public Bitmap GetBitmap()
{
m_objIGXStream.FlushQueue();
m_objIGXFeatureControl.GetCommandFeature("TriggerSoftware").Execute();
IImageData objIImageData = GetImage(500);
var bm = m_objGxBitmap.GetBitmap(objIImageData);
objIImageData.Destroy();
return((Bitmap)bm.Clone());
}
public override bool DoSoftTriggerOnce()
{
try
{
if (m_objIGXDevice == null || m_objIGXStream == null)
{
////ErrorMessage.Append("还没有打开设备。");
return(false);
}
//每次发送触发命令之前清空采集输出队列
//防止库内部缓存帧，造成本次GXGetImage得到的图像是上次发送触发得到的图
m_objIGXStream.FlushQueue();
IGXFeatureControl fc = m_objIGXDevice.GetRemoteFeatureControl();
if (fc == null)
{
////ErrorMessage.Append("获取设备控制器异常。");
return(false);
}
//发送软触发命令
fc.GetCommandFeature("TriggerSoftware").Execute();
return(true);
}
catch (Exception ex)
{
return(false);
}
}
public void OnFrameCallbackFun(object obj, IFrameData objIFrameData)
{
if (objIFrameData.GetStatus() == GxIAPINET.GX_FRAME_STATUS_LIST.GX_FRAME_STATUS_SUCCESS)
{
Mat img = null;
IntPtr pRGB24Buffer = IntPtr.Zero;
int size = (int)objIFrameData.GetHeight() * (int)objIFrameData.GetWidth() * 3;
byte[] imgdata = new byte[size];
pRGB24Buffer = objIFrameData.ConvertToRGB24(GxIAPINET.GX_VALID_BIT_LIST.GX_BIT_0_7, GxIAPINET.GX_BAYER_CONVERT_TYPE_LIST.GX_RAW2RGB_NEIGHBOUR, true);
Marshal.Copy(pRGB24Buffer, imgdata, 0, imgdata.Length);
img = new Mat((int)objIFrameData.GetHeight(), (int)objIFrameData.GetWidth(), MatType.CV_8UC3, imgdata);
Cv2.Flip(img, img, 0);
camera_img = img;
objIGXFeatureControl.GetCommandFeature("AcquisitionStop").Execute();
objIGXStream.FlushQueue();
}
}
public Bitmap GetBitmap()
{
try
{
IImageData objIImageData = null;
uint nTimeout = 500;
//每次发送触发命令之前清空采集输出队列
//防止库内部缓存帧，造成本次GXGetImage得到的图像是上次发送触发得到的图
if (null != m_objIGXStream)
{
m_objIGXStream.FlushQueue();
}
//发送软触发命令
if (null != m_objIGXFeatureControl)
{
m_objIGXFeatureControl.GetCommandFeature("TriggerSoftware").Execute();
}
//获取图像
if (null != m_objIGXStream)
{
objIImageData = m_objIGXStream.GetImage(nTimeout);
}
var bm = m_objGxBitmap.GetBitmap(objIImageData);
if (null != objIImageData)
{
//用完之后释放资源
objIImageData.Destroy();
}
return((Bitmap)bm.Clone());
}
catch (Exception ex)
{
Tool.AppLogError(ex);
//MessageBox.Show(ex.Message);
};
return(null);
}
private void Snapshot_Click(object sender, EventArgs e)
{
try
{
//1.Open Device
// Before using any GxIAPINET methods, the GxIAPINET must be initialized.
m_objIGXFactory = IGXFactory.GetInstance();
m_objIGXFactory.Init();
//open device
List <IGXDeviceInfo> listGXDeviceInfo = new List <IGXDeviceInfo>();
// Close stream
__CloseStream();
// If the device is opened then close it to ensure the camera could open again.
__CloseDevice();
// Enumerate all camera devices
m_objIGXFactory.UpdateDeviceList(200, listGXDeviceInfo);
// Check if found any device
if (listGXDeviceInfo.Count <= 0)
{
MessageBox.Show("No devices found!");
return;
}
//Open the first found device
m_objIGXDevice = m_objIGXFactory.OpenDeviceBySN(listGXDeviceInfo[0].GetSN(), GX_ACCESS_MODE.GX_ACCESS_EXCLUSIVE);
m_objIGXFeatureControl = m_objIGXDevice.GetRemoteFeatureControl();
// Open stream
if (null != m_objIGXDevice)
{
m_objIGXStream = m_objIGXDevice.OpenStream(0);
}
// It is recommended that the user set the camera's stream channel packet length value
// according to the current network environment after turning on
// the network camera to improve the collection performance of the network camera.
// For the setting method, refer to the following code.
GX_DEVICE_CLASS_LIST objDeviceClass = m_objIGXDevice.GetDeviceInfo().GetDeviceClass();
if (GX_DEVICE_CLASS_LIST.GX_DEVICE_CLASS_GEV == objDeviceClass)
{
// Determine whether the device supports the stream channel packet function.
if (true == m_objIGXFeatureControl.IsImplemented("GevSCPSPacketSize"))
{
// Get the optimal packet length value of the current network environment
uint nPacketSize = m_objIGXStream.GetOptimalPacketSize();
// Set the optimal packet length value to the stream channel packet length of the current device.
m_objIGXFeatureControl.GetIntFeature("GevSCPSPacketSize").SetValue(nPacketSize);
}
}
__InitDevice();
m_objGxBitmap = new GxBitmap(m_objIGXDevice, m_pic_ShowImage);
//2.Start acquisition
// Start stream channel acquisition
if (null != m_objIGXStream)
{
m_objIGXStream.StartGrab();
}
// Send AcquisitionStart command
if (null != m_objIGXFeatureControl)
{
m_objIGXFeatureControl.GetCommandFeature("AcquisitionStart").Execute();
}
//3.Snapshot
IImageData objIImageData = null;
double dElapsedtime = 0;
uint nTimeout = 500;
//Flush image queues to clear out-of-date images
if (null != m_objIGXStream)
{
m_objIGXStream.FlushQueue();
}
//Send TriggerSoftware commands
if (null != m_objIGXFeatureControl)
{
m_objIGXFeatureControl.GetCommandFeature("TriggerSoftware").Execute();
}
//Get image
if (null != m_objIGXStream)
{
//Start stopwatch
m_objStopTime.Start();
objIImageData = m_objIGXStream.GetImage(nTimeout);
//Stop stopwatch and get the ElapsedTime
dElapsedtime = m_objStopTime.Stop();
}
m_objGxBitmap.Show(objIImageData);
string strFileName = @"D:\TestImages\SWS.bmp";
m_objGxBitmap.SaveBmp(objIImageData, strFileName);
if (null != objIImageData)
{
// Release resource
objIImageData.Destroy();
}
//4.Stop acquisition
// Send AcquisitionStop command
if (null != m_objIGXFeatureControl)
{
m_objIGXFeatureControl.GetCommandFeature("AcquisitionStop").Execute();
}
// Stop stream channel acquisition
if (null != m_objIGXStream)
{
m_objIGXStream.StopGrab();
}
//5.Close device
// Reset statistical time count
m_objStatistic.Reset();
// close stream and device
__CloseAll();
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
}
}