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I need to migrate a big Visual studio 2010 MFC project from Windows 7 to Windows 10
My application is intended to be used on tablets with a touchscreen (the source of the problem and therefore the origin of this post)
I am doing some preliminary tests (Project here) to evaluate the feasibility of this migration and I already detect a bug in the MFC library : Bad vertical scroll management when using touchscreen

If i use the default vertical scroll function : 

void CDlgScrollable::OnVScroll(UINT nSBCode, UINT nPos, CScrollBar* pScrollBar)
{
    CDialog::OnVScroll(nSBCode, nPos, pScrollBar);
    return;
}

I get a bad scrolling result :

enter image description here

As you see, the scrollbar is at the end but the formview is at top.

important notes:

  • I didn't have this problem on Windows 7
  • This problem occurs only when using the touchscreen. if I use the mouse everything goes well.

I migrated my project from visual studio 2010 to visual studio 2017, thinking that it comes from an incompatibility between the old version of MFC 2010 (MFC100.dll) and Windows 10 but I still have the same problem on visual studio 2017

Question:

how can i fix this? although I think I have only two choices:

  • Explicitly manage scrolling (which will be extremely complicated because I have a lot of dialogs with setfocus on controls ....)
  • Wait for the Microsoft update ....
Alpha_33
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    [Same question](https://stackoverflow.com/q/62024461/1889329). With the [same answer](https://learn.microsoft.com/en-us/windows/win32/wintouch/legacy-support-for-panning-with-scrollbars). – IInspectable Jun 01 '20 at 14:09
  • Thanks. that's what I feared the most, rewriting everything explicitly ... – Alpha_33 Jun 01 '20 at 14:36

0 Answers0