Dragging a dialog by clicking anywhere on it

CodeGuru content and product recommendations are editorially independent. We may make money when you click on links to our partners. Learn More.

This is how you create a dialog that can be dragged by clicking anywhere
on it, ie. not just the caption bar.

void CNCHitDlg::OnLButtonDown(UINT nFlags, CPoint point)
{
	CDialog::OnLButtonDown(nFlags, point);
	// fake windows into thinking your clicking on the caption, does not
	// maximize on double click
	PostMessage( WM_NCLBUTTONDOWN, HTCAPTION, MAKELPARAM( point.x, point.y));
}

or

UINT CNCHitDlg::OnNcHitTest(CPoint point)
{
	UINT nHitTest = CDialog::OnNcHitTest( point );
	// also fake windows out, but this maximizes the window when you double
	// click on it. 
	return (nHitTest == HTCLIENT) ? HTCAPTION : nHitTest;
}