C / C++ / MFC

In DlgClass.cpp

ON_COMMAND(ID_MENUITEM1, OnMenuItemEdit1Clicked)
ON_UPDATE_COMMAND_UI(ID_MENUITEM1, OnUpdateMenuItemEdit1)

//On Right-clicking the dialog, this function is called
VOID CDlgClass::OnContextMenu(CWnd* pWnd, CPoint point)
{
	//Here, another class' ShowContextMenu is called to load the menu and show it
	m_pAnotherClass->ShowContextMenu( this, point);
}

void CDlgClass::OnMenuItemEdit1Clicked() 
{
	//Control reaches here when menu item 1 is clicked
}

void CDlgClass::OnUpdateMenuItemEdit1(CCmdUI* pCmdUI) 
{
	//Control is expected to reach here before the menu launches but doesn't do so. Why?
	//I am expecting menu Item 1 to be disabled before it shows up.

	pCmdUI->Enable(FALSE);
}

In AnotherClass.cpp

VOID CAnotherClass::ShowContextMenu(CWnd *pDlg, CPoint point) 
{
	CMenu cmCtxtMenu;

	cmCtxtMenu.LoadMenu(IDR_MENU_OPTIONS);
		
	CMenu *pcmPopupMenu = cmCtxtMenu.GetSubMenu(0);
	ASSERT(pcmPopupMenu);

	pcmPopupMenu->TrackPopupMenu (TPM_RIGHTBUTTON|TPM_LEFTALIGN, point.x, point.y, pDlg );
}

<br />
int ProcDlg::Do(){<br />
	if(!m_bIsRunning){		<br />
		AfxBeginThread(ThreadProc,this);<br />
		m_bIsRunning=TRUE;<br />
		return IDOK;<br />
	}<br />
	else if(m_bDoCancel){<br />
		return EndDialog(IDCANCEL);<br />
	}<br />
<br />
	else return IDOK;<br />
}<br />
<br />
void WaitDlg::OnCancel(){<br />
	...<br />
	m_pInfo->m_bDoCancel=TRUE;<br />
}<br />
<br />
UINT ThreadProc(void* pParam){<br />
	WaitDlg dlg;<br />
	dlg.m_pInfo=(ProcDlg*)pParam;<br />
	dlg.DoModal();<br />
	return 0;<br />
}<br />

<br />
	if (hWndParent != NULL && ::IsWindowEnabled(hWndParent))<br />
	{<br />
		::EnableWindow(hWndParent, FALSE);<br />
		bEnableParent = TRUE;<br />
	}<br />