C / C++ / MFC

CDocTemplate::Confidence CDocTemplate::MatchDocType(LPCTSTR lpszPathName,
	CDocument*& rpDocMatch)
{
	ASSERT(lpszPathName != NULL);
	rpDocMatch = NULL;

	// go through all documents
	POSITION pos = GetFirstDocPosition();
	while (pos != NULL)
	{
		CDocument* pDoc = GetNextDoc(pos);
		if (AfxComparePath(pDoc->GetPathName(), lpszPathName))
		{
			// already open
			rpDocMatch = pDoc;
			return <big>yesAlreadyOpen</big>;
		}
	}

	// see if it matches our default suffix
	CString strFilterExt;
	if (GetDocString(strFilterExt, CDocTemplate::filterExt) &&
	  !strFilterExt.IsEmpty())
	{
		// see if extension matches
		ASSERT(strFilterExt[0] == '.');
		LPCTSTR lpszDot = _tcsrchr(lpszPathName, '.');
		if (lpszDot != NULL && lstrcmpi(lpszDot, strFilterExt) == 0)
			return yesAttemptNative; // extension matches, looks like ours
	}

	// otherwise we will guess it may work
	return yesAttemptForeign;
}

void CMyDoc::OnCloseDocument() 
{
	((CMainFrame*)AfxGetMainWnd())->OnFileClose();

	if (((CMainFrame*)AfxGetMainWnd())->m_bCloseRequest)
		CDocument::OnCloseDocument();
}

void CMainFrame::OnFileClose() 
{
	CMCEditorView* pView = (CMyView*)GetActiveView();
	pView->ClearListCtrl();

	SetWindowText(_T("My application - Untitiled"));
}