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