// Gets the versions of the SDK's DLLs
// if the version == "" then the supporting dll is not present ----------------------------------
private void GetSDKVersions()
{
SampleCodeGraphics g;
SampleCodeMag p;
try
{
g = new SampleCodeGraphics();
_graphicsSDKVersion = g.GetSDKVersion();
p = new SampleCodeMag();
_prnSDKVersion = p.GetSDKVersion();
}
catch (Exception ex)
{
MessageBox.Show(ex.ToString(), "GetSDKVersions threw exception");
}
finally
{
g = null;
p = null;
}
}
// Submit Button
// Starts the example code based on Form selections ---------------------------------------------
private void btnSubmit_Click(object sender, EventArgs e)
{
#region Variables
bool eject = false;
string msg = "";
SampleCodeMag mag = null;
SampleCodeGraphics prn = null;
#endregion
#region Check Selections
// Verifies that a printer has been selected
try
{
if (cboPrn.SelectedIndex < 0)
{
msg = "Error: A Printer has not been selected";
return;
}
// Verifies that at least one selection is made
if (!this.cbBack.Checked && !this.cbFront.Checked && !this.cbMag.Checked)
{
msg = "Error: No Selections";
return;
}
#endregion
#region Magnetic Encoding
if (cbMag.Checked)
{
// the eject variable is set to true if neither Front or Back is selected
eject = (!this.cbBack.Checked && !this.cbFront.Checked);
// Encodes and Verifies all three Tracks
mag = new SampleCodeMag();
mag.PerformMagneticEncodeJob(this.cboPrn.Text, out msg);
if (msg != "")
{
return;
}
this.lblStatus.Text = "Magnetic Encoding : No Errors";
}
// If only magnetic encoding, eject the card
if (!this.cbFront.Checked && !this.cbBack.Checked)
{
int errValue = 0;
if (!RefreshConnectionToPrinter())
{
return;
}
int result = _thePrinterSDK.EjectCard(out errValue);
if (!CloseConnectionToPrinter())
{
return;
}
if ((result != 1) && (errValue != 0))
{
this.lblStatus.Text = "EjectCard failed. Error = " + Convert.ToString(errValue);
}
}
#endregion
#region Printing
else
{
// Initialize the Print Side Class
prn = new SampleCodeGraphics();
// Determines the printing type
if (this.cbFront.Checked && !this.cbBack.Checked)
{
prn.PrintFrontSideOnly(this.cboPrn.Text, "Front Side Text", Application.StartupPath, out msg);
if (msg == "")
{
this.lblStatus.Text = "No Errors : Front Side Only Printing";
}
}
else if (this.cbFront.Checked && this.cbBack.Checked)
{
prn.PrintBothSides(this.cboPrn.Text, "Front Side Text", "Back Side Text", Application.StartupPath, out msg);
if (msg == "")
{
this.lblStatus.Text = "No Errors : Both Side Printing";
}
}
}
}
catch (Exception ex)
{
msg += ex.Message;
MessageBox.Show(ex.ToString(), "btnSubmit_Click threw exception");
}
finally
{
if (msg != "")
{
this.lblStatus.Text = msg;
}
mag = null;
prn = null;
}
#endregion
}