FrameUpdateFilterImpl::modifiesData Method |
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This method returns whether this frame update callback modifies the presented image data. The default implementation returns true. | |||||||||||||||||
Syntax: | virtual bool modifiesData() const; |
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Return Value: | The return value gives the class library a hint whether it has to create a copy of the image data before presenting it to this frame update callback.
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Remarks: | Overwrite this method and return false, if your frame filter never modifies the presented image data. |
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See also: | FrameUpdateFilterImpl, FrameUpdateFilterImpl::updateInPlace |