private void butOpen_Click(object sender, EventArgs e)
{
int CamNum = 0;
//获取相机个数
MVSTATUS_CODES r = MVGigE.MVGetNumOfCameras(out CamNum);
if (CamNum == 0)
{
MessageBox.Show("没有找到相机，请确认连接和相机IP设置");
return;
}
//打开第0个相机
r = MVGigE.MVOpenCamByIndex(0, out m_hCam);
if (m_hCam == IntPtr.Zero)
{
if (r == MVSTATUS_CODES.MVST_ACCESS_DENIED)
{
MessageBox.Show("无法打开相机，可能正被别的软件控制");
return;
}
}
int w, h;
//获取图像宽
r = MVGigE.MVGetWidth(m_hCam, out w);
if (CamNum == 0)
{
MessageBox.Show("取得图像宽度失败");
return;
}
//获取图像高
r = MVGigE.MVGetHeight(m_hCam, out h);
if (CamNum == 0)
{
MessageBox.Show("取得图像高度失败");
return;
}
//获取图像像素格式
r = MVGigE.MVGetPixelFormat(m_hCam, out m_PixelFormat);
if (CamNum == 0)
{
MessageBox.Show("取得图像颜色模式失败");
return;
}
//创建图像
if (m_PixelFormat == MVAPI.MV_PixelFormatEnums.PixelFormat_Mono8)
{
m_hImage = MVAPI.MVImage.MVImageCreate(w, h, 8);
}
else
{
m_hImage = MVAPI.MVImage.MVImageCreate(w, h, 24);
}
this.butOpen.Enabled = false;
this.butGrab.Enabled = true;
this.butClose.Enabled = false;
}
private void butClose_Click(object sender, EventArgs e)
{
//停止连续采集
MVGigE.MVStopGrab(m_hCam);
//关闭相机
MVGigE.MVCloseCam(m_hCam);
this.butOpen.Enabled = true;
this.butGrab.Enabled = false;
this.butClose.Enabled = false;
m_bRun = false;
}
private void MV_E_EM_FormClosing(object sender, FormClosingEventArgs e)
{
if (m_bRun)
{
//停止采集
MVGigE.MVStopGrab(m_hCam);
}
if (!this.butOpen.Enabled)
{
//关闭相机
MVGigE.MVCloseCam(m_hCam);
}
//释放相机资源
MVGigE.MVTerminateLib();
}
int StreamCB(ref MVAPI.IMAGE_INFO pInfo, IntPtr UserVal)
{
//将原始帧转化为m_hImage图像格式
MVGigE.MVInfo2Image(m_hCam, ref pInfo, m_hImage);
pictureBox1.Image = ImageData2Bitmap(m_hImage);
Bitmap remd = new Bitmap(pictureBox1.Image);
BarcodeReader reader = new BarcodeReader();
reader.Options.CharacterSet = "UTF-8";
Result result = reader.Decode((remd));
if (result != null)
{
MessageBox.Show(result.ToString());
}
//DrawImage();
return(0);
}
private void butGrab_Click(object sender, EventArgs e)
{
MVAPI.TriggerModeEnums mode;
//获取相机触发模式
MVGigE.MVGetTriggerMode(m_hCam, out mode);
//如果相机不是连续采集模式
if (mode != MVAPI.TriggerModeEnums.TriggerMode_Off)
{
//设置相机为连续采集模式
MVGigE.MVSetTriggerMode(m_hCam, MVAPI.TriggerModeEnums.TriggerMode_Off);
}
//为StreamCBDelegate委托注册StreamCB方法
StreamCBDelegate += new MVAPI.MV_SNAPPROC(StreamCB);
//开始采集
MVSTATUS_CODES r = MVGigE.MVStartGrab(m_hCam, StreamCBDelegate, this.Handle);
this.butOpen.Enabled = false;
this.butGrab.Enabled = false;
this.butClose.Enabled = true;
m_bRun = true;
}
private void MV_E_EM_Load(object sender, EventArgs e)
{
MVSTATUS_CODES r;
//函数库初始化
r = MVGigE.MVInitLib();
if (r != MVSTATUS_CODES.MVST_SUCCESS)
{
MessageBox.Show("函数库初始化失败！");
return;
}
//查找连接计算机的相机
r = MVGigE.MVUpdateCameraList();
if (r != MVSTATUS_CODES.MVST_SUCCESS)
{
MessageBox.Show("查找连接计算机的相机失败！");
return;
}
this.butOpen.Enabled = true;
this.butGrab.Enabled = false;
this.butClose.Enabled = false;
}