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QuestionHow to navigate memory using pointers? Pin
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Guffa28-Jul-08 13:58
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For a 24 bit bitmap, the location of a pixel can be calculated with:

scan0 + y * scan + x * 3

(Note that for a bitmap that is stored upside down, which is the common way, scan0 points to the last line, and scan is a negative value.)

Your code for looping the image is incomplete. The lines might not be stored end-to-end in memory, you have to skip any extra bytes between the lines (calculated by scan - x * 3). Also, if the bitmap is stored upside down, you will either get the data upside down, or only getting garbage after the first line read.

Despite everything, the person most likely to be fooling you next is yourself.

QuestionExplicitly free byte array Pin
Dudi Avramov28-Jul-08 9:18
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Questiontrouble with RegisterClientScriptBlock Pin
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