Code:
/ Dotnetfx_Win7_3.5.1 / Dotnetfx_Win7_3.5.1 / 3.5.1 / DEVDIV / depot / DevDiv / releases / whidbey / NetFXspW7 / ndp / clr / src / BCL / System / Reflection / Emit / UnmanagedMarshal.cs / 1 / UnmanagedMarshal.cs
// ==++== // // Copyright (c) Microsoft Corporation. All rights reserved. // // ==--== namespace System.Reflection.Emit { using System.Runtime.InteropServices; using System; using System.Security.Permissions; // This class is describing the fieldmarshal. [Serializable()] [HostProtection(MayLeakOnAbort = true)] [System.Runtime.InteropServices.ComVisible(true)] [Obsolete("An alternate API is available: Emit the MarshalAs custom attribute instead. http://go.microsoft.com/fwlink/?linkid=14202")] public sealed class UnmanagedMarshal { /****************************** [System.Runtime.InteropServices.ComVisible(true)] * public static constructors. You can only construct * UnmanagedMarshal using these static constructors. ******************************/ public static UnmanagedMarshal DefineUnmanagedMarshal(UnmanagedType unmanagedType) { if (unmanagedType == UnmanagedType.ByValTStr || #if FEATURE_COMINTEROP unmanagedType == UnmanagedType.SafeArray || #endif //FEATURE_COMINTEROP unmanagedType == UnmanagedType.ByValArray || unmanagedType == UnmanagedType.LPArray || unmanagedType == UnmanagedType.CustomMarshaler) { // not a simple native marshal throw new ArgumentException(Environment.GetResourceString("Argument_NotASimpleNativeType")); } return new UnmanagedMarshal(unmanagedType, Guid.Empty, 0, (UnmanagedType) 0); } public static UnmanagedMarshal DefineByValTStr(int elemCount) { return new UnmanagedMarshal(UnmanagedType.ByValTStr, Guid.Empty, elemCount, (UnmanagedType) 0); } #if FEATURE_COMINTEROP public static UnmanagedMarshal DefineSafeArray(UnmanagedType elemType) { return new UnmanagedMarshal(UnmanagedType.SafeArray, Guid.Empty, 0, elemType); } #endif //FEATURE_COMINTEROP public static UnmanagedMarshal DefineByValArray(int elemCount) { return new UnmanagedMarshal(UnmanagedType.ByValArray, Guid.Empty, elemCount, (UnmanagedType) 0); } public static UnmanagedMarshal DefineLPArray(UnmanagedType elemType) { return new UnmanagedMarshal(UnmanagedType.LPArray, Guid.Empty, 0, elemType); } // accessor function for the native type public UnmanagedType GetUnmanagedType { get { return m_unmanagedType; } } public Guid IIDGuid { get { if (m_unmanagedType != UnmanagedType.CustomMarshaler) { // throw exception here. There is Guid only if CustomMarshaler throw new ArgumentException(Environment.GetResourceString("Argument_NotACustomMarshaler")); } return m_guid; } } public int ElementCount { get { if (m_unmanagedType != UnmanagedType.ByValArray && m_unmanagedType != UnmanagedType.ByValTStr) { // throw exception here. There is NumElement only if NativeTypeFixedArray throw new ArgumentException(Environment.GetResourceString("Argument_NoUnmanagedElementCount")); } return m_numElem; } } public UnmanagedType BaseType { get { #if FEATURE_COMINTEROP if (m_unmanagedType != UnmanagedType.LPArray && m_unmanagedType != UnmanagedType.SafeArray) #else if (m_unmanagedType != UnmanagedType.LPArray) #endif //!FEATURE_COMINTEROP { // throw exception here. There is NestedUnmanagedType only if LPArray or SafeArray throw new ArgumentException(Environment.GetResourceString("Argument_NoNestedMarshal")); } return m_baseType; } } private UnmanagedMarshal(UnmanagedType unmanagedType, Guid guid, int numElem, UnmanagedType type) { m_unmanagedType = unmanagedType; m_guid = guid; m_numElem = numElem; m_baseType = type; } /************************ * * Data member * *************************/ internal UnmanagedType m_unmanagedType; internal Guid m_guid; internal int m_numElem; internal UnmanagedType m_baseType; /************************ * this function return the byte representation of the marshal info. *************************/ internal byte[] InternalGetBytes() { byte[] buf; #if FEATURE_COMINTEROP if (m_unmanagedType == UnmanagedType.SafeArray || m_unmanagedType == UnmanagedType.LPArray) #else if (m_unmanagedType == UnmanagedType.LPArray) #endif //!FEATURE_COMINTEROP { // syntax for NativeTypeSafeArray is //// int cBuf = 2; buf = new byte[cBuf]; buf[0] = (byte) (m_unmanagedType); buf[1] = (byte) (m_baseType); return buf; } else if (m_unmanagedType == UnmanagedType.ByValArray || m_unmanagedType == UnmanagedType.ByValTStr) { // // int cBuf; int iBuf = 0; if (m_numElem <= 0x7f) cBuf = 1; else if (m_numElem <= 0x3FFF) cBuf = 2; else cBuf = 4; // the total buffer size is the one byte + encoded integer size cBuf = cBuf + 1; buf = new byte[cBuf]; buf[iBuf++] = (byte) (m_unmanagedType); if (m_numElem <= 0x7F) { buf[iBuf++] = (byte)(m_numElem & 0xFF); } else if (m_numElem <= 0x3FFF) { buf[iBuf++] = (byte)((m_numElem >> 8) | 0x80); buf[iBuf++] = (byte)(m_numElem & 0xFF); } else if (m_numElem <= 0x1FFFFFFF) { buf[iBuf++] = (byte)((m_numElem >> 24) | 0xC0); buf[iBuf++] = (byte)((m_numElem >> 16) & 0xFF); buf[iBuf++] = (byte)((m_numElem >> 8) & 0xFF); buf[iBuf++] = (byte)((m_numElem) & 0xFF); } return buf; } buf = new byte[1]; buf[0] = (byte) (m_unmanagedType); return buf; } } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. // ==++== // // Copyright (c) Microsoft Corporation. All rights reserved. // // ==--== namespace System.Reflection.Emit { using System.Runtime.InteropServices; using System; using System.Security.Permissions; // This class is describing the fieldmarshal. [Serializable()] [HostProtection(MayLeakOnAbort = true)] [System.Runtime.InteropServices.ComVisible(true)] [Obsolete("An alternate API is available: Emit the MarshalAs custom attribute instead. http://go.microsoft.com/fwlink/?linkid=14202")] public sealed class UnmanagedMarshal { /****************************** [System.Runtime.InteropServices.ComVisible(true)] * public static constructors. You can only construct * UnmanagedMarshal using these static constructors. ******************************/ public static UnmanagedMarshal DefineUnmanagedMarshal(UnmanagedType unmanagedType) { if (unmanagedType == UnmanagedType.ByValTStr || #if FEATURE_COMINTEROP unmanagedType == UnmanagedType.SafeArray || #endif //FEATURE_COMINTEROP unmanagedType == UnmanagedType.ByValArray || unmanagedType == UnmanagedType.LPArray || unmanagedType == UnmanagedType.CustomMarshaler) { // not a simple native marshal throw new ArgumentException(Environment.GetResourceString("Argument_NotASimpleNativeType")); } return new UnmanagedMarshal(unmanagedType, Guid.Empty, 0, (UnmanagedType) 0); } public static UnmanagedMarshal DefineByValTStr(int elemCount) { return new UnmanagedMarshal(UnmanagedType.ByValTStr, Guid.Empty, elemCount, (UnmanagedType) 0); } #if FEATURE_COMINTEROP public static UnmanagedMarshal DefineSafeArray(UnmanagedType elemType) { return new UnmanagedMarshal(UnmanagedType.SafeArray, Guid.Empty, 0, elemType); } #endif //FEATURE_COMINTEROP public static UnmanagedMarshal DefineByValArray(int elemCount) { return new UnmanagedMarshal(UnmanagedType.ByValArray, Guid.Empty, elemCount, (UnmanagedType) 0); } public static UnmanagedMarshal DefineLPArray(UnmanagedType elemType) { return new UnmanagedMarshal(UnmanagedType.LPArray, Guid.Empty, 0, elemType); } // accessor function for the native type public UnmanagedType GetUnmanagedType { get { return m_unmanagedType; } } public Guid IIDGuid { get { if (m_unmanagedType != UnmanagedType.CustomMarshaler) { // throw exception here. There is Guid only if CustomMarshaler throw new ArgumentException(Environment.GetResourceString("Argument_NotACustomMarshaler")); } return m_guid; } } public int ElementCount { get { if (m_unmanagedType != UnmanagedType.ByValArray && m_unmanagedType != UnmanagedType.ByValTStr) { // throw exception here. There is NumElement only if NativeTypeFixedArray throw new ArgumentException(Environment.GetResourceString("Argument_NoUnmanagedElementCount")); } return m_numElem; } } public UnmanagedType BaseType { get { #if FEATURE_COMINTEROP if (m_unmanagedType != UnmanagedType.LPArray && m_unmanagedType != UnmanagedType.SafeArray) #else if (m_unmanagedType != UnmanagedType.LPArray) #endif //!FEATURE_COMINTEROP { // throw exception here. There is NestedUnmanagedType only if LPArray or SafeArray throw new ArgumentException(Environment.GetResourceString("Argument_NoNestedMarshal")); } return m_baseType; } } private UnmanagedMarshal(UnmanagedType unmanagedType, Guid guid, int numElem, UnmanagedType type) { m_unmanagedType = unmanagedType; m_guid = guid; m_numElem = numElem; m_baseType = type; } /************************ * * Data member * *************************/ internal UnmanagedType m_unmanagedType; internal Guid m_guid; internal int m_numElem; internal UnmanagedType m_baseType; /************************ * this function return the byte representation of the marshal info. *************************/ internal byte[] InternalGetBytes() { byte[] buf; #if FEATURE_COMINTEROP if (m_unmanagedType == UnmanagedType.SafeArray || m_unmanagedType == UnmanagedType.LPArray) #else if (m_unmanagedType == UnmanagedType.LPArray) #endif //!FEATURE_COMINTEROP { // syntax for NativeTypeSafeArray is // // int cBuf = 2; buf = new byte[cBuf]; buf[0] = (byte) (m_unmanagedType); buf[1] = (byte) (m_baseType); return buf; } else if (m_unmanagedType == UnmanagedType.ByValArray || m_unmanagedType == UnmanagedType.ByValTStr) { // // int cBuf; int iBuf = 0; if (m_numElem <= 0x7f) cBuf = 1; else if (m_numElem <= 0x3FFF) cBuf = 2; else cBuf = 4; // the total buffer size is the one byte + encoded integer size cBuf = cBuf + 1; buf = new byte[cBuf]; buf[iBuf++] = (byte) (m_unmanagedType); if (m_numElem <= 0x7F) { buf[iBuf++] = (byte)(m_numElem & 0xFF); } else if (m_numElem <= 0x3FFF) { buf[iBuf++] = (byte)((m_numElem >> 8) | 0x80); buf[iBuf++] = (byte)(m_numElem & 0xFF); } else if (m_numElem <= 0x1FFFFFFF) { buf[iBuf++] = (byte)((m_numElem >> 24) | 0xC0); buf[iBuf++] = (byte)((m_numElem >> 16) & 0xFF); buf[iBuf++] = (byte)((m_numElem >> 8) & 0xFF); buf[iBuf++] = (byte)((m_numElem) & 0xFF); } return buf; } buf = new byte[1]; buf[0] = (byte) (m_unmanagedType); return buf; } } } // 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
- AppDomainProtocolHandler.cs
- PinnedBufferMemoryStream.cs
- TypeEnumerableViewSchema.cs
- UIInitializationException.cs
- ModelItemImpl.cs
- AssociationEndMember.cs
- PaintEvent.cs
- PackagePartCollection.cs
- wgx_render.cs
- AmbientProperties.cs
- VisualBasicReference.cs
- ByteAnimationUsingKeyFrames.cs
- ServerValidateEventArgs.cs
- AudioException.cs
- MatrixAnimationUsingKeyFrames.cs
- DataGridrowEditEndingEventArgs.cs
- PeerNodeTraceRecord.cs
- ListInitExpression.cs
- DebugHandleTracker.cs
- TemplateControlParser.cs
- ClassHandlersStore.cs
- DataGridCellAutomationPeer.cs
- WebServiceMethodData.cs
- CodeArrayCreateExpression.cs
- HashSetEqualityComparer.cs
- SizeFConverter.cs
- HeaderLabel.cs
- ListBoxAutomationPeer.cs
- BaseDataBoundControl.cs
- PersonalizationEntry.cs
- ObjectDataSourceFilteringEventArgs.cs
- SelectionProviderWrapper.cs
- GradientStop.cs
- ToolStripArrowRenderEventArgs.cs
- glyphs.cs
- linebase.cs
- TreeViewTemplateSelector.cs
- StatusBarPanelClickEvent.cs
- TimeSpanConverter.cs
- JsonFormatReaderGenerator.cs
- ToolStripSystemRenderer.cs
- RegistryDataKey.cs
- VariableAction.cs
- AssemblyName.cs
- SmtpAuthenticationManager.cs
- StatusBarPanel.cs
- List.cs
- Image.cs
- RequestSecurityToken.cs
- TdsParameterSetter.cs
- StylusEventArgs.cs
- Vector3DConverter.cs
- CodeGenerator.cs
- XPathDocumentIterator.cs
- WebBrowserUriTypeConverter.cs
- SettingsProviderCollection.cs
- EntitySqlQueryState.cs
- DataSourceProvider.cs
- HtmlLink.cs
- SimpleApplicationHost.cs
- ImportDesigner.xaml.cs
- EntityModelSchemaGenerator.cs
- OleDbDataReader.cs
- NumberFormatInfo.cs
- CompositeActivityCodeGenerator.cs
- AlignmentYValidation.cs
- PostBackOptions.cs
- UniqueIdentifierService.cs
- ConditionalAttribute.cs
- SynchronizedInputProviderWrapper.cs
- InternalControlCollection.cs
- mediapermission.cs
- SecurityTokenTypes.cs
- OutKeywords.cs
- XmlSignatureManifest.cs
- ProcessHostMapPath.cs
- HtmlTableCell.cs
- SourceElementsCollection.cs
- SqlDelegatedTransaction.cs
- VectorCollection.cs
- UInt32Converter.cs
- StringUtil.cs
- MatrixTransform3D.cs
- FactoryGenerator.cs
- ZipIOCentralDirectoryDigitalSignature.cs
- BookmarkResumptionRecord.cs
- Timer.cs
- XmlTextWriter.cs
- PageTheme.cs
- StringExpressionSet.cs
- TdsParserStateObject.cs
- Stack.cs
- ClientOptions.cs
- TreeBuilderXamlTranslator.cs
- LogoValidationException.cs
- PackWebRequest.cs
- TextUtf8RawTextWriter.cs
- SmiMetaData.cs
- EntityDataSourceReferenceGroup.cs
- AdapterDictionary.cs