1.开发环境qt6，编译器MSCV2019，网络是halcon的对象检测，halcon用20.
2.建立qt项目
3.到halcon安装目录下复制include,lib这两个文件夹到qt项目中进行引用


4.引用到halcon静态库后，到halcon运行目录下找到静态库对应dll文件，还有引用深度学习的halcondl.dll跟halcondlxl.dll，hcanvas.dll

5.找齐这些文件后，把文件复制到qt软件运行目录下

6.到halcon运行目录下复制thirdparty文件夹到qt运行目录，不然软件运行时，halcon查找设备只能找到cpu，找不到gpu。
7.qt中加载halcon模型代码

void DeelLearning::ReadModel(QString path_model_,
                             QString path_proparameter_)
{
    try
    {
        _path_model="";
        _path_model_proparameter="";

        if(_exit_model==true)
        {
            HalconCpp::ClearDlModel(_dl_model_handle);
            HalconCpp::ClearHandle(_dl_device_handles);
        }

        _exit_model=false;
        /***读取模型预处理参数***/
        HalconCpp::HTuple hpath_proparameter_;
        hpath_proparameter_ = path_proparameter_.toStdString().c_str();

        HalconCpp::ReadDict(hpath_proparameter_,
                            HalconCpp::HTuple(),
                            HalconCpp::HTuple(),
                            & this->_dl_model_proparameter);

        /***读取模型***/
        HalconCpp::HTuple hpath_model_=path_model_.toStdString().c_str();

        HalconCpp::ReadDlModel(hpath_model_,&this->_dl_model_handle);

        /***读取驱动***/
        HalconCpp::HTuple gen_param_name_devices_,
            gen_param_value_devices_;
        gen_param_name_devices_[0]="runtime";
        gen_param_name_devices_[1]="runtime";
        gen_param_value_devices_[0]="gpu";
        gen_param_value_devices_[1]="cpu";
        HalconCpp::QueryAvailableDlDevices(gen_param_name_devices_,
                                           gen_param_value_devices_,
                                           &_dl_device_handles);

        int dl_device_handles_count_=_dl_device_handles.Length();

        qDebug() << "dl_device_handles_count"+QString::number(dl_device_handles_count_);

        HalconCpp::HTuple dl_device_type_="";
        HalconCpp::GetDlDeviceParam(_dl_device_handles[0],
                                    "type",
                                    &dl_device_type_);
        /***提示下当前变量***/
        qDebug() << dl_device_type_.ToString().Text();

        /***设置模型驱动***/
        HalconCpp::SetDlModelParam(_dl_model_handle,
                                    "device",
                                    _dl_device_handles[0]);
        /***设置模型批量***/
        HalconCpp::SetDlModelParam(this->_dl_model_handle,
                                    "batch_size",
                                    1);
        _exit_model=true;

        _path_model=path_model_;
        _path_model_proparameter=path_proparameter_;

    }
    catch (HalconCpp::HException ex)
    {
        qDebug()<<ex.ErrorMessage().Text();
    }
}

8.qt中推理代码

void DeelLearning::AnalyzeImage()
{
    if(_exit_image==true&&_exit_model==true)
    {
        HalconCpp::HTuple pro_image_width_,
            pro_image_height_,
            pro_image_num_channels_,
            pro_image_range_min_,
            pro_image_range_max_,
            pro_image_normalization_type_,
            pro_image_domain_handling_;

        /***获取预处理参数***/
        HalconCpp::GetDictTuple(this->_dl_model_proparameter,
                                "image_width",
                                &pro_image_width_);
        qDebug() << pro_image_width_.ToString().Text();

        HalconCpp::GetDictTuple(this->_dl_model_proparameter,
                                "image_height",
                                &pro_image_height_);
        qDebug() << pro_image_height_.ToString().Text();

        HalconCpp::GetDictTuple(this->_dl_model_proparameter,
                                "image_num_channels",
                                &pro_image_num_channels_);
        qDebug() << pro_image_num_channels_.ToString().Text();

        HalconCpp::GetDictTuple(this->_dl_model_proparameter,
                                "image_range_min",
                                &pro_image_range_min_);
        qDebug() << pro_image_range_min_.ToString().Text();

        HalconCpp::GetDictTuple(this->_dl_model_proparameter,
                                "image_range_max",
                                &pro_image_range_max_);
        qDebug() << pro_image_range_max_.ToString().Text();

        /*****预处理图片****/
        HalconCpp::HTuple dl_sample_batch_;
        HalconCpp::CreateDict(&dl_sample_batch_);

        HalconCpp::ConvertImageType(this->_image,
                                    &this->_image,
                                    "real");

        HalconCpp::ZoomImageSize(this->_image,
                                 &this->_image,
                                 pro_image_width_,
                                 pro_image_height_,
                                 "constant");

        HalconCpp::HTuple rescale_range=(pro_image_range_max_
                                           -pro_image_range_min_)/255;

        HalconCpp::ScaleImage(this->_image,
                              &this->_image,
                              rescale_range,
                              pro_image_range_min_);

        HalconCpp::SetDictObject(this->_image,
                                 dl_sample_batch_,
                                 "image");

        HalconCpp::HTuple dl_result_batch_;
        HalconCpp::ApplyDlModel(_dl_model_handle,
                                dl_sample_batch_,
                                HalconCpp::HTuple(),
                                &dl_result_batch_);

        HalconCpp::GetDictTuple(dl_result_batch_,
                                "bbox_row1",
                                &_bbox_row1);

        HalconCpp::GetDictTuple(dl_result_batch_,
                                "bbox_col1",
                                &_bbox_col1);

        HalconCpp::GetDictTuple(dl_result_batch_,
                                "bbox_row2",
                                &_bbox_row2);

        HalconCpp::GetDictTuple(dl_result_batch_,
                                "bbox_col2",
                                &_bbox_col2);

        HalconCpp::GetDictTuple(dl_result_batch_,
                                "bbox_class_id",
                                &_bbox_class_id);

        HalconCpp::GetDictTuple(dl_result_batch_,
                                "bbox_class_name",
                                &_bbox_class_name);

        HalconCpp::GetDictTuple(dl_result_batch_,
                                "bbox_confidence",
                                &_bbox_class_confidence);
    }
}