Code:
/ Dotnetfx_Vista_SP2 / Dotnetfx_Vista_SP2 / 8.0.50727.4016 / DEVDIV / depot / DevDiv / releases / whidbey / NetFxQFE / 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
- WebSysDefaultValueAttribute.cs
- ServiceDescription.cs
- JournalNavigationScope.cs
- ParallelRangeManager.cs
- AppearanceEditorPart.cs
- ReadWriteSpinLock.cs
- Point3DIndependentAnimationStorage.cs
- CookieParameter.cs
- _RequestCacheProtocol.cs
- EditingCommands.cs
- WebServiceResponse.cs
- SectionVisual.cs
- ColumnWidthChangingEvent.cs
- ContentType.cs
- SByteConverter.cs
- GeometryHitTestResult.cs
- ContextQuery.cs
- CodeMethodReturnStatement.cs
- BackgroundWorker.cs
- Sequence.cs
- ObjectListItemCollection.cs
- BaseAppDomainProtocolHandler.cs
- SkewTransform.cs
- ModuleElement.cs
- FtpRequestCacheValidator.cs
- DataGridViewRowCancelEventArgs.cs
- PrintPreviewDialog.cs
- SoapIncludeAttribute.cs
- CodeNamespaceImport.cs
- DataSvcMapFileSerializer.cs
- DataServiceException.cs
- XmlILIndex.cs
- ResXDataNode.cs
- Matrix3DConverter.cs
- FormatException.cs
- BasicExpandProvider.cs
- ProcessStartInfo.cs
- CellIdBoolean.cs
- TypeDelegator.cs
- DefaultWorkflowLoaderService.cs
- ETagAttribute.cs
- HttpEncoderUtility.cs
- LastQueryOperator.cs
- IriParsingElement.cs
- TableLayoutPanelResizeGlyph.cs
- HttpModulesSection.cs
- TokenizerHelper.cs
- SHA256.cs
- MemberPathMap.cs
- ShaderEffect.cs
- Errors.cs
- XmlMtomReader.cs
- DiscoveryViaBehavior.cs
- BuildProvidersCompiler.cs
- DLinqTableProvider.cs
- WebPartActionVerb.cs
- BinaryObjectReader.cs
- TargetParameterCountException.cs
- WebPartConnectionCollection.cs
- MouseCaptureWithinProperty.cs
- FormViewPagerRow.cs
- PanelStyle.cs
- StatusStrip.cs
- CombinedGeometry.cs
- SessionSwitchEventArgs.cs
- SchemaCollectionPreprocessor.cs
- WebPartDeleteVerb.cs
- WorkflowOwnershipException.cs
- DelegatingConfigHost.cs
- TextProperties.cs
- CellIdBoolean.cs
- MemberAssignmentAnalysis.cs
- InvalidOperationException.cs
- WindowsGrip.cs
- X509ChainElement.cs
- PropertyTabAttribute.cs
- ConfigurationManagerInternal.cs
- KeyValuePairs.cs
- SecurityTokenValidationException.cs
- StorageInfo.cs
- ReadOnlyDataSourceView.cs
- MDIControlStrip.cs
- NumericUpDownAcceleration.cs
- StopStoryboard.cs
- TableCellAutomationPeer.cs
- FacetDescriptionElement.cs
- SqlRetyper.cs
- DataGridColumnHeaderItemAutomationPeer.cs
- EncryptedKeyIdentifierClause.cs
- SamlNameIdentifierClaimResource.cs
- UnsignedPublishLicense.cs
- GeneralTransformCollection.cs
- TransformCollection.cs
- WindowsAuthenticationModule.cs
- DataGridViewCheckBoxCell.cs
- ThreadAttributes.cs
- BezierSegment.cs
- CompositionAdorner.cs
- ObjectManager.cs
- UnmanagedMemoryStreamWrapper.cs