IC Imaging Control C++

FrameQueueSink::isCancelRequested Method

FrameQueueSink::isCancelRequested Method

Returns true when Grabber::stopLive was called. The sink is required to halt operation and return from any callbacks as soon as possible.
Syntax:
bool    isCancelRequested() const;
Return Value:

true when the sink is supposed to cancel its operation, otherwise false.

:

It is necessary to check this flag when processing images in a loop in FrameQueueSinkListener::framesQueued. You should return as soon as possible from FrameQueueSinkListener::framesQueued when this flag is set to prevent deadlocks.

See also: FrameQueueSink, FrameQueueSinkListener::framesQueued

<< FrameQueueSink

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