private void OnSnapshot(object sender, Camera.SnapshotArgs sna)
{
//
try {
if (sna.Status == Camera.SnapshotStatus.Ok)
{
//
System.IO.FileStream fs = new System.IO.FileStream(sna.Filename, System.IO.FileMode.Open, System.IO.FileAccess.Read);
System.IO.BinaryReader reader = new System.IO.BinaryReader(fs);
byte[] bytes = reader.ReadBytes((int)fs.Length);
reader.Close();
string filename = sna.Filename.Substring(this.mCamera.SnapshotFile.Directory.Length + 1);
if (Freight.FreightGateway.SaveImage(filename, bytes))
{
this.mCamera.SnapshotFile.Filename = "";
this.mCamera.ImprintCaptionString = "";
this.mCamera.Streaming = false;
this.mnuSnap.Enabled = false;
this.txtComment.Text = "";
MessageBox.Show(sna.Filename + " was saved.");
}
else
{
MessageBox.Show(sna.Filename + " was NOT saved.");
}
}
else
{
MessageBox.Show("Snapshot Error!");
}
}
catch (Exception ex) { MessageBox.Show(ex.Message); }
}
/// <summary>
/// this event is called async by the Camera object after the SnapShot method was called
/// </summary>
/// <param name="sender"></param>
/// <param name="snArgs"></param>
void IntermecCamera_SnapshotEvent(object sender, Camera.SnapshotArgs snArgs)
{
addLog("IntermecCamera_SnapshotEvent entered...");
Cursor.Current = System.Windows.Forms.Cursors.Default;
if (snArgs.Status == Camera.SnapshotStatus.Ok)
{
addLog("SnapshotEvent OK");
_fileName = snArgs.Filename;
//rename file to fixed named file
try
{
addLog("SnapshotEvent: Renaming file '" + _fileName + "' to '" + _tempFileName + "'");
System.IO.File.Move(_fileName, _tempFileName);
addLog("SnapshotEvent: File rename success");
_fileName = _tempFileName;
}
catch (Exception)
{
addLog("SnapshotEvent: File rename FAILED");
}
OnImageReady(new EventArgs());//inform about image is ready
#if STREAMING_ON
#if USEGDI
showImage(_fileName);
#endif
#endif
//the following will give Out-of-memory exceptions!
//CameraPreview.Image = new Bitmap(_fileName);
//###########################################
//System.Drawing.Bitmap _bitmap = new Bitmap(_fileName);
//Graphics g = Graphics.FromImage(new System.Drawing.Bitmap(_fileName)); //OOM exception
//g.DrawImage(this.CameraPreview.Image,
// new Rectangle(CameraPreview.Left, CameraPreview.Top, CameraPreview.Right, CameraPreview.Bottom),
// new Rectangle(0,0,480,400),
// GraphicsUnit.Pixel);// = new System.Drawing.Bitmap(_fileName);
}
else
{
System.Diagnostics.Debug.WriteLine("SnapshotEvent not OK: " + snArgs.Status.ToString());
System.Diagnostics.Debug.WriteLine("File: '" + IntermecCamera.SnapshotFile.Directory + "' '" + IntermecCamera.SnapshotFile.Filename + "'");
Cursor.Current = System.Windows.Forms.Cursors.Default;
#if USEGDI
showSnapshot(false);
#endif
}
#if STREAMING_ON
addLog("SnapshotEvent: we DO NOT SWITCH streaming");
#else
addLog("SnapshotEvent() IntermecCamera.Streaming=false...");
IntermecCamera.Streaming = false; //do not show streaming automatically
#endif
_bTakingSnapShot = false;
System.Diagnostics.Debug.WriteLine("...IntermecCamera_SnapshotEvent ended.");
}
/// <summary>
/// this event is called async by the Camera object after the SnapShot method was called
/// </summary>
/// <param name="sender"></param>
/// <param name="snArgs"></param>
void IntermecCamera_SnapshotEvent(object sender, Camera.SnapshotArgs snArgs)
{
addLog("IntermecCamera_SnapshotEvent entered...");
//Cursor.Current = System.Windows.Forms.Cursors.WaitCursor;
//as the snapshot event is fired on the end of the snapshot is ready,
//we have to set the WaitCursor before starting the snapshot
if (snArgs.Status == Camera.SnapshotStatus.Ok)
{
addLog("SnapshotEvent OK");
_fileName = snArgs.Filename;
//rename file to fixed named file
try
{
//first delete a possibly exisiting file, otherwise File.Move will fail with UnauthorizedAccess
try
{
if (System.IO.File.Exists(_tempFileName))
{
System.IO.File.Delete(_tempFileName);
}
}
catch (Exception ex)
{
addLog("SnapshotEvent: Deleting file '" + _tempFileName + "' FAILED: " + ex.Message);
}
addLog("SnapshotEvent: Renaming file '" + _fileName + "' to '" + _tempFileName + "'");
System.IO.File.Move(_fileName, _tempFileName);
addLog("SnapshotEvent: File rename success");
_fileName = _tempFileName;
}
catch (Exception ex)
{
addLog("SnapshotEvent: File rename FAILED: " + ex.Message);
}
OnImageReady(new EventArgs());//inform about image is ready
#if STREAMING_ON
showImage(_fileName);
#endif
//the following will give Out-of-memory exceptions!
//CameraPreview.Image = new Bitmap(_fileName);
//###########################################
//System.Drawing.Bitmap _bitmap = new Bitmap(_fileName);
//Graphics g = Graphics.FromImage(new System.Drawing.Bitmap(_fileName)); //OOM exception
//g.DrawImage(this.CameraPreview.Image,
// new Rectangle(CameraPreview.Left, CameraPreview.Top, CameraPreview.Right, CameraPreview.Bottom),
// new Rectangle(0,0,480,400),
// GraphicsUnit.Pixel);// = new System.Drawing.Bitmap(_fileName);
}
else //Camera.SnapshotStatus.Ok
{
System.Diagnostics.Debug.WriteLine("SnapshotEvent not OK: " + snArgs.Status.ToString());
System.Diagnostics.Debug.WriteLine("File: '" + IntermecCamera.SnapshotFile.Directory + "' '" + IntermecCamera.SnapshotFile.Filename + "'");
showSnapshot(false); //show preview
}
#if STREAMING_ON
addLog("SnapshotEvent: we DO NOT SWITCH streaming");
#else
addLog("SnapshotEvent() IntermecCamera.Streaming=false...");
IntermecCamera.Streaming = false; //do not show streaming automatically
#endif
_bTakingSnapShot = false;
_bInDeltaProcessing = false;
_bLastState = false; //enable OnState processing
System.Diagnostics.Debug.WriteLine("...IntermecCamera_SnapshotEvent ended.");
Cursor.Current = Cursors.Default; //snapshot event
}