C / C++ / MFC

void CMyRichEditCtrl::OnRButtonDown(UINT nFlags, CPoint point) <br />
{<br />
	CPoint local = point;<br />
	ClientToScreen(&point);<br />
	GetParent()->SendMessage(WM_CONTEXTMENU, (WPARAM) GetParent()->GetSafeHwnd(), <br />
		MAKELPARAM(point.x, point.y));<br />
	CRichEditCtrl::OnRButtonDown(nFlags, local);<br />
}<br />
<br />
LRESULT CMyRichEditCtrl::DefWindowProc(UINT message, WPARAM wParam, LPARAM lParam) <br />
{<br />
	// TODO: Add your specialized code here and/or call the base class<br />
	<br />
	if(message == WM_CONTEXTMENU){<br />
		GetParent()->SendMessage(WM_CONTEXTMENU, wParam, lParam);<br />
		return(0);<br />
	}<br />
	else<br />
		return CRichEditCtrl::DefWindowProc(message, wParam, lParam);<br />
}

void CMyDialog::OnContextMenu(CWnd* pWnd, CPoint point) <br />
{<br />
	if (point.x == -1 && point.y == -1){<br />
		//keystroke invocation<br />
		CRect rect;<br />
		m_RichEdit.GetClientRect(rect);<br />
		m_RichEdit.ClientToScreen(rect);<br />
        point = rect.TopLeft();<br />
		point.Offset(5, 5);<br />
	}else{<br />
		CRect codeWindowRect;<br />
<br />
		m_RichEdit.GetWindowRect(&codeWindowRect);<br />
		if(!codeWindowRect.PtInRect(point))<br />
			return;<br />
	}<br />
<br />
<br />
	// load the menu from the resources<br />
	CMenu menu;<br />
	VERIFY(menu.LoadMenu(IDR_CONTEXT_MENU));<br />
<br />
	// loads the sub-menu<br />
	CMenu *pPopup = menu.GetSubMenu(SUB_CCODE);<br />
	ASSERT(pPopup);<br />
<br />
	long lStart, lEnd;<br />
	// according selection, set sensitivity<br />
	m_RichEdit.GetSel(lStart, lEnd);<br />
	pPopup->EnableMenuItem(IDC_COPY, <br />
		MF_BYCOMMAND | ((lStart != lEnd) ? MF_ENABLED : MF_DISABLED | MF_GRAYED));<br />
	pPopup->EnableMenuItem(IDC_CUT, <br />
		MF_BYCOMMAND | ((lStart != lEnd) ? MF_ENABLED : MF_DISABLED | MF_GRAYED));<br />
	pPopup->EnableMenuItem(IDC_PASTE, <br />
		MF_BYCOMMAND | ((m_RichEdit.CanPaste()) ? MF_ENABLED : MF_DISABLED | MF_GRAYED));<br />
	pPopup->EnableMenuItem(IDC_CLEAR, <br />
		MF_BYCOMMAND | ((lStart != lEnd) ? MF_ENABLED : MF_DISABLED | MF_GRAYED));<br />
	pPopup->EnableMenuItem(IDC_UNDO, <br />
		MF_BYCOMMAND | ((m_RichEdit.CanUndo()) ? MF_ENABLED : MF_DISABLED | MF_GRAYED));<br />
<br />
	pPopup->TrackPopupMenu(TPM_LEFTALIGN | TPM_RIGHTBUTTON, point.x, point.y, this);<br />
}

CPropertypage shdlg;
shdlg.m_NewTitle="Hello World";

SetWindowText(m_NewTitle);