ICM_GET message

The ICM_GET message retrieves an application-defined DWORD value from a video compression driver.

ICM_GET 
wParam = (DWORD) (LPVOID) pv; 
lParam = (DWORD) cb;

Parameters

pv: Pointer to a block of memory to be filled with the current state. You can also specify NULL to determine the amount of memory required by the state information.
cb: Size, in bytes, of the block of memory.

Returns the amount of memory, in bytes, required to store the status information.

The structure used to represent state information is driver specific and is defined by the driver.

Requirement	Value
Minimum supported client	Windows 2000 Professional [desktop apps only]
Minimum supported server	Windows 2000 Server [desktop apps only]
Header	Vfw.h