qt 显示 halcon图片,保存窗口图片

基础是已经添加了halcon 和qt的路径；如果没有请看前面的博客，添加路径；

qt显示图片之label

Hlong MainWndID;
HTuple  hv_Width, hv_Height;
HTuple  hv_WindowID;    

HObject himage1, ho_ROI1;
	QString str = QDir::currentPath() +"/Data/I2.bmp";
//读取图片
	HalconCpp::ReadImage(&himage1,str.toStdString().c_str());

qt  label的winid

MainWndID = (Hlong)this->ui.label->winId();
//打开窗口
OpenWindow(0, 0, ui.label->width() , ui.label->height(), MainWndID, "visible", "", &hv_WindowID);

qt 加载wind

//画一个圆
  GenCircle(&ho_ROI1, 200, 200, 90);
 //显示圆 和图片
  if (HDevWindowStack::IsOpen())
    DispObj(ho_Image, HDevWindowStack::GetActive());
  if (HDevWindowStack::IsOpen())
    DispObj(ho_ROI1, HDevWindowStack::GetActive());
//截取窗口图片
DumpWindowImage(&himage1, hv_WindowID);
//保存图片
	WriteImage(himage1, "bmp", 0, "C:/Users/mxw/Desktop/124.bmp");