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ICM_GETSTATE
The ICM_GETSTATE message queries a video compression driver to return its
current configuration in a block of memory or to determine the amount of memory
required to retrieve the configuration information. You can send this message
explicitly or by using the ICGetState macro.
ICM_GETSTATE
wParam = (DWORD) (LPVOID) pv;
lParam = (DWORD) cb;
Parameters
pv
Address of a block of memory to contain the current configuration information.
You can specify NULL for this parameter to determine the amount of memory
required for the configuration information, as in ICGetStateSize.
cb
Size, in bytes, of the block of memory.
Return Values
If pv is NULL, returns the amount of memory, in bytes, required for configuration
information.
If pv is not NULL, returns ICERR_OK if successful or an error otherwise.
Remarks
The structure used to represent configuration information is driver specific
and is defined by the driver.
See Also
ICGetState, ICGetStateSize
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