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ICM_DECOMPRESSEX
The ICM_DECOMPRESSEX message notifies a video compression driver to decompress
a frame of data directly to the screen, decompress to an upside-down DIB, or
decompress images described with source and destination rectangles.
ICM_DECOMPRESSEX
wParam = (DWORD) (LPVOID) &icdex;
lParam = sizeof(ICDECOMPRESSEX);
Parameters
icdex
Address of an ICDECOMPRESSEX structure.
lParam
Size, in bytes, of ICDECOMPRESSEX.
Return Values
Returns ICERR_OK if successful or an error otherwise.
Remarks
This message is similar to ICM_DECOMPRESS except that it uses the ICDECOMPRESSEX structure to define its decompression information.
If you want the driver to decompress data directly to the screen, send the
ICM_DRAW message.
The driver returns an error if this message is received before the
ICM_DECOMPRESSEX_BEGIN message.
See Also
ICDECOMPRESSEX, ICM_DECOMPRESS, ICM_DECOMPRESSEX_BEGIN, ICM_DRAW
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