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The ICM_GETDEFAULTKEYFRAMERATE message queries a video compression driver for its default (or preferred) key-frame spacing. You can send this message explicitly or by using the ICGetDefaulteyFrameRate macro.
ICM_GETDEFAULTKEYFRAMERATE
wParam = (DWORD_PTR) (LPVOID) &dwICValue;
lParam = 0;
Parameters
-
dwICValue
-
Address to contain the preferred key-frame spacing.
Return Value
Returns ICERR_OK if the driver supports this message or ICERR_UNSUPPORTED otherwise.
Requirements
| Requirement | Value |
|---|---|
| Minimum supported client |
Windows 2000 Professional [desktop apps only] |
| Minimum supported server |
Windows 2000 Server [desktop apps only] |
| Header |
|