IAMVideoControl::GetCurrentActualFrameRate method (strmif.h)
The GetCurrentActualFrameRate method retrieves the actual frame rate, expressed as a frame duration in 100-nanosecond units. USB (Universal Serial Bus) and IEEE 1394 cameras may provide lower frame rates than requested because of bandwidth availability. This is only available during video streaming.
Syntax
HRESULT GetCurrentActualFrameRate(
[in] IPin *pPin,
[out] LONGLONG *ActualFrameRate
);
Parameters
[in] pPin
Pointer to the pin to retrieve the frame rate from.
[out] ActualFrameRate
Pointer to the frame rate in frame duration in 100-nanosecond units.
Return value
Returns an HRESULT value that depends on the implementation of the interface.
Requirements
| Minimum supported client | Windows 2000 Professional [desktop apps only] |
| Minimum supported server | Windows 2000 Server [desktop apps only] |
| Target Platform | Windows |
| Header | strmif.h (include Dshow.h) |
| Library | Strmiids.lib |