MFC/QT 在控件上实时显示图像
更新于2017-09-19 18:43:46
MFC/QT 获取控件句柄实时显示图像
//----------MFC获取句柄显示-------------------
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void ShowImage(IplImage* img, UINT ID) //在picture控件中显示图片的代码
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{
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CDC* pDC=GetDlgItem(ID)->GetDC();
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HDC hDC=pDC->GetSafeHdc();
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CRect rect;
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GetDlgItem(ID)->GetClientRect(&rect);
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SetRect(rect,rect.left,rect.top,rect.right,rect.bottom);
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CvvImage cimg;
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cimg.CopyOf( img );
// 复制图片
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cimg.DrawToHDC( hDC, &rect );
// 将图片绘制到显示控件的指定区域内
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ReleaseDC( pDC );
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}
//---------QT获取句柄显示-------------------------
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void resizeEvent(QResizeEvent * event)
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{
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QFrame::resizeEvent(event);
-
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QSize size = m_imageLable->size();
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SetWindowExtents(m_halWnd,
0,
0,size.width(),size.height());
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}
-
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void initHalWnd()
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{
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QSize size = m_imageLable->size();
-
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HWND parent = (HWND)m_imageLable->winId();
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OpenWindow(
0,
0,size.width(),size.height(),(Hlong)parent,
"",
"",&m_halWnd);
-
}
-
-
void onGrab()
-
{
-
QHCamera * cam = getCurCamera();
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if(cam)
-
{
-
cam->grab(&m_image);
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DispObj(m_image,m_halWnd);
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}
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}
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