MFC Dialog: How to drag a dialog by grabbing any point?

Q: How to drag a dialog by grabbing any point?

A: Go to the dialog class in your class view and choose "Add Windows message handler". Set the "Filter for messages available to class" dropdown to "Window". Select the 'WM_NCHITTEST' message and press "Add and Edit". Code the message handler like this:

Code:

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UINT CYourDialog::OnNcHitTest(CPoint point)
{ 
  UINT ret = CDialog::OnNcHitTest(point);
  if(ret == HTCLIENT)
    return HTCAPTION;

  return ret;
}

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