MFC获取窗口句柄号的六种方法

今年有一门Windows程序设计课程，老师要求我们找几种获取窗口句柄号的方法，做了一下总结：

CClientDC dc(this);
CString fun1;
//直接获得
fun1.Format("%ld", AfxGetMainWnd()->m_hWnd); fun1 = "AfxGetMainWnd()->m_hWnd方法获取句柄号 = " + fun1; dc.TextOut(20, 50, fun1); //通过AfxGetApp()间接获得 fun1.Format("%ld", AfxGetApp()->GetMainWnd()->m_hWnd); fun1 = "AfxGetApp()->GetMainWnd()->m_hWnd方法获取句柄号 = " + fun1; dc.TextOut(20, 70, fun1); //当前窗口 fun1.Format("%ld", GetForegroundWindow()->m_hWnd); fun1 = "GetForegroundWindow()->m_hWnd 方法获取句柄号 = " + fun1; dc.TextOut(20, 90, fun1); //当前活动的窗口句柄 fun1.Format("%ld", GetActiveWindow()->m_hWnd); fun1 = "GetActiveWindow->m_hWnd方法获取句柄号 = " + fun1; dc.TextOut(20, 110, fun1); //窗口名 AfxGetMainWnd()->SetWindowText("我的程序"); CWnd *hwnd = FindWindow(NULL, "我的程序"); if (hwnd) { fun1.Format("%ld", hwnd->m_hWnd); fun1 = "FindWindow(\"GetWinHwnd\" , NULL)->m_hWnd 方法获取句柄号 = " + fun1; dc.TextOut(20, 130, fun1); } //利用GetSafeHwnd() // CWnd *hwnd = FindWindow(NULL, "我的程序"); if (hwnd) { fun1.Format("%ld", hwnd->GetSafeHwnd()); fun1 = "GetSafeHwnd() 方法获取句柄号 = " + fun1; dc.TextOut(20, 150, fun1); }