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[liuhzsia]

oh,everybody ,i have meet a hard question in my vega prime study.In sample,I learn how to get the buffer in callback function,sucn as precull,postcull,predraw,postdraw.But that buffer is draw on the window in to desktop.not what I ...I .. get the buffer before draw in the channel.for example,if the vpWin is hide in the desktop,I also can get the image buffer (not black) and write the buffer to bmp format.My English is poor , expect someone can finish the question,I appreciate!