How to pass unsigned char* array to image?

@lee_who wrote:

I want to pass the unsigned char* array 'buffer' (frame buffer) into an image,so that I can have an image that contains frames of the video grabber,
here is my code

Screen Shot 2017-06-13 at 3.56.15 PM.png1982x986 111 KB

when I run it,it can build succeeded but in 'ofImage.cpp'there is an error"Thread 1:EXC_BAD_ACCESS' imediately as below:

Screen Shot 2017-06-13 at 3.54.57 PM.png2026x1098 181 KB

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