How to Scroll Back after use “ScrollWindowEx” in VC++

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I want to scroll spacial area in PropertySheet.

I use "ScrollWindowEx(0, nDelta, &rect, NULL, NULL, rect1, SW_SCROLLCHILDREN | SW_INVALIDATE | SW_ERASE )" to scroll this area.

Scrollup is ok.

But can not scroll back.

Any one know why ?

And how to solve it ?

Thanks!

Posted 11-Feb-14 13:00pm

wy737

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«_Superman_» 12-Feb-14 9:26am

Check the value of nDelta. A negative value scrolls up and a positive value scrolls down.

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KarstenK · Answer 1 · 2014-02-13T00:51:00

Solution 1

by reading the MSDN I support Supermans comment. A negative value should do the job. Watch out for all parameters.

http://msdn.microsoft.com/en-us/library/windows/desktop/bb787593(v=vs.85).aspx[^]

Posted 13-Feb-14 0:51am

KarstenK