public bool OneShot()
{
try
{
bGrabDone = false;
if (m_imageProvider.IsOpen)
{
m_imageProvider.OneShot();
}
DateTime st_time = DateTime.Now;
TimeSpan time_span;
while (!bGrabDone)
{
Thread.Sleep(5);
Application.DoEvents();
time_span = DateTime.Now - st_time;
if (time_span.TotalMilliseconds > 800)
{
bGrabDone = true;
return(false);
}
}
return(true);
}
catch (Exception)
{
//ShowException(e, m_imageProvider.GetLastErrorMessage());
}
return(true);
}
/* Starts the grabbing of one image and handles exceptions. */
private void OneShot()
{
try
{
m_imageProvider.OneShot(); /* Starts the grabbing of one image. */
}
catch (Exception e)
{
ShowException(e, m_imageProvider.GetLastErrorMessage());
}
}
/// <summary>
/// Grabs a single image from ImageProvider.
/// </summary>
public void OneShot()
{
try {
ImageProvider.OneShot();
}
catch (Exception ex) {
log.Fatal("ERROR while single shotting on device with Index " + Index);
log.Fatal("Device Info: " + FullName);
log.Fatal("Exception: " + ex.ToString());
OnErrorReceived?.Invoke(this, ex);
}
}
/// <summary>
/// Start the device for a frame grab, wait a bit and then return the result.
/// This method MUST raise a CameraThumbnailProduced event, even in case of error.
/// </summary>
public void Run(object data)
{
log.DebugFormat("Starting {0} for thumbnail.", summary.Alias);
if (!imageProvider.IsOpen)
{
Thread.Sleep(timeoutOpening);
}
if (!imageProvider.IsOpen)
{
if (CameraThumbnailProduced != null)
{
CameraThumbnailProduced(this, new CameraThumbnailProducedEventArgs(summary, null, imageDescriptor, true, false));
}
return;
}
try
{
imageProvider.OneShot();
//imageProvider.ContinuousShot();
}
catch (Exception e)
{
LogError(e, imageProvider.GetLastErrorMessage());
}
waitHandle.WaitOne(timeoutGrabbing, false);
lock (locker)
{
if (!cancelled)
{
imageProvider.GrabErrorEvent -= imageProvider_GrabErrorEvent;
imageProvider.DeviceRemovedEvent -= imageProvider_DeviceRemovedEvent;
imageProvider.ImageReadyEvent -= imageProvider_ImageReadyEvent;
Stop();
Close();
}
}
if (CameraThumbnailProduced != null)
{
CameraThumbnailProduced(this, new CameraThumbnailProducedEventArgs(summary, image, imageDescriptor, hadError, cancelled));
}
}
//拍摄单张图片
public void OneShot()
{
Finish = false;
m_imageProvider.OneShot(); /* Starts the grabbing of one image. */
}
