禁止对话框(窗口)的大小改变和移动

一、禁止对话框的移动

(1)、第一种方法

为这个对话框添加系统消息过虑处理：

.h中：

...

afx_msg void OnSysCommand(UINT nID, LPARAM lParam);

...

.cpp中

BEGIN_MESSAGE_MAP(CXXXDlg, CDialog)

...

ON_WM_SYSCOMMAND()

...

END_MESSAGE_MAP()

void CXXXDlg::OnSysCommand(UINT nID, LPARAM lParam)

{

if (nID == SC_MOVE || nID==0xF012)

return;

else

CDialog::OnSysCommand(nID, lParam);

}

SC_MOVE就是0xF010。

参考帖子：http://topic.csdn.net/t/20020821/12/957952.html

(2)、第二种方法

.h中：

...

afx_msg UINT OnNcHitTest(CPoint point);

...

.cpp中

BEGIN_MESSAGE_MAP(CXXXDlg, CDialog)

...

ON_WM_NCHITTEST()

...

END_MESSAGE_MAP()

UINT CXXXDlg::OnNcHitTest(CPoint point)

{

int ret = CDialog::OnNcHitTest(point);

if( HTCAPTION == ret)

return HTCLIENT;

return ret;

}

二、禁止对话框改变大小

.h中：

...

afx_msg UINT OnNcHitTest(CPoint point);

...

.cpp中

BEGIN_MESSAGE_MAP(CXXXDlg, CDialog)

...

ON_WM_NCHITTEST()

...

END_MESSAGE_MAP()

UINT CXXXDlg::OnNcHitTest(CPoint point)

{

int ret = CDialog::OnNcHitTest(point);

//if语句的前两行是用来禁止改变大小的，最后一行是用来禁止移动的

if(HTTOP == ret || HTBOTTOM == ret || HTLEFT == ret || HTRIGHT == ret

|| HTBOTTOMLEFT == ret || HTBOTTOMRIGHT == ret || HTTOPLEFT == ret || HTTOPRIGHT == ret || HTCAPTION == ret)

return HTCLIENT;

return ret;

}

参考帖子：http://web.newsfan.net/showpost.php?p=594616