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I'm trying to increase the size vertically. I got the horizontal resize to work, however when i add the follow snippet of code the image produced is random set of dots.

Using this code if I get to the end of a scanline and I need to add another copy of the scanline I'm trying to use fseek to return to the start of that scanline I just read.

   if ((j + 1) % resize == 0) // if i need to print another line
            {
                fseek(inptr, -bi.biWidth - padding, SEEK_CUR);
            }

http://pastebin.com/G305s52E

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One obvious problem is that fseek takes arguments (and offsets) in bytes, and biWidth is in pixels...

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