關(guān)于對話框窗體拖動的問題

發(fā)布時間：2020-04-11 09:17:22 來源：網(wǎng)絡(luò) 閱讀：315 作者：boyka3721 欄目：開發(fā)技術(shù)

通常情況下是，按住鼠標(biāo)不放，按住標(biāo)題欄區(qū)域可拖動窗體，按住客戶區(qū)不可以拖動窗體

通過添加如下代碼，可以實現(xiàn)按住客戶區(qū)可拖動的操作

LRESULT CTestMfcDlg::OnNcHitTest(CPoint point)

{

UINT nHitTest=CDialogEx::OnNcHitTest(point);

if(nHitTest==HTCLIENT)//如果是客戶區(qū)

{

nHitTest=HTCAPTION; //則把它當(dāng)成標(biāo)題欄

}

return nHitTest;

}

通過如下代碼，可改變標(biāo)題欄高度

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

{

int myCaptionHeight = 50; //標(biāo)題欄高度

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);

}

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