PrinterStatusView.xaml.cs
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/***********************************************
* CONFIDENTIAL AND PROPRIETARY
*
* The source code and other information contained herein is the confidential and exclusive property of
* ZIH Corp. and is subject to the terms and conditions in your end user license agreement.
* This source code, and any other information contained herein, shall not be copied, reproduced, published,
* displayed or distributed, in whole or in part, in any medium, by any means, for any purpose except as
* expressly permitted under such license agreement.
*
* Copyright ZIH Corp. 2018
*
* ALL RIGHTS RESERVED
***********************************************/
using System;
using System.Collections.Generic;
using System.Text;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Controls;
using Zebra.Sdk.Comm;
using Zebra.Sdk.Printer;
using Zebra.Windows.DevDemo.Utils;
using ZebraPrinterStatus = Zebra.Sdk.Printer.PrinterStatus;
namespace Zebra.Windows.DevDemo.Demos.PrinterStatus {
/// <summary>
/// Interaction logic for PrinterStatusView.xaml
/// </summary>
public partial class PrinterStatusView : UserControl {
public PrinterStatusView() {
InitializeComponent();
}
private void GetPrinterStatus() {
Connection printerConnection = null;
Task.Run(() => {
try {
printerConnection = connectionSelector.GetConnection();
printerConnection.Open();
ZebraPrinter printer = ZebraPrinterFactory.GetInstance(printerConnection);
ZebraPrinterLinkOs linkOsPrinter = ZebraPrinterFactory.CreateLinkOsPrinter(printer);
ZebraPrinterStatus status = (linkOsPrinter != null) ? linkOsPrinter.GetCurrentStatus() : printer.GetCurrentStatus();
string[] printerStatusString = new PrinterStatusMessages(status).GetStatusMessage();
List<string> printerStatusPrefix = GetPrinterStatusPrefix(status);
StringBuilder sb = new StringBuilder();
foreach (string s in printerStatusPrefix) {
sb.AppendLine(s);
}
foreach (string s in printerStatusString) {
sb.AppendLine(s);
}
Application.Current.Dispatcher.Invoke(() => {
printerStatus.Text = sb.ToString();
});
} catch (ConnectionException e) {
MessageBoxCreator.ShowError(e.Message, "Connection Error");
} catch (ZebraPrinterLanguageUnknownException e) {
MessageBoxCreator.ShowError(e.Message, "Connection Error");
} finally {
if (printerConnection != null) {
try {
printerConnection.Close();
} catch (ConnectionException) {
} finally {
SetTestButtonState(true);
}
} else {
SetTestButtonState(true);
}
}
});
}
private List<string> GetPrinterStatusPrefix(ZebraPrinterStatus printerStatus) {
bool ready = printerStatus != null ? printerStatus.isReadyToPrint : false;
string readyString = "Printer " + (ready ? "ready" : "not ready");
string labelsInBatch = "Labels in batch: " + Convert.ToString(printerStatus.labelsRemainingInBatch);
string labelsInRecvBuffer = "Labels in buffer: " + Convert.ToString(printerStatus.numberOfFormatsInReceiveBuffer);
return new List<string> { readyString, labelsInBatch, labelsInRecvBuffer };
}
private void GetPrinterStatusButton_Click(object sender, RoutedEventArgs e) {
try {
SetTestButtonState(false);
GetPrinterStatus();
} catch (Exception ex) {
MessageBoxCreator.ShowError(ex.Message, "Printer Status Error");
}
}
private void SetTestButtonState(bool state) {
Application.Current.Dispatcher.Invoke(() => {
getPrinterStatusButton.IsEnabled = state;
});
}
}
}