The ICM_DECOMPRESS message is sent to a video compression driver to decompress a frame of data into an application-supplied buffer.
Parameters
dwParam1
Specifies a pointer to an ICDECOMPRESS structure.
dwParam2
Specifies the size of the ICDECOMPRESS structure.
Return Value
Returns ICERR_OK if successful. Otherwise, returns an error number.
Comments
If the driver is to decompress data directly to the screen instead of a buffer, it receives the ICM_DRAW message.
The driver should return an error if this message is received before the ICM_DECOMPRESS_BEGIN message.