Thread: MFC :: Handling WS_VSCROLL (OnVScroll) ... Please help.

  1. #1
    Programming is fun, mkay?
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    Question MFC :: Handling WS_VSCROLL (OnVScroll) ... Please help.

    Hello. Thanks for reading my post; hopefuly you can help me out. I am on a Windows 2000 Pro. computer, and I am using MS Visual C++ 6.0 Standard. I have an application, a level editor I am working on for a game, and it's coming along well. The view class is derived from CView. Everything displays just fine, but I am having a little bit of trouble. I want the user to be able to scroll (horizontally and vertically). I can use the arrow keys to scroll, by calling ScrollWindow(), but I need another way to do this, too. I added the function OnVScroll() to my view class source file, but it doesn't scroll. How would I handle the function to scroll? Also, how would I set the size of the scrollbar so that it only scrolls to a certain point, and can't scroll anymore? I hope you know what I mean. If you can, please provide an answer to my question(s).

    Thanks,
    Matt U.

  2. #2
    jasondoucette.com JasonD's Avatar
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    I do not use MFC, but you should handle the scroll messages and make them call the same function that your keyboard handler calls when processing the arrow keys. There is no need to code the same process twice.

    The Win32 API function for setting scroll limitations on scroll bars is the SetScrollInfo Function.

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