Question

VC/MFC 无边框鼠标拉伸改变窗口大小

求一个鼠标拖拽改变无边框窗口 NONE不同方向的事例！

Answer 1

这里有个 反 例，参考。
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;
}