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ICM_GETDEFAULTKEYFRAMERATE message

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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
Vfw.h

See also

Video Compression Manager

Video Compression Messages