初始化相機類文件

#pragma once
#include "MvCameraControl.h"
class CMvCamera
{
public:CMvCamera();~CMvCamera();//初始化相機int InitCamera();int SaveCurrentImage(CString filePath);//關閉相機void CloseCamera();//設置int SetEnumValue(IN const char* strKey, IN unsigned int nValue);// ch:執行一次Command型命令，如 UserSetSaveint CommandExecute(IN const char* strKey);public:int nRet;void* m_hDevHandle; // 初始化設備句柄為空
};

#include "pch.h"
#include "CMvCamera.h"CMvCamera::CMvCamera()
{
}CMvCamera::~CMvCamera()
{CloseCamera();if (m_hDevHandle != NULL){MV_CC_DestroyHandle(m_hDevHandle);m_hDevHandle = NULL;}
}int CMvCamera::InitCamera()
{nRet = MV_OK;m_hDevHandle = NULL;// 初始化SDKnRet = MV_CC_Initialize();if (MV_OK != nRet){AfxMessageBox(_T("初始化失敗"));return 0;}// 枚舉設備MV_CC_DEVICE_INFO_LIST stDeviceList;memset(&stDeviceList, 0, sizeof(MV_CC_DEVICE_INFO_LIST));nRet = MV_CC_EnumDevices(MV_GIGE_DEVICE | MV_USB_DEVICE, &stDeviceList);if (MV_OK != nRet){AfxMessageBox(_T("枚舉設備失敗"));return 0;}// 檢查是否找到設備if (stDeviceList.nDeviceNum > 0){for (unsigned int i = 0; i < stDeviceList.nDeviceNum; i++){MV_CC_DEVICE_INFO* pDeviceInfo = stDeviceList.pDeviceInfo[i];if (NULL == pDeviceInfo){break;}}}else{AfxMessageBox(_T("沒有找到設備"));return 0;}unsigned int nIndex = 0; // 選擇第一個設備// 創建設備句柄nRet = MV_CC_CreateHandle(&m_hDevHandle, stDeviceList.pDeviceInfo[nIndex]);if (MV_OK != nRet){AfxMessageBox(_T("創建句柄失敗"));return 0;}// 打開設備nRet = MV_CC_OpenDevice(m_hDevHandle);if (MV_OK != nRet){AfxMessageBox(_T("打開設備失敗"));return 0;}// 對于GigE相機，設置最佳包大小if (stDeviceList.pDeviceInfo[nIndex]->nTLayerType == MV_GIGE_DEVICE){int nPacketSize = MV_CC_GetOptimalPacketSize(m_hDevHandle);if (nPacketSize > 0){nRet = MV_CC_SetIntValue(m_hDevHandle, "GevSCPSPacketSize", nPacketSize);if (nRet != MV_OK){AfxMessageBox(_T("Warning: Set Packet Size fail"));return 0;}}else{AfxMessageBox(_T("Warning: Get Packet Size fail"));return 0;}}// 設置觸發模式為開啟nRet = MV_CC_SetEnumValue(m_hDevHandle, "TriggerMode", 1);if (MV_OK != nRet){AfxMessageBox(_T("Set Trigger Mode fail!"));return 0;}// 設置觸發源為軟件觸發nRet = MV_CC_SetEnumValue(m_hDevHandle, "TriggerSource", MV_TRIGGER_SOURCE_SOFTWARE);if (MV_OK != nRet){AfxMessageBox(_T("Set Trigger Source fail!"));return 0;}// 開始取流nRet = MV_CC_StartGrabbing(m_hDevHandle);if (MV_OK != nRet){AfxMessageBox(_T("Start Grabbing fail!"));return 0;}return 1; // 初始化成功}int CMvCamera::SaveCurrentImage(CString filePath) 
{MV_FRAME_OUT stOutFrame = { 0 };nRet = MV_CC_GetImageBuffer(m_hDevHandle, &stOutFrame, 1000);if (nRet != MV_OK) {AfxMessageBox(_T("獲取圖像失敗!"));return -1;}// 分配輸出緩沖區unsigned int nBufferSize = stOutFrame.stFrameInfo.nWidth * stOutFrame.stFrameInfo.nHeight * 4 + 2048;unsigned char* pImageBuf = new unsigned char[nBufferSize];MV_SAVE_IMAGE_PARAM_EX stSaveParam = { 0 };stSaveParam.pData = stOutFrame.pBufAddr;stSaveParam.nDataLen = stOutFrame.stFrameInfo.nFrameLen;stSaveParam.enPixelType = stOutFrame.stFrameInfo.enPixelType;stSaveParam.nWidth = stOutFrame.stFrameInfo.nWidth;stSaveParam.nHeight = stOutFrame.stFrameInfo.nHeight;stSaveParam.pImageBuffer = pImageBuf;stSaveParam.nBufferSize = nBufferSize;stSaveParam.enImageType = MV_Image_Jpeg;  // 優先嘗試JPEGstSaveParam.nJpgQuality = 95;stSaveParam.iMethodValue = 2;  // 最優插值nRet = MV_CC_SaveImageEx2(m_hDevHandle, &stSaveParam);if (MV_OK != nRet) {delete[] pImageBuf;MV_CC_FreeImageBuffer(m_hDevHandle, &stOutFrame);CString strError;strError.Format(_T("轉換失敗! 錯誤碼: 0x%X"), nRet);AfxMessageBox(strError);return -2;}// 保存到文件CFile file;if (!file.Open(filePath, CFile::modeCreate | CFile::modeWrite)) {delete[] pImageBuf;MV_CC_FreeImageBuffer(m_hDevHandle, &stOutFrame);AfxMessageBox(_T("創建文件失敗!"));return -3;}file.Write(pImageBuf, stSaveParam.nImageLen);file.Close();// 釋放資源delete[] pImageBuf;MV_CC_FreeImageBuffer(m_hDevHandle, &stOutFrame);return 0;
}void CMvCamera::CloseCamera()
{// ch:停止取流 | en:Stop grab imagenRet = MV_CC_StopGrabbing(m_hDevHandle);if (MV_OK != nRet){AfxMessageBox(_T("Stop Grabbing fail! \n"));}// ch:關閉設備 | Close devicenRet = MV_CC_CloseDevice(m_hDevHandle);if (MV_OK != nRet){AfxMessageBox(_T("ClosDevice fail\n"));}// ch:銷毀句柄 | Destroy handlenRet = MV_CC_DestroyHandle(m_hDevHandle);if (MV_OK != nRet){AfxMessageBox(_T("Destroy Handle fail!\n"));}m_hDevHandle = NULL;}int CMvCamera::SetEnumValue(IN const char * strKey, IN unsigned int nValue)
{return MV_CC_SetEnumValue(m_hDevHandle, strKey, nValue);
}int CMvCamera::CommandExecute(IN const char * strKey)
{return MV_CC_SetCommandValue(m_hDevHandle, strKey);
}

點擊按鈕進行軟觸發拍照顯示

void CHalconImgTestDlg::OnBnClickedGetimg()
{// 執行軟件觸發int nRet = m_oMvCamera->CommandExecute("TriggerSoftware");if (MV_OK != nRet){AfxMessageBox(_T("執行軟件觸發失敗"));return;}// 獲取圖像MV_FRAME_OUT stOutFrame = { 0 };nRet = MV_CC_GetImageBuffer(m_oMvCamera->m_hDevHandle, &stOutFrame, 1000);if (nRet != MV_OK){AfxMessageBox(_T("獲取圖像失敗!"));return;}// 轉換為Halcon圖像HalconCpp::HObject hImage;nRet = theApp.ConverMono8ToHalcon(&hImage, stOutFrame.stFrameInfo.nHeight,stOutFrame.stFrameInfo.nWidth, stOutFrame.pBufAddr);// 釋放圖像緩沖區MV_CC_FreeImageBuffer(m_oMvCamera->m_hDevHandle, &stOutFrame);if (nRet != MV_OK){AfxMessageBox(_T("轉換到Halcon圖像失敗!"));return;}// 顯示圖像HTuple hv_WindowHandle;HWND hWnd = GetDlgItem(IDC_IMG)->m_hWnd;// 檢查窗口是否已創建if (!HDevWindowStack::IsOpen()){// 創建新窗口OpenWindow(0, 0, stOutFrame.stFrameInfo.nWidth / 2, stOutFrame.stFrameInfo.nHeight / 2,(Hlong)hWnd, "visible", "", &hv_WindowHandle);HDevWindowStack::Push(hv_WindowHandle);}// 在現有窗口中顯示圖像if (HDevWindowStack::IsOpen()){DispObj(hImage, HDevWindowStack::GetActive());}
}