Code:
/ Dotnetfx_Vista_SP2 / Dotnetfx_Vista_SP2 / 8.0.50727.4016 / DEVDIV / depot / DevDiv / releases / Orcas / QFE / wpf / src / Base / System / Windows / Interop / ComponentDispatcherThread.cs / 1 / ComponentDispatcherThread.cs
//------------------------------------------------------------------------------ //// Copyright (c) Microsoft Corporation. All rights reserved. // //----------------------------------------------------------------------------- using System; using MS.Win32; using System.Globalization; using System.Security; using System.Security.Permissions; using MS.Internal.WindowsBase; namespace System.Windows.Interop { ////// This is a class used to implement per-thread instance of the ComponentDispatcher. /// internal class ComponentDispatcherThread { ////// Returns true if one or more components has gone modal. /// Although once one component is modal a 2nd shouldn't. /// public bool IsThreadModal { get { return (_modalCount > 0); } } ////// Returns "current" message. More exactly the last MSG Raised. /// ////// Critical: This is blocked off as defense in depth to avoid leaking message information /// public MSG CurrentKeyboardMessage { [SecurityCritical] get { return _currentKeyboardMSG; } [SecurityCritical] set { _currentKeyboardMSG = value; } } ////// A component calls this to go modal. Current thread wide only. /// ////// Critical: This is blocked off as defense in depth /// [SecurityCritical] public void PushModal() { _modalCount += 1; if(1 == _modalCount) { if(null != _enterThreadModal) _enterThreadModal(null, EventArgs.Empty); } } ////// A component calls this to end being modal. /// ////// Critical: This is blocked off as defense in depth to avoid tampering with input /// [SecurityCritical] public void PopModal() { _modalCount -= 1; if(0 == _modalCount) { if(null != _leaveThreadModal) _leaveThreadModal(null, EventArgs.Empty); } if(_modalCount < 0) _modalCount = 0; // Throwing is also good } ////// The message loop pumper calls this when it is time to do idle processing. /// ////// Critical: This is blocked off as defense in depth /// [SecurityCritical] public void RaiseIdle() { if(null != _threadIdle) _threadIdle(null, EventArgs.Empty); } ////// The message loop pumper calls this for every keyboard message. /// ////// Critical: This is blocked off as defense in depth to prevent message leakage /// [SecurityCritical] public bool RaiseThreadMessage(ref MSG msg) { bool handled=false; if(null != _threadFilterMessage) _threadFilterMessage(ref msg, ref handled); if(handled) return handled; if(null != _threadPreprocessMessage) _threadPreprocessMessage(ref msg, ref handled); return handled; } ////// Components register delegates with this event to handle /// thread idle processing. /// ////// Critical: This is blocked off as defense in depth and is used to transmit input related information /// public event EventHandler ThreadIdle { [SecurityCritical] add { _threadIdle += value; } [SecurityCritical] remove { _threadIdle -= value; } } ////// Critical: This is blocked off as defense in depth and is used to transmit input related information /// [SecurityCritical] private event EventHandler _threadIdle; ////// Components register delegates with this event to handle /// Keyboard Messages (first chance processing). /// ////// Critical: This is blocked off as defense in depth and is used to transmit input related information /// public event ThreadMessageEventHandler ThreadFilterMessage { [SecurityCritical] add { _threadFilterMessage += value; } [SecurityCritical] remove { _threadFilterMessage -= value; } } ////// Critical: This is blocked off as defense in depth and is used to transmit input related information /// [SecurityCritical] private event ThreadMessageEventHandler _threadFilterMessage; ////// Components register delegates with this event to handle /// Keyboard Messages (second chance processing). /// ////// Critical: This is blocked off as defense in depth and is used to transmit input related information /// public event ThreadMessageEventHandler ThreadPreprocessMessage { [SecurityCritical] add { _threadPreprocessMessage += value; } [SecurityCritical] remove { _threadPreprocessMessage -= value; } } ////// Critical: This is blocked off as defense in depth and is used to transmit input related information /// [SecurityCritical] private event ThreadMessageEventHandler _threadPreprocessMessage; ////// Components register delegates with this event to handle /// a component on this thread has "gone modal", when previously none were. /// ////// Critical: This is blocked off as defense in depth and is used to transmit input related information /// public event EventHandler EnterThreadModal { [SecurityCritical] add { _enterThreadModal += value; } [SecurityCritical] remove { _enterThreadModal -= value; } } ////// Critical: This is blocked off as defense in depth and is used to transmit input related information /// [SecurityCritical] private event EventHandler _enterThreadModal; ////// Components register delegates with this event to handle /// all components on this thread are done being modal. /// ////// Critical: This is blocked off as defense in depth and is used to transmit input related information /// public event EventHandler LeaveThreadModal { [SecurityCritical] add { _leaveThreadModal += value; } [SecurityCritical] remove { _leaveThreadModal -= value; } } ////// Critical: This is blocked off as defense in depth and is used to transmit input related information /// [SecurityCritical] private event EventHandler _leaveThreadModal; private int _modalCount; ////// Critical: This holds the last message that was recieved /// [SecurityCritical] private MSG _currentKeyboardMSG; } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. //------------------------------------------------------------------------------ //// Copyright (c) Microsoft Corporation. All rights reserved. // //----------------------------------------------------------------------------- using System; using MS.Win32; using System.Globalization; using System.Security; using System.Security.Permissions; using MS.Internal.WindowsBase; namespace System.Windows.Interop { ////// This is a class used to implement per-thread instance of the ComponentDispatcher. /// internal class ComponentDispatcherThread { ////// Returns true if one or more components has gone modal. /// Although once one component is modal a 2nd shouldn't. /// public bool IsThreadModal { get { return (_modalCount > 0); } } ////// Returns "current" message. More exactly the last MSG Raised. /// ////// Critical: This is blocked off as defense in depth to avoid leaking message information /// public MSG CurrentKeyboardMessage { [SecurityCritical] get { return _currentKeyboardMSG; } [SecurityCritical] set { _currentKeyboardMSG = value; } } ////// A component calls this to go modal. Current thread wide only. /// ////// Critical: This is blocked off as defense in depth /// [SecurityCritical] public void PushModal() { _modalCount += 1; if(1 == _modalCount) { if(null != _enterThreadModal) _enterThreadModal(null, EventArgs.Empty); } } ////// A component calls this to end being modal. /// ////// Critical: This is blocked off as defense in depth to avoid tampering with input /// [SecurityCritical] public void PopModal() { _modalCount -= 1; if(0 == _modalCount) { if(null != _leaveThreadModal) _leaveThreadModal(null, EventArgs.Empty); } if(_modalCount < 0) _modalCount = 0; // Throwing is also good } ////// The message loop pumper calls this when it is time to do idle processing. /// ////// Critical: This is blocked off as defense in depth /// [SecurityCritical] public void RaiseIdle() { if(null != _threadIdle) _threadIdle(null, EventArgs.Empty); } ////// The message loop pumper calls this for every keyboard message. /// ////// Critical: This is blocked off as defense in depth to prevent message leakage /// [SecurityCritical] public bool RaiseThreadMessage(ref MSG msg) { bool handled=false; if(null != _threadFilterMessage) _threadFilterMessage(ref msg, ref handled); if(handled) return handled; if(null != _threadPreprocessMessage) _threadPreprocessMessage(ref msg, ref handled); return handled; } ////// Components register delegates with this event to handle /// thread idle processing. /// ////// Critical: This is blocked off as defense in depth and is used to transmit input related information /// public event EventHandler ThreadIdle { [SecurityCritical] add { _threadIdle += value; } [SecurityCritical] remove { _threadIdle -= value; } } ////// Critical: This is blocked off as defense in depth and is used to transmit input related information /// [SecurityCritical] private event EventHandler _threadIdle; ////// Components register delegates with this event to handle /// Keyboard Messages (first chance processing). /// ////// Critical: This is blocked off as defense in depth and is used to transmit input related information /// public event ThreadMessageEventHandler ThreadFilterMessage { [SecurityCritical] add { _threadFilterMessage += value; } [SecurityCritical] remove { _threadFilterMessage -= value; } } ////// Critical: This is blocked off as defense in depth and is used to transmit input related information /// [SecurityCritical] private event ThreadMessageEventHandler _threadFilterMessage; ////// Components register delegates with this event to handle /// Keyboard Messages (second chance processing). /// ////// Critical: This is blocked off as defense in depth and is used to transmit input related information /// public event ThreadMessageEventHandler ThreadPreprocessMessage { [SecurityCritical] add { _threadPreprocessMessage += value; } [SecurityCritical] remove { _threadPreprocessMessage -= value; } } ////// Critical: This is blocked off as defense in depth and is used to transmit input related information /// [SecurityCritical] private event ThreadMessageEventHandler _threadPreprocessMessage; ////// Components register delegates with this event to handle /// a component on this thread has "gone modal", when previously none were. /// ////// Critical: This is blocked off as defense in depth and is used to transmit input related information /// public event EventHandler EnterThreadModal { [SecurityCritical] add { _enterThreadModal += value; } [SecurityCritical] remove { _enterThreadModal -= value; } } ////// Critical: This is blocked off as defense in depth and is used to transmit input related information /// [SecurityCritical] private event EventHandler _enterThreadModal; ////// Components register delegates with this event to handle /// all components on this thread are done being modal. /// ////// Critical: This is blocked off as defense in depth and is used to transmit input related information /// public event EventHandler LeaveThreadModal { [SecurityCritical] add { _leaveThreadModal += value; } [SecurityCritical] remove { _leaveThreadModal -= value; } } ////// Critical: This is blocked off as defense in depth and is used to transmit input related information /// [SecurityCritical] private event EventHandler _leaveThreadModal; private int _modalCount; ////// Critical: This holds the last message that was recieved /// [SecurityCritical] private MSG _currentKeyboardMSG; } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007.
Link Menu
This book is available now!
Buy at Amazon US or
Buy at Amazon UK
- ListViewCommandEventArgs.cs
- ToolStripSystemRenderer.cs
- SafeLibraryHandle.cs
- ArraySortHelper.cs
- FixedSOMTable.cs
- Math.cs
- RuntimeConfigurationRecord.cs
- ByteStreamGeometryContext.cs
- TypeSystem.cs
- AuthenticationServiceManager.cs
- FixedFlowMap.cs
- SoapFormatExtensions.cs
- DataFormats.cs
- CurrencyWrapper.cs
- HwndKeyboardInputProvider.cs
- PageThemeParser.cs
- StyleCollection.cs
- Semaphore.cs
- COM2EnumConverter.cs
- DesignOnlyAttribute.cs
- Debug.cs
- TdsParser.cs
- DbConnectionPool.cs
- InternalConfigConfigurationFactory.cs
- Convert.cs
- BidPrivateBase.cs
- WebScriptMetadataFormatter.cs
- DataDocumentXPathNavigator.cs
- Soap12ServerProtocol.cs
- GeometryCombineModeValidation.cs
- SQLBoolean.cs
- securitymgrsite.cs
- ImagingCache.cs
- KeyValuePair.cs
- CreationContext.cs
- DataGridViewSelectedCellCollection.cs
- RepeatBehavior.cs
- COMException.cs
- AcceleratedTokenProviderState.cs
- exports.cs
- ParseHttpDate.cs
- EntityContainer.cs
- SqlDataSource.cs
- EntityDataSourceDataSelection.cs
- Iis7Helper.cs
- WebBrowserHelper.cs
- StatusStrip.cs
- PublisherMembershipCondition.cs
- MenuItem.cs
- ColorKeyFrameCollection.cs
- String.cs
- DataGridViewControlCollection.cs
- SettingsContext.cs
- UserControl.cs
- ChannelServices.cs
- FilterQuery.cs
- SqlVisitor.cs
- Timer.cs
- SimpleBitVector32.cs
- EntityDataSourceEntityTypeFilterItem.cs
- DaylightTime.cs
- ListBox.cs
- CharacterMetricsDictionary.cs
- SqlDataSourceEnumerator.cs
- Columns.cs
- AssemblyInfo.cs
- Parameter.cs
- DoubleLinkListEnumerator.cs
- ClassHandlersStore.cs
- PolicyDesigner.cs
- SystemIPInterfaceProperties.cs
- SqlXmlStorage.cs
- IsolatedStorageFilePermission.cs
- DebugHandleTracker.cs
- LocalFileSettingsProvider.cs
- CodePageUtils.cs
- StringCollection.cs
- ButtonChrome.cs
- UnauthorizedAccessException.cs
- DataViewSettingCollection.cs
- RuntimeComponentFilter.cs
- ImageList.cs
- HtmlSelectionListAdapter.cs
- SecurityUtils.cs
- NamespaceExpr.cs
- CustomError.cs
- CaseInsensitiveHashCodeProvider.cs
- FunctionQuery.cs
- EdmRelationshipRoleAttribute.cs
- grammarelement.cs
- LocalizationComments.cs
- SqlBooleanizer.cs
- NameSpaceExtractor.cs
- ImmComposition.cs
- IteratorFilter.cs
- BooleanAnimationUsingKeyFrames.cs
- ContourSegment.cs
- SystemBrushes.cs
- DisplayNameAttribute.cs
- UnicodeEncoding.cs