Code:
/ Net / Net / 3.5.50727.3053 / DEVDIV / depot / DevDiv / releases / whidbey / netfxsp / 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
- DocumentApplication.cs
- TextTreeUndoUnit.cs
- ObjectFactoryCodeDomTreeGenerator.cs
- FilterableAttribute.cs
- ScriptDescriptor.cs
- DesignOnlyAttribute.cs
- SoapIgnoreAttribute.cs
- RoutedPropertyChangedEventArgs.cs
- PrintDialogException.cs
- EventHandlersStore.cs
- SchemaEntity.cs
- DbTransaction.cs
- ResourceReferenceExpressionConverter.cs
- MemberRelationshipService.cs
- PrincipalPermission.cs
- Pens.cs
- XPathDocumentIterator.cs
- DesignTimeParseData.cs
- Latin1Encoding.cs
- VisualStyleTypesAndProperties.cs
- EventMemberCodeDomSerializer.cs
- RadioButtonStandardAdapter.cs
- ListBoxItemAutomationPeer.cs
- ManagementInstaller.cs
- InvalidPrinterException.cs
- HtmlToClrEventProxy.cs
- OleDbPropertySetGuid.cs
- _Connection.cs
- AssociationEndMember.cs
- XmlAutoDetectWriter.cs
- DrawingImage.cs
- ComplexBindingPropertiesAttribute.cs
- TriggerActionCollection.cs
- xml.cs
- BitmapEffectInputData.cs
- DataViewManagerListItemTypeDescriptor.cs
- NavigationProgressEventArgs.cs
- WindowsMenu.cs
- smtpconnection.cs
- BoundColumn.cs
- Header.cs
- Normalization.cs
- CategoryGridEntry.cs
- ExpressionNode.cs
- FullTrustAssembly.cs
- SHA384Managed.cs
- SeekStoryboard.cs
- CqlErrorHelper.cs
- WebControlParameterProxy.cs
- RuntimeConfig.cs
- TableLayoutCellPaintEventArgs.cs
- XamlPointCollectionSerializer.cs
- AsyncOperation.cs
- ForwardPositionQuery.cs
- VariableExpressionConverter.cs
- ObjectDataSourceView.cs
- GridViewRowPresenter.cs
- SoapHeaders.cs
- ParameterElement.cs
- ReadWriteSpinLock.cs
- XPathAncestorIterator.cs
- BrowserCapabilitiesFactory.cs
- ProfileManager.cs
- GCHandleCookieTable.cs
- LocatorPartList.cs
- TypedElement.cs
- BookmarkList.cs
- FocusTracker.cs
- xmlformatgeneratorstatics.cs
- WebPartDisplayModeEventArgs.cs
- Rotation3DAnimationUsingKeyFrames.cs
- SemaphoreFullException.cs
- StateItem.cs
- BamlResourceDeserializer.cs
- WrapPanel.cs
- NetworkCredential.cs
- VirtualizingStackPanel.cs
- ScaleTransform.cs
- newinstructionaction.cs
- LocatorGroup.cs
- SingleObjectCollection.cs
- ComplexTypeEmitter.cs
- GradientStop.cs
- ReferenceEqualityComparer.cs
- StructuredProperty.cs
- ReadOnlyTernaryTree.cs
- HttpDebugHandler.cs
- _Win32.cs
- CheckBox.cs
- StreamGeometry.cs
- Vector.cs
- StreamMarshaler.cs
- SByteStorage.cs
- Configuration.cs
- FederatedMessageSecurityOverHttpElement.cs
- PrintPreviewDialog.cs
- OrderPreservingPipeliningMergeHelper.cs
- PipelineComponent.cs
- AttachedPropertyMethodSelector.cs
- FixedTextPointer.cs