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I have created and rendered a directshow graph. The graph itself is being rendered into a ISampleGrabberCB and all is well.

However, if I press Ctrl+Alt+Del, the BufferCB on the ISampleGrabberCB stops getting called. I have checked the graph and it is still running. Why did ISampleGrabberCB stop working?

Paul Knopf
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    Whatever the cause is, it is not related to Sample Grabber itself. If you have a renderer there in chain, most likely it loses surfaces and affects the whole graph. – Roman R. Jan 25 '14 at 07:27
  • To narrow this down you could trying using the null renderer and see if the behaviour is the same. You could also try building the sample grabber filter from MSDN samples to debug this in more detail. – persiflage Feb 03 '14 at 13:57

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