Code:
/ Dotnetfx_Win7_3.5.1 / Dotnetfx_Win7_3.5.1 / 3.5.1 / DEVDIV / depot / DevDiv / releases / whidbey / NetFXspW7 / ndp / clr / src / BCL / Microsoft / Win32 / OAVariantLib.cs / 1 / OAVariantLib.cs
// ==++== // // Copyright (c) Microsoft Corporation. All rights reserved. // // ==--== /*============================================================ ** ** Class: OAVariantLib ** ** ** Purpose: This class only exists to provide support for ** implenting IDispatch on managed objects. It is ** used to provide OleAut style coercion rules. ** ** ===========================================================*/ namespace Microsoft.Win32 { using System; using System.Reflection; using System.Runtime.CompilerServices; using CultureInfo = System.Globalization.CultureInfo; using Assert = System.Diagnostics.Assert; internal sealed class OAVariantLib { #region Contants // Constants for VariantChangeType from OleAuto.h public const int NoValueProp = 0x01; public const int AlphaBool = 0x02; public const int NoUserOverride = 0x04; public const int CalendarHijri = 0x08; public const int LocalBool = 0x10; internal static readonly Type [] ClassTypes = { typeof(Empty), typeof(void), typeof(Boolean), typeof(Char), typeof(SByte), typeof(Byte), typeof(Int16), typeof(UInt16), typeof(Int32), typeof(UInt32), typeof(Int64), typeof(UInt64), typeof(Single), typeof(Double), typeof(String), typeof(void), typeof(DateTime), typeof(TimeSpan), typeof(Object), typeof(Decimal), null, // Enums - what do we do here? typeof(Missing), typeof(DBNull), }; // Same hack hack hack - Keep these numbers in [....] w/ the above array. private const int CV_OBJECT=0x12; #endregion #region Private Constructor private OAVariantLib() { } #endregion #region Internal Methods /** * Changes a Variant from one type to another, calling the OLE * Automation VariantChangeTypeEx routine. Note the legal types here are * restricted to the subset of what can be legally found in a VB * Variant and the types that CLR supports explicitly in the * CLR Variant class. */ internal static Variant ChangeType(Variant source, Type targetClass, short options, CultureInfo culture) { if (targetClass == null) throw new ArgumentNullException("targetClass"); if (culture == null) throw new ArgumentNullException("culture"); Variant result = new Variant (); ChangeTypeEx(ref result, source, culture.LCID, GetCVTypeFromClass(targetClass), options); return result; } #endregion #region Private Helpers private static int GetCVTypeFromClass(Type ctype) { #if _DEBUG BCLDebug.Assert(ClassTypes[CV_OBJECT] == typeof(Object), "OAVariantLib::ClassTypes[CV_OBJECT] == Object.class"); #endif int cvtype=-1; for (int i=0; i
Link Menu
This book is available now!
Buy at Amazon US or
Buy at Amazon UK
- TypeToArgumentTypeConverter.cs
- ListBase.cs
- GroupBoxRenderer.cs
- DataTemplateSelector.cs
- XmlExtensionFunction.cs
- embossbitmapeffect.cs
- BooleanToVisibilityConverter.cs
- ISAPIApplicationHost.cs
- QueryOperator.cs
- ActiveXSite.cs
- Vector3DIndependentAnimationStorage.cs
- InnerItemCollectionView.cs
- SimpleTextLine.cs
- ButtonFlatAdapter.cs
- SHA1Managed.cs
- ParameterInfo.cs
- DataGridDesigner.cs
- Resources.Designer.cs
- FileIOPermission.cs
- DataColumnChangeEvent.cs
- MissingManifestResourceException.cs
- ActiveXMessageFormatter.cs
- HttpCookie.cs
- ConditionCollection.cs
- TextServicesPropertyRanges.cs
- ConfigUtil.cs
- MessageEventSubscriptionService.cs
- SynchronizedPool.cs
- DoubleConverter.cs
- RangeValidator.cs
- PresentationSource.cs
- templategroup.cs
- ToolZone.cs
- ContainerParagraph.cs
- PrintPreviewControl.cs
- ScriptControlDescriptor.cs
- PerspectiveCamera.cs
- MimeParameters.cs
- SemaphoreFullException.cs
- ImageField.cs
- Types.cs
- EntityDataSourceWrapper.cs
- RelationshipEndMember.cs
- SecurityDescriptor.cs
- ServiceContractViewControl.Designer.cs
- Psha1DerivedKeyGeneratorHelper.cs
- TraceSection.cs
- BehaviorEditorPart.cs
- ClientConfigurationHost.cs
- ArrayList.cs
- WebPermission.cs
- RightsManagementEncryptedStream.cs
- KeyValueSerializer.cs
- BamlLocalizationDictionary.cs
- TraceXPathNavigator.cs
- DependencyPropertyHelper.cs
- SiteMapDataSource.cs
- SafeArrayTypeMismatchException.cs
- UrlMappingsSection.cs
- FileDataSourceCache.cs
- XsltSettings.cs
- DataControlButton.cs
- PartialClassGenerationTask.cs
- UnaryOperationBinder.cs
- SecurityContext.cs
- SymbolType.cs
- PageContentAsyncResult.cs
- XamlStream.cs
- DeviceFiltersSection.cs
- CompositeActivityValidator.cs
- AppLevelCompilationSectionCache.cs
- EnlistmentState.cs
- ButtonBase.cs
- WindowsClientCredential.cs
- ContentType.cs
- DataBindingHandlerAttribute.cs
- ValidatorCompatibilityHelper.cs
- ScriptControl.cs
- ShapingEngine.cs
- CachedFontFace.cs
- ReachDocumentPageSerializerAsync.cs
- IPGlobalProperties.cs
- SqlComparer.cs
- WebSysDisplayNameAttribute.cs
- UnsafeNativeMethods.cs
- SplashScreenNativeMethods.cs
- XmlComplianceUtil.cs
- TextServicesHost.cs
- UserControlCodeDomTreeGenerator.cs
- QueryOptionExpression.cs
- User.cs
- RectAnimationBase.cs
- TableCellAutomationPeer.cs
- IncrementalReadDecoders.cs
- SevenBitStream.cs
- GlobalEventManager.cs
- TypeUnloadedException.cs
- BasicHttpSecurityElement.cs
- ConfigXmlSignificantWhitespace.cs
- DataBindingList.cs