palette.
You can send this message explicitly or by using the ICDecompressSetPalette macro.
ICM_DECOMPRESS_SET_PALETTE
wParam = (DWORD) (LPVOID) lpbiPalette;
lParam = 0;
Parameters
lpbiPalette
Address of a BITMAPINFOHEADER structure whose color table contains the colors that should be used if
possible. You can specify zero to use the default set of output colors.
Return Values
Returns ICERR_OK if the decompression driver can precisely decompress images
to the suggested palette using the set of colors as they are arranged in the
palette. Returns ICERR_UNSUPPORTED otherwise.
Remarks
This message should not affect decompression already in progress; rather,
colors passed using this message should be returned in response to future
ICM_DECOMPRESS_GET_FORMAT and ICM_DECOMPRESS_GET_PALETTE messages. Colors are sent back
to the decompression driver in a future ICM_DECOMPRESS_BEGIN message.
This message is used primarily when a driver decompresses images to the screen
and another application that uses a palette is in the foreground, forcing the
decompression driver to adapt to a foreign set of colors.
See Also
BITMAPINFOHEADER, ICDecompressSetPalette, ICM_DECOMPRESS_BEGIN, ICM_DECOMPRESS_GET_FORMAT, ICM_DECOMPRESS_GET_PALETTE
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