关于对话框窗体拖动的问题

通常情况下是，按住鼠标不放，按住标题栏区域可拖动窗体，按住客户区不可以拖动窗体

通过添加如下代码，可以实现按住客户区可拖动的操作

LRESULT CTestMfcDlg::OnNcHitTest(CPoint point)

{

    UINT nHitTest=CDialogEx::OnNcHitTest(point);

    if(nHitTest==HTCLIENT)//如果是客户区

    {

        nHitTest=HTCAPTION; //则把它当成标题栏

    }

    return nHitTest;

}

通过如下代码，可改变标题栏高度

void CTestMfcDlg::OnNcCalcSize(BOOL bCalcValidRects, NCCALCSIZE_PARAMS* lpncsp)

{

    int myCaptionHeight = 50;  //标题栏高度

    int myLeftBorderWeight =10;  

    int myRightBorderWeight =10;  

    int myBottomBorderWeight =10;  

    if (bCalcValidRects)  

    {  

        CRect& rc = (CRect&)lpncsp->rgrc[0];//get the client rectangle 

        rc.top += myCaptionHeight - GetSystemMetrics(SM_CYCAPTION) - GetSystemMetrics(SM_CYDLGFRAME);  

        rc.left += myLeftBorderWeight - GetSystemMetrics(SM_CYDLGFRAME);  

        rc.bottom -= myBottomBorderWeight - GetSystemMetrics(SM_CYDLGFRAME);  

        rc.right -= myRightBorderWeight - GetSystemMetrics(SM_CYDLGFRAME);

    }  

    CDialogEx::OnNcCalcSize(bCalcValidRects,lpncsp);  

}