An unhandled exception of type 'System.Reflection.TargetInvocationException' occurred in mscorlib.dll Additional information: Exception has been thrown by the target of an invocation.
private void button1_Click(object sender, EventArgs e)
{
if (_worker != null && _worker.IsBusy)
{
return;
}
_worker = new BackgroundWorker
{
WorkerReportsProgress = true,
WorkerSupportsCancellation = true
};
_worker.DoWork += workerDoWork;
_worker.ProgressChanged += workerProgressChanged;
_worker.RunWorkerCompleted += workerRunWorkerCompleted;
_worker.RunWorkerAsync();
} private void workerDoWork(object sender, DoWorkEventArgs e)
{
//var interval = (int)(1000 / _capture.Fps);
Image image;
while ((image = _capture.QueryFrame().ToBitmap()) != null &&
_worker != null && !_worker.CancellationPending)
{
_worker.ReportProgress(0, image);
//Thread.Sleep(interval);
Thread.Sleep(10);
}
}
private void workerProgressChanged(object sender, ProgressChangedEventArgs e)
{
var image = e.UserState as Image;
if (image == null) return;
//Cv.Not(image, image);
//_pictureBoxIpl1.RefreshIplImage(image);
//_pictureBoxIpl1.Image=image;
_pictureBoxIpl1.Invoke(new EventHandler(delegate
{
_pictureBoxIpl1.Image = image;
}));
}
private void workerRunWorkerCompleted(object sender, RunWorkerCompletedEventArgs e)
{
_worker.Dispose();
_worker = null;
} public void Application_Idle(object sender, EventArgs e)
{
if (_capture != null)
{
try
{
frame = _capture.QueryFrame();
Pic.Image = frame.ToBitmap();
//frame.ToBitmap(dst: (Bitmap)Pic.Image);
}
catch (NullReferenceException excpt)
{
MessageBox.Show(excpt.Message);// you can also show any suitable message
}
}
} iplImage.ToBitmap(dst: (Bitmap)pictureBox.Image);