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This method retrieves the total number of frames that the filter has delivered since it started streaming.
Syntax
HRESULT GetNumNotDropped( long* plNotDropped ); |
Parameters
- plNotDropped
-
[out] Pointer to a long variable that receives the number of delivered frames.
Return Value
Returns an HRESULT value. The following table shows some possible return values.
Value | Description |
---|---|
S_OK |
Success. |
E_POINTER |
NULL pointer argument. |
Remarks
The filter resets the count to zero when it transitions from stopped to paused.
If your application uses the IAMStreamControl interfaceto control a pin, the driver might continue to count dropped and non-dropped frames while the pin is off. To get an accurate count, call this method once when you turn on the pin, and again when you turn off the pin. The difference is the total number of delivered frames. (If the start time occurs later than the call to IAMStreamControl::StartAt, the application should listen for the EC_STREAM_CONTROL_STARTEDevent.) These remarks also apply if your application uses the ICaptureGraphBuilder2::ControlStreammethod.
Requirements
Windows Embedded CE | Windows CE 5.0 and later |
Windows Mobile | Windows Mobile Version 5.0 and later |
Note | Microsoft DirectShow applications and DirectShow filters have
different include file and Library requirements
For more information, see Setting Up the Build Environment See AlsoReferenceIAMDroppedFrames InterfaceIAMStreamControl Interface IAMStreamControl::StartAt EC_STREAM_CONTROL_STARTED ICaptureGraphBuilder2::ControlStream |