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Editorial Team
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Asked: 2026-05-15T07:22:25+00:00

Right now I have a window with horizontal ad vertical scrollbars. I use these

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Right now I have a window with horizontal ad vertical scrollbars. I use these parameters to initialize it.

//Set OGL Frame scroll bar
    SCROLLINFO inf;
    inf.cbSize = sizeof(SCROLLINFO);
    inf.fMask = SIF_PAGE | SIF_POS;
    inf.nPage = 20;
    inf.nPos = 30;

It creates them in the center and I like their size, but when I scroll I multiply by 50 which creates chopiness. How could I add more resolution to the bars and still keep the same thumb size. Is there a way I can calculate the size and position of the bar based on the above parameters?

Thanks

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1 Answer

  1. Editorial Team

    Right, here’s my solution even though one is already accepted.

    Everytime I have issues with the windows controls I use Controlspy to experiment with them. Controlspy also lists all the different messages that can be sent to the different controls. Find one that is similar to what you are trying to do and check that specific message on MSDN.

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