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Thread: [2008] Panning or scrolling an image with an indexed palette

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  1. Jun 7th, 2008, 10:35 PM #1
    Latch
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    Question [2008] Panning or scrolling an image with an indexed palette

    I need to pan (or slide) an image up, down, left, or right. It's easy with the graphics object, but the problem is that the graphics object won't work with indexed images. I'm working with 4bppIndexed format. I can get it to work by converting the image to a non-indexed format, then use the DrawImageUnscaled method of the graphics object, then convert it back to an indexed format. The problem is that the conversion back to indexed format requires manually redrawing every pixel and that is way too slow for this app. It needs to be done in a split second.

    Anyone know how to accomplish this much faster?
    Last edited by Latch; Jun 8th, 2008 at 05:33 PM.
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