private bool ConnectToPrinter(ref ZXPSampleCode z, ref Job job, string deviceName)
{
try
{
if (!z.Connect(ref job))
{
Cursor.Current = Cursors.Default;
MessageBox.Show("Unable to open device [" + deviceName + "]");
DisconnectFromPrinter(ref z, ref job);
}
else
{
return(true);
}
}
catch (Exception ex)
{
MessageBox.Show("ConnectToPrinter threw exception: " + ex.Message);
}
return(false);
}
private void btnConnectToPrinter_Click(object sender, EventArgs e)
{
ZXPSampleCode z = null;
Job job = null;
try
{
Cursor = Cursors.WaitCursor;
btnRun.Enabled = false;
lbStatus.Visible = true;
lbStatus.Text = "Connecting to printer";
Refresh();
Application.DoEvents();
job = new Job();
z = new ZXPSampleCode(this.cboPrn.Text);
if (z.Connect(ref job))
{
// Displays versions
this.lblVersions.Text = z.GetVersions();
if (!z.IsZXP7)
{
// Loads card types based on type of sample type
_cardTypeList = new ArrayList();
CardTypesInit(ref z, this.cboPrn.Text);
cboCardTypeInit();
}
else
{
cboCardType.Enabled = false;
}
btnRun.Enabled = true;
}
else
{
MessageBox.Show("Could not open connection to printer " + cboPrn.Text, "Warning");
}
}
catch (Exception ex)
{
MessageBox.Show("btnConnectToPrinter_Click exception: " + ex.Message);
}
finally
{
if (z != null)
{
z.Disconnect(ref job);
}
z = null;
lbStatus.Visible = false;
Cursor = Cursors.Default;
}
}