The ICM_GETINFO message is set to a video compression driver to have it return information describing the driver.
Parameters
dwParam1
Specifies a pointer to an ICINFO data structure used to return information.
dwParam2
Specifies the size of the ICINFO data structure.
Return Value
Returns the size of the ICINFO data structure, or zero if an error occurs.
Comments
Typically, this message is sent by applications to display a list of the installed compressors.
The driver should fill in all members of the ICINFO structure except the szDriver member.