Hi All,
I'm a newbie to the POS system. so please mind if my questions are stupid.
I have an epson TM-U200 printer with USB connection and cash drawer connected to printer with RJ 11 cable.
I tried to create a service object for my printer and suceeds.(It shows on test app as a POS Printer)
this is my code for that.
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[HardwareId(@"USB\Vid_0525&Pid_a700",@"USB\Vid_0525&Pid_a700")]
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[ServiceObject(DeviceType.PosPrinter,"PrinterTemplate","Printer Class",1,9)]
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public class MyPrinter : PosPrinterBase
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{ private string MyHealthText;
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public MyPrinter()
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{
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// Initialize device capability properties.
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MyHealthText = "";
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}
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~MyPrinter()
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{
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Dispose(false);
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}
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// Release any resources managed by this object.
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protected override void Dispose(bool disposing)
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{
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try
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{
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// Your code here.
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}
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finally
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{
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// Must call base class Dispose.
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base.Dispose(disposing);
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}
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}
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#region PosCommon overrides
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// Returns the result of the last call to CheckHealth().
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public override string CheckHealthText
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{
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get
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{
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// MsrBasic.VerifyState(mustBeClaimed,
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// mustBeEnabled). This may throw an exception.
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VerifyState(false, false);
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return MyHealthText;
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}
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}
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public override string CheckHealth(
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HealthCheckLevel level)
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{
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// Verify that device is open, claimed, and enabled.
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VerifyState(true, true);
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// Your code here:
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// check the health of the device and return a
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// descriptive string.
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// Cache result in the CheckHealthText property.
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MyHealthText = "Ok";
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return MyHealthText;
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}
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public override DirectIOData DirectIO(
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int command,
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int data,
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object obj)
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{
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// Verify that device is open.
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VerifyState(false, false);
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return new DirectIOData(data, obj);
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}
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#endregion // PosCommon overrides
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protected override PrintResults PrintNormalImpl(PrinterStation station, PrinterState printerState, string data)
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{
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throw new Exception("The method or operation is not implemented.");
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}
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protected override void ValidateDataImpl(PrinterStation station, string data)
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{
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throw new Exception("The method or operation is not implemented.");
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}
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}
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I register this with posdm in the name "Printer"
This is my application.
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PosExplorer ex = new PosExplorer();
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DeviceInfo d = ex.GetDevice(DeviceType.PosPrinter, "Printer");
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PosPrinter printer = (PosPrinter)ex.CreateInstance(d);
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printer.Open();
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printer.Claim(1000);
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printer.DeviceEnabled = true;
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//printer.PrintNormal(PrinterStation.Receipt, "SSSSSS");
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printer.Release();
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printer.Close();
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this PrintNormal method giving me an error saying "The receipt station is not present". I cannot figure it out. Please help me on this.
and if I want to open the cash drawer, can I use the printnormal method for that. something like "printer.PrintNormal(PrinterStation.Receipt, "ESC /27,112,0,25,250");"
I'm really confused.
