ICM_GETSTATE message
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_PTR) (LPVOID) pv;
lParam = (DWORD_PTR) cb;
Parameters
-
pv
-
Pointer to 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 Value
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.
Requirements
| Requirement | Value |
|---|---|
| Minimum supported client |
Windows 2000 Professional [desktop apps only] |
| Minimum supported server |
Windows 2000 Server [desktop apps only] |
| Header |
|