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How to crop an image in an application based on dialog?

April 26, 2017application based CROP dialog image

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How to crop an image in an application based on dialog?

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A. Christian Graus Quoted :- The obvious thing to do is to create a new bitmap and use BitBlt to copy just the bit you need. The box part is easy, just draw the box at the mouse position, and keep track of the position in onmousemove.