CDC*pDC=GetDlgItem(ID)->GetDC(); HDC hDC=pDC->GetSafeHdc(); GetDlgItem(ID)->GetClientRect(&rect);这几句代码谁能给个比较详细的解释
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/06 17:46:02
![CDC*pDC=GetDlgItem(ID)->GetDC(); HDC hDC=pDC->GetSafeHdc(); GetDlgItem(ID)->GetClientRect(&rect);这几句代码谁能给个比较详细的解释](/uploads/image/z/11962302-6-2.jpg?t=CDC%2ApDC%3DGetDlgItem%28ID%29-%3EGetDC%28%29%3B+HDC+hDC%3DpDC-%3EGetSafeHdc%28%29%3B+GetDlgItem%28ID%29-%3EGetClientRect%28%26rect%29%3B%E8%BF%99%E5%87%A0%E5%8F%A5%E4%BB%A3%E7%A0%81%E8%B0%81%E8%83%BD%E7%BB%99%E4%B8%AA%E6%AF%94%E8%BE%83%E8%AF%A6%E7%BB%86%E7%9A%84%E8%A7%A3%E9%87%8A)
CDC*pDC=GetDlgItem(ID)->GetDC(); HDC hDC=pDC->GetSafeHdc(); GetDlgItem(ID)->GetClientRect(&rect);这几句代码谁能给个比较详细的解释
CDC*pDC=GetDlgItem(ID)->GetDC(); HDC hDC=pDC->GetSafeHdc(); GetDlgItem(ID)->GetClientRect(&rect);
这几句代码谁能给个比较详细的解释
CDC*pDC=GetDlgItem(ID)->GetDC(); HDC hDC=pDC->GetSafeHdc(); GetDlgItem(ID)->GetClientRect(&rect);这几句代码谁能给个比较详细的解释
GetDlgItem(ID) //通过资源ID获取对话框内控件的指针
CDC*pDC=GetDlgItem(ID)->GetDC(); //获取某控件的设备绘图指针
HDC hDC=pDC->GetSafeHdc(); //获取该DC指针的句柄(一般用于api函数使用)
GetDlgItem(ID)->GetClientRect(&rect);// 获取控件的坐标范围