public static Status SetBackPosition(BlackPosition pos, int len)
{
if (!IsUse)
{
return(Status.SUCC);
}
try
{
Status nRet = (Status)EpsonSetBlackMark(pos, len);
if (nRet != Status.SUCC)
{
AppLog.Write("[InvoicePrinter][SetBackPosition]" + nRet.ToString(), AppLog.LogMessageType.Warn);
}
return(nRet);
}
catch (System.Exception e)
{
AppLog.Write("[InvoicePrinter][SetBackPosition]Error!\n" + e.ToString(), AppLog.LogMessageType.Error);
return(Status.FAIL);
}
}
protected static extern int EpsonSetBlackMark(BlackPosition position, int len);