GetWindowRect和GetClientRect及ScreenToClient,ClientToScree的关系

转发自：https://www.cnblogs.com/chenchenluo/archive/2012/10/08/2715586.html

新建一个基于对话框的MFC的exe程序：

删除对话框的所有按钮，并添加一个test按钮，添加一个Static控件，ID为IDC_STATIC：

双击test按钮，在响应函数中添加以下代码：

 1 void CTestMapDlg::OnBtnTest() 
 2 {
 3     // TODO: Add your control notification handler code here
 4     CRect rect;
 5     CString str;
 6     
 7     CWnd* pStatic = (CWnd*) GetDlgItem(IDC_STATIC);
 8 
 9     pStatic->GetWindowRect(&rect);
10     str.Format("In GetWindowRect: rect.left = %d, rect.top = %d, rect.right = %d, rect.bottom = %d",
11             rect.left, rect.top, rect.right, rect.bottom);
12     MessageBox(str);
13 
14     pStatic->ScreenToClient(&rect);
15     str.Format("In GetWindowRect and after ScreenToClient: rect.left = %d, rect.top = %d, rect.right = %d, rect.bottom = %d",
16             rect.left, rect.top, rect.right, rect.bottom);
17     MessageBox(str);
18 
19     pStatic->GetClientRect(&rect);
20     str.Format("In GetClientRect: rect.left = %d, rect.top = %d, rect.right = %d, rect.bottom = %d",
21             rect.left, rect.top, rect.right, rect.bottom);         MessageBox(str);
22 
23     pStatic->ClientToScreen(&rect);
24     str.Format("In  GetClientRect and after ClientToScreen: rect.left = %d, rect.top = %d, rect.right = %d, rect.bottom = %d",
25             rect.left, rect.top, rect.right, rect.bottom);
26     MessageBox(str);
27 }