Why must "stride" in the System.Drawing.Bitmap constructor be a multiple of 4?
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by Gorchestopher H
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Published on 2010-02-02T16:56:44Z
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2010/04/16
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I am writing an application that requires me to take a proprietary bitmap format (an MVTec Halcon HImage) and convert it into a System.Drawing.Bitmap in C#.
The only proprietary functions given to me to help me do this involve me writing to file, except for the use of a "get pointer" function.
This function is great, it gives me a pointer to the pixel data, the width, the height, and the type of the image.
My issue is that when I create my System.Drawing.Bitmap using the constructor:
new System.Drawing.Bitmap(width, height, stride, format, scan)
I need to specify a "stride" that is a multiple of 4. This may be a problem as I am unsure what size bitmap my function will be hit with. Supposing I end up with a bitmap that is 111x111 pixels, I have no way to run this function other than adding a bogus column to my image or subtracting 3 columns.
Is there a way I can sneak around this limitation?
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