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annotate org.eclipse.swt.win32.win32.x86/src/org/eclipse/swt/ole/win32/OlePropertyChangeSink.d @ 43:b98647bc0aef

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swt win compiles for d2+phobos
author Frank Benoit <benoit@tionex.de>
date Wed, 25 Mar 2009 17:08:05 +0100
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1 /*******************************************************************************
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2 * Copyright (c) 2000, 2007 IBM Corporation and others.
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3 * All rights reserved. This program and the accompanying materials
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4 * are made available under the terms of the Eclipse Public License v1.0
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5 * which accompanies this distribution, and is available at
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6 * http://www.eclipse.org/legal/epl-v10.html
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7 *
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8 * Contributors:
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9 * IBM Corporation - initial API and implementation
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10 * Port to the D programming language:
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11 * Frank Benoit <benoit@tionex.de>
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12 *******************************************************************************/
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13 module org.eclipse.swt.ole.win32.OlePropertyChangeSink;
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14
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15
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16 import org.eclipse.swt.SWT;
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17 import org.eclipse.swt.SWTException;
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18 import org.eclipse.swt.internal.ole.win32.COM;
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19 import org.eclipse.swt.internal.ole.win32.extras;
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20 import org.eclipse.swt.internal.ole.win32.ifs;
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21
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22 import org.eclipse.swt.ole.win32.OleControlSite;
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23 import org.eclipse.swt.ole.win32.OleEventTable;
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24 import org.eclipse.swt.ole.win32.OleListener;
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25 import org.eclipse.swt.ole.win32.OleEvent;
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26 import org.eclipse.swt.ole.win32.OleEventTable;
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27 import org.eclipse.swt.ole.win32.OLE;
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28
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29 final class OlePropertyChangeSink {
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30
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31 private OleControlSite controlSite;
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32 //private IUnknown objIUnknown;
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33
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34 //private COMObject iUnknown;
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35 private _IPropertyNotifySinkImpl iPropertyNotifySink;
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36
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37 private int refCount;
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38
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39 private int propertyCookie;
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40
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41 private OleEventTable eventTable;
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42
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43 this(OleControlSite controlSite) {
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44
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45 this.controlSite = controlSite;
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46
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47 createCOMInterfaces();
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48 }
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49 void addListener(int propertyID, OleListener listener) {
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50 if (listener is null) OLE.error (__FILE__, __LINE__, SWT.ERROR_NULL_ARGUMENT);
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51 if (eventTable is null) eventTable = new OleEventTable ();
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52 eventTable.hook(propertyID, listener);
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53 }
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54 int AddRef() {
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55 refCount++;
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56 return refCount;
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57 }
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58 void connect(IUnknown objIUnknown) {
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59
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60 // Set up property change notification sink
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61 IConnectionPointContainer cpc;
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62 if (objIUnknown.QueryInterface(&COM.IIDIConnectionPointContainer, cast(void**)&cpc) is COM.S_OK) {
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63 IConnectionPoint cp;
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64 if (cpc.FindConnectionPoint(&COM.IIDIPropertyNotifySink, &cp) is COM.S_OK) {
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65 uint cookie;
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66 if (cp.Advise(iPropertyNotifySink, &cookie) is COM.S_OK) {
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67 propertyCookie = cookie;
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68 }
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69 cp.Release();
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70 }
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71 cpc.Release();
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72 }
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73 }
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74 protected void createCOMInterfaces() {
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75 // register each of the interfaces that this object implements
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76 iPropertyNotifySink = new _IPropertyNotifySinkImpl(this);
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77 }
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78 void disconnect(IUnknown objIUnknown) {
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79
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80 // disconnect property notification sink
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81 if (propertyCookie !is 0 && objIUnknown !is null) {
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82 IConnectionPointContainer cpc;
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83 if (objIUnknown.QueryInterface(&COM.IIDIConnectionPointContainer, cast(void**)&cpc) is COM.S_OK) {
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84 IConnectionPoint cp;
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85 if (cpc.FindConnectionPoint(&COM.IIDIPropertyNotifySink, &cp) is COM.S_OK) {
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86 if (cp.Unadvise(propertyCookie) is COM.S_OK) {
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87 propertyCookie = 0;
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88 }
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89 cp.Release();
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90 }
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91 cpc.Release();
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92 }
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93 }
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94 }
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95 private void disposeCOMInterfaces() {
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96 iPropertyNotifySink = null;
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97 }
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98 /**
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99 * Notify listeners of an event.
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100 * <p>
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101 * This method notifies all listeners that an event
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102 * has occurred.
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103 *
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104 * @param eventType the desired SWT event
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105 * @param event the event data
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106 *
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107 * @exception IllegalArgumentException <ul>
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108 * <li>ERROR_NULL_ARGUMENT when handler is null</li>
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109 * </ul>
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110 * @exception SWTException <ul>
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111 * <li>ERROR_THREAD_INVALID_ACCESS when called from the wrong thread</li>
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112 * <li>ERROR_WIDGET_DISPOSED when the widget has been disposed</li>
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113 * </ul>
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114 */
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115 private void notifyListener (int eventType, OleEvent event) {
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116 if (event is null) OLE.error (__FILE__, __LINE__, SWT.ERROR_NULL_ARGUMENT);
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117 if (eventTable is null) return;
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118 event.type = eventType;
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119 event.widget = controlSite;
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120 eventTable.sendEvent (event);
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121 }
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122 package int OnChanged(int dispID) {
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123 if (eventTable is null || !eventTable.hooks(dispID)) return COM.S_OK;
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124 OleEvent event = new OleEvent();
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125 event.detail = OLE.PROPERTY_CHANGED;
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126 notifyListener(dispID,event);
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127 return COM.S_OK;
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128 }
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129 package int OnRequestEdit(int dispID) {
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130 if (eventTable is null || !eventTable.hooks(dispID)) return COM.S_OK;
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131 OleEvent event = new OleEvent();
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132 event.doit = true;
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133 event.detail = OLE.PROPERTY_CHANGING;
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134 notifyListener(dispID,event);
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135 return (event.doit) ? COM.S_OK : COM.S_FALSE;
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136 }
43
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137 protected HRESULT QueryInterface(REFCIID riid, void ** ppvObject) {
0
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138 if (riid is null || ppvObject is null)
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139 return COM.E_INVALIDARG;
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140
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141 if (COM.IsEqualGUID(riid, &COM.IIDIPropertyNotifySink)) {
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142 *ppvObject = cast(void*)cast(IPropertyNotifySink)iPropertyNotifySink;
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143 AddRef();
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144 return COM.S_OK;
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145 }
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146 *ppvObject = null;
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147 return COM.E_NOINTERFACE;
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148 }
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149 int Release() {
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150 refCount--;
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151 if (refCount is 0) {
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152 disposeCOMInterfaces();
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153 }
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154 return refCount;
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155 }
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156 void removeListener(int propertyID, OleListener listener) {
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157 if (listener is null) OLE.error (__FILE__, __LINE__, SWT.ERROR_NULL_ARGUMENT);
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158 if (eventTable is null) return;
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159 eventTable.unhook (propertyID, listener);
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160 }
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161 }
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162
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163
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164 private class _IPropertyNotifySinkImpl : IPropertyNotifySink {
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165
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166 OlePropertyChangeSink parent;
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167 this(OlePropertyChangeSink p) { parent = p; }
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168 extern (Windows):
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169 // interface of IUnknown
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170 HRESULT QueryInterface(REFCIID riid, void ** ppvObject) { return parent.QueryInterface(riid, ppvObject); }
0
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171 ULONG AddRef() { return parent.AddRef(); }
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172 ULONG Release() { return parent.Release(); }
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173
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174 // interface of IPropertyNotifySink
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175 int OnChanged(int dispID) { return parent.OnChanged(dispID); }
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176 int OnRequestEdit(int dispID) { return parent.OnRequestEdit(dispID); }
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177 }
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178
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179
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180
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181