private bool SetOffsets(string cardType)
{
bool offsetsSet = false;
PrinterOps prnOps = new PrinterOps();
try {
prnOps = new PrinterOps();
if (!prnOps.DiscoverUSBPrinters())
{
throw new Exception(prnOps.printerError);
}
if (!prnOps.OpenConnection())
{
prnOps = null;
throw new Exception(prnOps.printerError);
}
int max = 0;
int min = 0;
prnOps.GetSmartOffsetRange(cardType, out min, out max);
if (this.nbOffset.Value < min)
{
this.nbOffset.Value = 0;
this.nbOffset.Minimum = min;
this.nbOffset.Value = min;
}
else
{
this.nbOffset.Minimum = min;
}
if (this.nbOffset.Value > max)
{
this.nbOffset.Value = 0;
this.nbOffset.Maximum = max;
this.nbOffset.Value = max;
}
else
{
this.nbOffset.Maximum = max;
}
string offsetRange = "Offset range is " + min.ToString() + " to " + max.ToString();
System.Windows.Forms.ToolTip toolTip = new System.Windows.Forms.ToolTip();
toolTip.SetToolTip(this.nbOffset, offsetRange);
offsetsSet = true;
} catch {
} finally {
if (prnOps != null)
{
prnOps.CloseConnection();
prnOps = null;
}
}
return(offsetsSet);
}
private bool CheckForPrinter(ref string errMsg)
{
bool found = false;
try {
if (!prnOps.DiscoverUSBPrinters())
{
throw new Exception(prnOps.printerError);
}
found = true;
} catch (Exception ex) {
errMsg = ex.Message;
}
return(found);
}