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1 files changed, 121 insertions, 0 deletions

diff --git a/print/v4PrintDriverSamples/PrinterExtensionSample/PrinterExtensionLibrary/PrinterExtensionManager.cs b/print/v4PrintDriverSamples/PrinterExtensionSample/PrinterExtensionLibrary/PrinterExtensionManager.cs
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+++ b/print/v4PrintDriverSamples/PrinterExtensionSample/PrinterExtensionLibrary/PrinterExtensionManager.cs
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+// THIS CODE AND INFORMATION IS PROVIDED "AS IS" WITHOUT WARRANTY OF
+// ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED TO
+// THE IMPLIED WARRANTIES OF MERCHANTABILITY AND/OR FITNESS FOR A
+// PARTICULAR PURPOSE.
+//
+// Copyright (c) Microsoft Corporation. All rights reserved
+//
+//
+// Abstract:
+//
+//     This file contains an Adapter that wrap the PrinterExtensionManager COM Interop type.
+//
+using System;
+using System.IO;
+using System.Collections;
+using System.Collections.Generic;
+using System.Runtime;
+using System.Runtime.InteropServices;
+using Microsoft.Samples.Printing.PrinterExtension.Types;
+
+namespace Microsoft.Samples.Printing.PrinterExtension
+{
+    public class PrinterExtensionManager
+    {
+        public PrinterExtensionManager()
+        {
+            _manager = new PrinterExtensionLib.PrinterExtensionManager();
+        }
+
+        #region IPrinterExtensionManager methods
+
+        /// <summary>
+        /// Maps to COM IPrinterExtensionManager::DisableEvents
+        /// </summary>
+        public void DisableEvents()
+        {
+            _manager.DisableEvents();
+        }
+
+        /// <summary>
+        /// Maps to COM IPrinterExtensionManager::EnableEvents
+        /// </summary>
+        public void EnableEvents(Guid printerDriverId)
+        {
+            _manager.EnableEvents(printerDriverId);
+        }
+
+        /// <summary>
+        /// Maps to COM IPrinterExtensionEvent::OnDriverEvent
+        /// </summary>
+        public event EventHandler<PrinterExtensionEventArgs> OnDriverEvent
+        {
+            add
+            {
+                if (_onDriverEvent == null)
+                {
+                    _manager.OnDriverEvent += OnDriverEventReceiver;
+                }
+                _onDriverEvent += value;
+            }
+            remove
+            {
+                _onDriverEvent -= value;
+                if (_onDriverEvent == null)
+                {
+                    _manager.OnDriverEvent -= OnDriverEventReceiver;
+                }
+            }
+        }
+
+        /// <summary>
+        /// Maps to COM IPrinterExtensionEvent::OnPrinterQueuesEnumerated
+        /// </summary>
+        public event EventHandler<PrinterQueuesEnumeratedEventArgs> OnPrinterQueuesEnumerated
+        {
+            add
+            {
+                if (_onPrinterQueuesEnumerated == null)
+                {
+                    _manager.OnPrinterQueuesEnumerated += OnPrinterQueuesEnumeratedReceiver;
+                }
+                _onPrinterQueuesEnumerated += value;
+            }
+            remove
+            {
+                _onPrinterQueuesEnumerated -= value;
+                if (_onPrinterQueuesEnumerated == null)
+                {
+                    _manager.OnPrinterQueuesEnumerated -= OnPrinterQueuesEnumeratedReceiver;
+                }
+            }
+        }
+
+        #endregion
+
+        #region Implementation details
+
+        private void OnDriverEventReceiver(PrinterExtensionLib.IPrinterExtensionEventArgs pEventArgs)
+        {
+            if (_onDriverEvent != null)
+            {
+                _onDriverEvent(this, new PrinterExtensionEventArgs(pEventArgs));
+            }
+        }
+
+        private void OnPrinterQueuesEnumeratedReceiver(PrinterExtensionLib.IPrinterExtensionContextCollection contextCollection)
+        {
+            if (_onPrinterQueuesEnumerated != null)
+            {
+                _onPrinterQueuesEnumerated(this, new PrinterQueuesEnumeratedEventArgs(contextCollection));
+            }
+        }
+
+        private event EventHandler<PrinterExtensionEventArgs> _onDriverEvent;
+        private event EventHandler<PrinterQueuesEnumeratedEventArgs> _onPrinterQueuesEnumerated;
+
+        private PrinterExtensionLib.PrinterExtensionManager _manager;
+
+        #endregion
+    }
+}
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