Code:
/ 4.0 / 4.0 / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / fx / src / CommonUI / System / Drawing / Brush.cs / 1305376 / Brush.cs
//------------------------------------------------------------------------------ //// Copyright (c) Microsoft Corporation. All rights reserved. // //----------------------------------------------------------------------------- namespace System.Drawing { using System.Runtime.InteropServices; using System.Diagnostics; using System; using System.ComponentModel; using Microsoft.Win32; using System.Drawing; using System.Drawing.Internal; using System.Globalization; using System.Security; using System.Security.Permissions; /** * Represent a Brush object */ ////// /// public abstract class Brush : MarshalByRefObject, ICloneable, IDisposable { #if FINALIZATION_WATCH private string allocationSite = Graphics.GetAllocationStack(); #endif // handle to native GDI+ brush object to be used on demand. ////// Classes derrived from this abstract base class define objects used to fill the /// interiors of graphical shapes such as rectangles, ellipses, pies, polygons, and paths. /// ///private IntPtr nativeBrush; /// /// /// When overriden in a derived class, creates /// an exact copy of this public abstract object Clone(); ///. /// /// Sets the native GDI+ brush reference. /// Note: This method is intended to be used by derived classes only! (internal protected doesn't work as in C++). /// protected internal void SetNativeBrush(IntPtr brush) { SecurityPermission permission = new SecurityPermission(SecurityPermissionFlag.UnmanagedCode); permission.Demand(); SetNativeBrushInternal(brush); } internal void SetNativeBrushInternal(IntPtr brush) { Debug.Assert( brush != IntPtr.Zero, "WARNING: Assigning null to the GDI+ native brush object."); Debug.Assert( this.nativeBrush == IntPtr.Zero, "WARNING: Initialized GDI+ native brush object being assigned a new value."); this.nativeBrush = brush; } ////// Gets the GDI+ native object reference. Triggers GDI+ obect initialization. /// [Browsable(false), EditorBrowsable(EditorBrowsableState.Never)] internal IntPtr NativeBrush { [System.Runtime.TargetedPatchingOptOutAttribute("Performance critical to inline across NGen image boundaries")] get { //Need to comment this line out to allow for checking this.NativePen == IntPtr.Zero. //Debug.Assert(this.nativeBrush != IntPtr.Zero, "this.nativeBrush == null." ); return this.nativeBrush; } } ////// /// public void Dispose() { Dispose(true); GC.SuppressFinalize(this); } ////// Deletes this ///. /// protected virtual void Dispose(bool disposing) { #if FINALIZATION_WATCH if (!disposing && nativeBrush != IntPtr.Zero ) Debug.WriteLine("**********************\nDisposed through finalization:\n" + allocationSite); #endif if (this.nativeBrush != IntPtr.Zero) { try{ #if DEBUG int status = #endif SafeNativeMethods.Gdip.GdipDeleteBrush(new HandleRef(this, this.nativeBrush)); #if DEBUG Debug.Assert(status == SafeNativeMethods.Gdip.Ok, "GDI+ returned an error status: " + status.ToString(CultureInfo.InvariantCulture)); #endif } catch( Exception ex ){ if( ClientUtils.IsSecurityOrCriticalException( ex ) ) { throw; } Debug.Fail( "Exception thrown during Dispose: " + ex.ToString() ); } finally{ this.nativeBrush = IntPtr.Zero; } } } /** * Object cleanup */ /// /// /// ~Brush() { Dispose(false); } } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. //------------------------------------------------------------------------------ ///// Releases memory allocated for this ///. /// // Copyright (c) Microsoft Corporation. All rights reserved. // //----------------------------------------------------------------------------- namespace System.Drawing { using System.Runtime.InteropServices; using System.Diagnostics; using System; using System.ComponentModel; using Microsoft.Win32; using System.Drawing; using System.Drawing.Internal; using System.Globalization; using System.Security; using System.Security.Permissions; /** * Represent a Brush object */ ////// /// public abstract class Brush : MarshalByRefObject, ICloneable, IDisposable { #if FINALIZATION_WATCH private string allocationSite = Graphics.GetAllocationStack(); #endif // handle to native GDI+ brush object to be used on demand. ////// Classes derrived from this abstract base class define objects used to fill the /// interiors of graphical shapes such as rectangles, ellipses, pies, polygons, and paths. /// ///private IntPtr nativeBrush; /// /// /// When overriden in a derived class, creates /// an exact copy of this public abstract object Clone(); ///. /// /// Sets the native GDI+ brush reference. /// Note: This method is intended to be used by derived classes only! (internal protected doesn't work as in C++). /// protected internal void SetNativeBrush(IntPtr brush) { SecurityPermission permission = new SecurityPermission(SecurityPermissionFlag.UnmanagedCode); permission.Demand(); SetNativeBrushInternal(brush); } internal void SetNativeBrushInternal(IntPtr brush) { Debug.Assert( brush != IntPtr.Zero, "WARNING: Assigning null to the GDI+ native brush object."); Debug.Assert( this.nativeBrush == IntPtr.Zero, "WARNING: Initialized GDI+ native brush object being assigned a new value."); this.nativeBrush = brush; } ////// Gets the GDI+ native object reference. Triggers GDI+ obect initialization. /// [Browsable(false), EditorBrowsable(EditorBrowsableState.Never)] internal IntPtr NativeBrush { [System.Runtime.TargetedPatchingOptOutAttribute("Performance critical to inline across NGen image boundaries")] get { //Need to comment this line out to allow for checking this.NativePen == IntPtr.Zero. //Debug.Assert(this.nativeBrush != IntPtr.Zero, "this.nativeBrush == null." ); return this.nativeBrush; } } ////// /// public void Dispose() { Dispose(true); GC.SuppressFinalize(this); } ////// Deletes this ///. /// protected virtual void Dispose(bool disposing) { #if FINALIZATION_WATCH if (!disposing && nativeBrush != IntPtr.Zero ) Debug.WriteLine("**********************\nDisposed through finalization:\n" + allocationSite); #endif if (this.nativeBrush != IntPtr.Zero) { try{ #if DEBUG int status = #endif SafeNativeMethods.Gdip.GdipDeleteBrush(new HandleRef(this, this.nativeBrush)); #if DEBUG Debug.Assert(status == SafeNativeMethods.Gdip.Ok, "GDI+ returned an error status: " + status.ToString(CultureInfo.InvariantCulture)); #endif } catch( Exception ex ){ if( ClientUtils.IsSecurityOrCriticalException( ex ) ) { throw; } Debug.Fail( "Exception thrown during Dispose: " + ex.ToString() ); } finally{ this.nativeBrush = IntPtr.Zero; } } } /** * Object cleanup */ /// /// /// ~Brush() { Dispose(false); } } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007./// Releases memory allocated for this ///. ///
Link Menu
This book is available now!
Buy at Amazon US or
Buy at Amazon UK
- filewebresponse.cs
- MailHeaderInfo.cs
- Imaging.cs
- BitmapEffect.cs
- Transform3DCollection.cs
- ConstantSlot.cs
- ObjectSet.cs
- COM2AboutBoxPropertyDescriptor.cs
- SizeChangedEventArgs.cs
- SoapIgnoreAttribute.cs
- BmpBitmapEncoder.cs
- DecoderExceptionFallback.cs
- LinkLabel.cs
- WindowsFormsEditorServiceHelper.cs
- UnconditionalPolicy.cs
- UriParserTemplates.cs
- keycontainerpermission.cs
- VarRefManager.cs
- ItemsChangedEventArgs.cs
- ScrollProviderWrapper.cs
- DataServiceEntityAttribute.cs
- WindowsTab.cs
- TextContainerChangeEventArgs.cs
- ConfigXmlCDataSection.cs
- BamlWriter.cs
- FixedSOMGroup.cs
- ListChangedEventArgs.cs
- SpecularMaterial.cs
- UrlParameterReader.cs
- CrossAppDomainChannel.cs
- ConstraintManager.cs
- ToolStripPanelCell.cs
- SessionPageStatePersister.cs
- ShaderRenderModeValidation.cs
- InvalidComObjectException.cs
- DataBoundControlHelper.cs
- AutoResetEvent.cs
- DescendantOverDescendantQuery.cs
- SafeArrayRankMismatchException.cs
- DNS.cs
- Knowncolors.cs
- MenuItem.cs
- ToolboxDataAttribute.cs
- OleDbDataReader.cs
- SignerInfo.cs
- InfoCardKeyedHashAlgorithm.cs
- FormViewDeletedEventArgs.cs
- ContainerUtilities.cs
- ToolStripProgressBar.cs
- NamespaceInfo.cs
- DataSourceGeneratorException.cs
- NullReferenceException.cs
- PartialClassGenerationTaskInternal.cs
- StylusButtonEventArgs.cs
- QuerySetOp.cs
- BrowserTree.cs
- SqlDataSourceDesigner.cs
- CorrelationToken.cs
- PreDigestedSignedInfo.cs
- DockPattern.cs
- UnsafeNativeMethods.cs
- IPAddressCollection.cs
- SamlAdvice.cs
- ListBoxItem.cs
- StyleXamlParser.cs
- RuleSetReference.cs
- WebServiceEnumData.cs
- SettingsPropertyIsReadOnlyException.cs
- EnvelopedSignatureTransform.cs
- DurableInstanceProvider.cs
- SystemTcpStatistics.cs
- SplineKeyFrames.cs
- ToolboxComponentsCreatingEventArgs.cs
- FileLoadException.cs
- ApplicationInfo.cs
- SoapObjectInfo.cs
- X509Certificate.cs
- MSHTMLHostUtil.cs
- StyleCollection.cs
- DetailsViewRowCollection.cs
- objectresult_tresulttype.cs
- XmlnsDictionary.cs
- Parsers.cs
- wgx_sdk_version.cs
- GenericTextProperties.cs
- ToolboxItemAttribute.cs
- TextBreakpoint.cs
- HelpInfo.cs
- MatrixAnimationUsingPath.cs
- ResourceExpressionBuilder.cs
- BindingNavigatorDesigner.cs
- ImageListStreamer.cs
- MappingMetadataHelper.cs
- Identity.cs
- FileDialog.cs
- WindowsSpinner.cs
- PageParserFilter.cs
- LocalizableResourceBuilder.cs
- ConnectionPoolManager.cs
- NetTcpBindingElement.cs