Code:
/ 4.0 / 4.0 / DEVDIV_TFS / Dev10 / Releases / RTMRel / wpf / src / Core / CSharp / System / Windows / Input / InputProcessorProfiles.cs / 1305600 / InputProcessorProfiles.cs
//---------------------------------------------------------------------------- // //// Copyright (C) Microsoft Corporation. All rights reserved. // // // // Description: Creates ITfInputProcessorProfiles instances. // // History: // 07/30/2003 : yutakas - ported from dotnet tree. // //--------------------------------------------------------------------------- using System; using System.Runtime.InteropServices; using System.Security.Permissions; using System.Threading; using System.Security; using MS.Win32; using MS.Internal; using System.Diagnostics; using System.Globalization; using System.Collections; namespace System.Windows.Input { //----------------------------------------------------- // // InputProcessorProfiles class // //----------------------------------------------------- ////// The InputProcessorProfiles class is always associated with /// hwndInputLanguage class. /// internal class InputProcessorProfiles { //------------------------------------------------------ // // Constructors // //----------------------------------------------------- ////// InputProcessorProfiles Constructor; /// /// Critical - as this sets the value for _ipp. /// Safe - as this just initializes it to null. [SecurityCritical, SecurityTreatAsSafe] internal InputProcessorProfiles() { // _ipp is a ValueType, hence no need for new. _ipp.Value = null; _cookie = UnsafeNativeMethods.TF_INVALID_COOKIE; } //------------------------------------------------------ // // Internal Methods // //------------------------------------------------------ #region Internal Methods ////// Initialize an interface and notify sink. /// ////// Critical - calls critical method (inputprocessorprofilesload) /// calls Critical setter on _ipp.Value /// [SecurityCritical] internal bool Initialize(object o) { Debug.Assert(Thread.CurrentThread.GetApartmentState() == ApartmentState.STA, "Initialize called on MTA thread!"); Debug.Assert(_ipp.Value == null, "Initialize called twice"); _ipp.Value = InputProcessorProfilesLoader.Load(); if (_ipp.Value == null) { return false; } AdviseNotifySink(o); return true; } ////// Initialize an interface and notify sink. /// ////// Critical - as this calls Marshal.ReleaseComObject(), which has a LinkDemand /// Also calls setter for _ipp.Value. /// Safe - as the worst that would happen is NullReference exception when _ipp is accessed. /// Setting _ipp.Value to null is safe. /// [SecurityCritical, SecurityTreatAsSafe] internal void Uninitialize() { Debug.Assert(_ipp.Value != null, "Uninitialize called without initializing"); UnadviseNotifySink(); Marshal.ReleaseComObject(_ipp.Value); _ipp.Value = null; } #endregion Internal Methods //----------------------------------------------------- // // Internal Properties // //------------------------------------------------------ ////// Get the current input language of the current thread. /// ////// Critical - calls unmanaged code to set the input language /// TreatAsSafe - it is OK to set the input language, APIs check /// to make sure the lang is available. /// internal short CurrentInputLanguage { [SecurityCritical, SecurityTreatAsSafe] set { if (_ipp.Value != null) { if (_ipp.Value.ChangeCurrentLanguage(value) != 0) { // // Under WinXP or W2K3, ITfInputProcessorProfiles::ChangeCurrentLanguage() fails // if there is no thread manager in the current thread. This is Cicero's bug and fixed // for Longhorn. // We need to try ActivateKeyboardLayout() for the case. // IntPtr[] hklList = null; int count = (int)SafeNativeMethods.GetKeyboardLayoutList(0, null); if (count > 1) { hklList = new IntPtr[count]; count = SafeNativeMethods.GetKeyboardLayoutList(count, hklList); int i; for (i = 0; (i < hklList.Length) && (i < count); i++) { if (value == (short)hklList[i]) { SafeNativeMethods.ActivateKeyboardLayout(new HandleRef(this,hklList[i]), 0); break; } } } } } } } ////// Get the list of the input languages that are available in the /// current thread. /// ////// Critical - calls unmanaged code to query the languages on the system /// TreatAsSafe - it is OK to disclose the available languages on the system /// internal ArrayList InputLanguageList { [SecurityCritical, SecurityTreatAsSafe] get { int nCount; IntPtr langids; // ITfInputProcessorProfiles::GetLanguageList returns the pointer that was allocated by // CoTaskMemAlloc(). _ipp.Value.GetLanguageList(out langids, out nCount); ArrayList arrayLang = new ArrayList(); int sizeOfShort = Marshal.SizeOf(typeof(short)); for (int i = 0; i < nCount; i++) { // Unmarshal each langid from short array. short langid = (short)Marshal.PtrToStructure((IntPtr)((Int64)langids + sizeOfShort * i), typeof(short)); arrayLang.Add(new CultureInfo(langid)); } // Call CoTaskMemFree(). Marshal.FreeCoTaskMem(langids); return arrayLang; } } //----------------------------------------------------- // // Private Methods // //----------------------------------------------------- ////// This advices the input language notify sink to /// ITfInputProcessorProfile. /// ////// Critical: This calls into ITfSource which is an interop COM call /// [SecurityCritical] private void AdviseNotifySink(object o) { Debug.Assert(_cookie == UnsafeNativeMethods.TF_INVALID_COOKIE, "Cookie is already set."); UnsafeNativeMethods.ITfSource source = _ipp.Value as UnsafeNativeMethods.ITfSource; // workaround because I can't pass a ref to a readonly constant Guid guid = UnsafeNativeMethods.IID_ITfLanguageProfileNotifySink; source.AdviseSink(ref guid, o, out _cookie); } ////// This unadvises the sink. /// ////// Critical - As this elevates to invoke UnadviseSink on ITfSource. /// Safe - as the worst that'll happen is that we'll lose some text framework notifications. /// Note that _ipp is marked SecurityCritical for set. /// [SecurityCritical, SecurityTreatAsSafe] private void UnadviseNotifySink() { Debug.Assert(_cookie != UnsafeNativeMethods.TF_INVALID_COOKIE, "Cookie is not set."); UnsafeNativeMethods.ITfSource source = _ipp.Value as UnsafeNativeMethods.ITfSource; source.UnadviseSink(_cookie); _cookie = UnsafeNativeMethods.TF_INVALID_COOKIE; } //----------------------------------------------------- // // Private Fields // //------------------------------------------------------ // The reference to ITfInputProcessorProfile. private SecurityCriticalDataForSet_ipp; // The cookie for the advised sink. private int _cookie; } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. // Copyright (c) Microsoft Corporation. All rights reserved. //---------------------------------------------------------------------------- // // // Copyright (C) Microsoft Corporation. All rights reserved. // // // // Description: Creates ITfInputProcessorProfiles instances. // // History: // 07/30/2003 : yutakas - ported from dotnet tree. // //--------------------------------------------------------------------------- using System; using System.Runtime.InteropServices; using System.Security.Permissions; using System.Threading; using System.Security; using MS.Win32; using MS.Internal; using System.Diagnostics; using System.Globalization; using System.Collections; namespace System.Windows.Input { //----------------------------------------------------- // // InputProcessorProfiles class // //----------------------------------------------------- ////// The InputProcessorProfiles class is always associated with /// hwndInputLanguage class. /// internal class InputProcessorProfiles { //------------------------------------------------------ // // Constructors // //----------------------------------------------------- ////// InputProcessorProfiles Constructor; /// /// Critical - as this sets the value for _ipp. /// Safe - as this just initializes it to null. [SecurityCritical, SecurityTreatAsSafe] internal InputProcessorProfiles() { // _ipp is a ValueType, hence no need for new. _ipp.Value = null; _cookie = UnsafeNativeMethods.TF_INVALID_COOKIE; } //------------------------------------------------------ // // Internal Methods // //------------------------------------------------------ #region Internal Methods ////// Initialize an interface and notify sink. /// ////// Critical - calls critical method (inputprocessorprofilesload) /// calls Critical setter on _ipp.Value /// [SecurityCritical] internal bool Initialize(object o) { Debug.Assert(Thread.CurrentThread.GetApartmentState() == ApartmentState.STA, "Initialize called on MTA thread!"); Debug.Assert(_ipp.Value == null, "Initialize called twice"); _ipp.Value = InputProcessorProfilesLoader.Load(); if (_ipp.Value == null) { return false; } AdviseNotifySink(o); return true; } ////// Initialize an interface and notify sink. /// ////// Critical - as this calls Marshal.ReleaseComObject(), which has a LinkDemand /// Also calls setter for _ipp.Value. /// Safe - as the worst that would happen is NullReference exception when _ipp is accessed. /// Setting _ipp.Value to null is safe. /// [SecurityCritical, SecurityTreatAsSafe] internal void Uninitialize() { Debug.Assert(_ipp.Value != null, "Uninitialize called without initializing"); UnadviseNotifySink(); Marshal.ReleaseComObject(_ipp.Value); _ipp.Value = null; } #endregion Internal Methods //----------------------------------------------------- // // Internal Properties // //------------------------------------------------------ ////// Get the current input language of the current thread. /// ////// Critical - calls unmanaged code to set the input language /// TreatAsSafe - it is OK to set the input language, APIs check /// to make sure the lang is available. /// internal short CurrentInputLanguage { [SecurityCritical, SecurityTreatAsSafe] set { if (_ipp.Value != null) { if (_ipp.Value.ChangeCurrentLanguage(value) != 0) { // // Under WinXP or W2K3, ITfInputProcessorProfiles::ChangeCurrentLanguage() fails // if there is no thread manager in the current thread. This is Cicero's bug and fixed // for Longhorn. // We need to try ActivateKeyboardLayout() for the case. // IntPtr[] hklList = null; int count = (int)SafeNativeMethods.GetKeyboardLayoutList(0, null); if (count > 1) { hklList = new IntPtr[count]; count = SafeNativeMethods.GetKeyboardLayoutList(count, hklList); int i; for (i = 0; (i < hklList.Length) && (i < count); i++) { if (value == (short)hklList[i]) { SafeNativeMethods.ActivateKeyboardLayout(new HandleRef(this,hklList[i]), 0); break; } } } } } } } ////// Get the list of the input languages that are available in the /// current thread. /// ////// Critical - calls unmanaged code to query the languages on the system /// TreatAsSafe - it is OK to disclose the available languages on the system /// internal ArrayList InputLanguageList { [SecurityCritical, SecurityTreatAsSafe] get { int nCount; IntPtr langids; // ITfInputProcessorProfiles::GetLanguageList returns the pointer that was allocated by // CoTaskMemAlloc(). _ipp.Value.GetLanguageList(out langids, out nCount); ArrayList arrayLang = new ArrayList(); int sizeOfShort = Marshal.SizeOf(typeof(short)); for (int i = 0; i < nCount; i++) { // Unmarshal each langid from short array. short langid = (short)Marshal.PtrToStructure((IntPtr)((Int64)langids + sizeOfShort * i), typeof(short)); arrayLang.Add(new CultureInfo(langid)); } // Call CoTaskMemFree(). Marshal.FreeCoTaskMem(langids); return arrayLang; } } //----------------------------------------------------- // // Private Methods // //----------------------------------------------------- ////// This advices the input language notify sink to /// ITfInputProcessorProfile. /// ////// Critical: This calls into ITfSource which is an interop COM call /// [SecurityCritical] private void AdviseNotifySink(object o) { Debug.Assert(_cookie == UnsafeNativeMethods.TF_INVALID_COOKIE, "Cookie is already set."); UnsafeNativeMethods.ITfSource source = _ipp.Value as UnsafeNativeMethods.ITfSource; // workaround because I can't pass a ref to a readonly constant Guid guid = UnsafeNativeMethods.IID_ITfLanguageProfileNotifySink; source.AdviseSink(ref guid, o, out _cookie); } ////// This unadvises the sink. /// ////// Critical - As this elevates to invoke UnadviseSink on ITfSource. /// Safe - as the worst that'll happen is that we'll lose some text framework notifications. /// Note that _ipp is marked SecurityCritical for set. /// [SecurityCritical, SecurityTreatAsSafe] private void UnadviseNotifySink() { Debug.Assert(_cookie != UnsafeNativeMethods.TF_INVALID_COOKIE, "Cookie is not set."); UnsafeNativeMethods.ITfSource source = _ipp.Value as UnsafeNativeMethods.ITfSource; source.UnadviseSink(_cookie); _cookie = UnsafeNativeMethods.TF_INVALID_COOKIE; } //----------------------------------------------------- // // Private Fields // //------------------------------------------------------ // The reference to ITfInputProcessorProfile. private SecurityCriticalDataForSet_ipp; // The cookie for the advised sink. private int _cookie; } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. // Copyright (c) Microsoft Corporation. All rights reserved.
Link Menu
This book is available now!
Buy at Amazon US or
Buy at Amazon UK
- ClientConfigurationSystem.cs
- ColorConvertedBitmap.cs
- TypeToken.cs
- ClientType.cs
- TextServicesLoader.cs
- ReaderOutput.cs
- ApplicationBuildProvider.cs
- Help.cs
- XmlSchemaSet.cs
- PkcsMisc.cs
- ClientScriptManager.cs
- SortAction.cs
- LogicalExpr.cs
- OleDbReferenceCollection.cs
- PipelineModuleStepContainer.cs
- AssemblyBuilder.cs
- InputScope.cs
- SurrogateEncoder.cs
- EnumValAlphaComparer.cs
- ScrollableControl.cs
- DesignerDataColumn.cs
- OracleParameterCollection.cs
- ParameterCollection.cs
- LineUtil.cs
- SapiGrammar.cs
- SystemIcmpV6Statistics.cs
- FixedSOMTableCell.cs
- _NativeSSPI.cs
- WebRequestModuleElementCollection.cs
- AutomationAttributeInfo.cs
- WorkflowRequestContext.cs
- DataGridColumnsPage.cs
- __ComObject.cs
- TypeForwardedToAttribute.cs
- DoubleAnimationUsingPath.cs
- Cursor.cs
- SqlUnionizer.cs
- MetadataSerializer.cs
- Pair.cs
- Section.cs
- WindowsListViewScroll.cs
- BlurEffect.cs
- Method.cs
- WebBrowserBase.cs
- TablePattern.cs
- ResetableIterator.cs
- BuildProvider.cs
- PrivilegedConfigurationManager.cs
- HelpKeywordAttribute.cs
- CollectionsUtil.cs
- LockCookie.cs
- DebugHandleTracker.cs
- _TLSstream.cs
- DataSvcMapFile.cs
- Byte.cs
- X509Chain.cs
- EditorPart.cs
- PropertyInfoSet.cs
- StylusDevice.cs
- EventLogTraceListener.cs
- AttachedPropertyBrowsableAttribute.cs
- PtsHost.cs
- basevalidator.cs
- GridItem.cs
- SqlCacheDependencyDatabaseCollection.cs
- DataSourceHelper.cs
- HtmlControlAdapter.cs
- DependencyPropertyChangedEventArgs.cs
- XmlSchemaException.cs
- DataDocumentXPathNavigator.cs
- Line.cs
- GradientSpreadMethodValidation.cs
- EntityContainer.cs
- Duration.cs
- PageStatePersister.cs
- PeerInvitationResponse.cs
- IIS7UserPrincipal.cs
- Faults.cs
- Quaternion.cs
- ToolStripDropTargetManager.cs
- EntityDataSourceContextCreatingEventArgs.cs
- RegionData.cs
- ImageMetadata.cs
- QueryExpr.cs
- UxThemeWrapper.cs
- SHA1CryptoServiceProvider.cs
- ChangePassword.cs
- DictionaryEntry.cs
- ColorTranslator.cs
- DesignerToolStripControlHost.cs
- TimeSpanMinutesOrInfiniteConverter.cs
- WindowsContainer.cs
- BuildProviderAppliesToAttribute.cs
- BufferedResponseStream.cs
- StringSource.cs
- ThicknessConverter.cs
- SBCSCodePageEncoding.cs
- CredentialSelector.cs
- Overlapped.cs
- SafeWaitHandle.cs