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WM_MOVING in a not TitleBar window (How to)

Posted on 1998-09-23
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Last Modified: 2013-11-19
I have an MFC window without TitleBar. I want to handle WM_MOVE event in a given area. What can I do, when I catched that click? I tried to call CWnd::OnMoving(...) from there, but no.
Help please.
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Question by:wau
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danny_pav earned 50 total points
ID: 1322534
I am guessing you want to drag the window by clicking on some area and moving it as if you had clicked the title bar and moved it.

Then you should do this:
Override OnHitTest and tell the system that you are clicking in the title bar so that when clicked and moved, it will just do what it would for the title bar.


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Author Comment

by:wau
ID: 1322535
I made like this:
UINT CMyDlg::OnNcHitTest(CPoint point)
{
      if( mouse_down ) //changed by WM_LBUTTONDOWN/UP
      {
            mouse_down=!mouse_down;
            return HTCAPTION;
      }
      else return CDialog::OnNcHitTest(point);
}
but no.
I tried also, calling this->SetCapture() and ::ReleaseCapture() every time mouse down/up occurs, but no.
Any of you have an idea what?
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LVL 3

Expert Comment

by:danny_pav
ID: 1322536
you don't need to test the mouse, just return HTCAPTION when the point is in the area you want


      UINT CMyDlg::OnNcHitTest(CPoint point)
      {
      CRect rc;
      get_click_drag_rect(rc);
      if (rc.PtInRect(point))
            return HTCAPTION;
      return CDialog::OnNcHitTest(point);
      }


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