void MyTestDialog::DrawPicToHDC(cv::Mat& img, UINT ID)
{
//清空
CStatic* pStatic = (CStatic*)GetDlgItem(ID);
pStatic->SetBitmap(NULL);
CRect rect;
pStatic->GetClientRect(&rect);
pStatic->GetDC()->FillSolidRect(rect.left ,rect.top ,rect.Width(),rect.Height(), RGB(240, 240, 240));
////
CDC* pDC = GetDlgItem(ID)->GetDC();
HDC hDC = pDC->GetSafeHdc();
//调整大小
////////
float widthRatio = (float)rect.Width() / img.cols;
float heightRatio = (float)rect.Height() / img.rows;
float resRatio = widthRatio < heightRatio ? widthRatio: heightRatio;
int resWidth = img.cols * resRatio;
int resHeight = img.rows * resRatio;
cv::resize(img, img, cv::Size(resWidth, resHeight));
CRect drawRect;
drawRect.SetRect(rect.TopLeft().x, rect.TopLeft().y, rect.TopLeft().x + img.cols - 1, rect.TopLeft().y + img.rows - 1);
///////
IplImage* tmpimg = &img.operator IplImage();
CvvImage iimg;
iimg.CopyOf(tmpimg);
iimg.DrawToHDC(hDC, &drawRect);
ReleaseDC(pDC);
iimg.Destroy();
}
void CMainFrame::UpdateCursorInfoStatus()
{
CStatic* pDrawingArea = (CStatic*)m_pView->GetDlgItem(IDC_IMAGEAREA);
if (pDrawingArea == NULL)
{
return;
}
CString status;
int x,y=0;
m_pView->GetPixelPositionFromImage(&x,&y);
CPoint dcPoint;
CDC* pDC = pDrawingArea->GetDC();
// Fix for Bug 20448
if(pDC == NULL)
{
return;
}
HDC hdc = pDC->GetSafeHdc();
if(hdc == NULL)
{
return;
}
GetCursorPos(&dcPoint);
pDrawingArea->ScreenToClient(&dcPoint);
COLORREF cr = pDC->GetPixel( dcPoint );
m_pView->ReleaseDC( pDC );
if( this == GetActiveWindow() &&
x != -1 && y != -1 )
{
status.Format(
"Cursor: (%d,%d) | RGB: (%u,%u,%u)",
x,
y,
cr & 0xFF,
(cr & 0xFF00) >> 8,
(cr & 0xFF0000) >> 16 );
}
