ICM_GETSTATE

See also ICM_SETSTATE

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

Queries a video compression driver return its current configuration in a block of memory or to determine the amount of memory required to retrieve the configuration information.

• Returns the amount of memory, in bytes, required by the state information.

wParam

Address of a block of memory to hold the current configuration information. You can specify NULL for this parameter to determine the amount of memory required for the configuration information

lParam

Size, in bytes, of the block of memory.

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