Code:
/ Dotnetfx_Win7_3.5.1 / Dotnetfx_Win7_3.5.1 / 3.5.1 / DEVDIV / depot / DevDiv / releases / Orcas / NetFXw7 / wpf / src / Core / CSharp / System / Windows / Media / Imaging / PngBitmapEncoder.cs / 1 / PngBitmapEncoder.cs
//------------------------------------------------------------------------------ // Microsoft Avalon // Copyright (c) Microsoft Corporation, All Rights Reserved // // File: PngBitmapEncoder.cs // //----------------------------------------------------------------------------- using System; using System.Security; using System.Security.Permissions; using System.Collections; using System.ComponentModel; using System.ComponentModel.Design.Serialization; using System.Reflection; using MS.Internal; using MS.Win32.PresentationCore; using System.Diagnostics; using System.Windows.Media; using System.Globalization; using System.Runtime.InteropServices; namespace System.Windows.Media.Imaging { #region PngInterlaceOption ////// Possibile options for the interlaced setting. /// public enum PngInterlaceOption : int { ////// Let the encoder decide what is best. /// Default = 0, ////// Save as an interlaced bitmap. /// On = 1, ////// Do not save as an interlaced bitmap. /// Off = 2, } #endregion #region PngBitmapEncoder ////// Built-in Encoder for Png files. /// public sealed class PngBitmapEncoder : BitmapEncoder { #region Constructors ////// Constructor for PngBitmapEncoder /// ////// Critical - will eventually create unmanaged resources /// PublicOK - all inputs are verified /// [SecurityCritical ] public PngBitmapEncoder() : base(true) { _supportsPreview = false; _supportsGlobalThumbnail = false; _supportsGlobalMetadata = false; _supportsFrameThumbnails = false; _supportsMultipleFrames = false; _supportsFrameMetadata = true; } #endregion #region Public Properties ////// Encode this bitmap as interlaced. /// public PngInterlaceOption Interlace { get { return _interlaceOption; } set { _interlaceOption = value; } } #endregion #region Internal Properties / Methods ////// Returns the container format for this encoder /// ////// Critical - uses guid to create unmanaged resources /// internal override Guid ContainerFormat { [SecurityCritical] get { return _containerFormat; } } ////// Setups the encoder and other properties before encoding each frame /// ////// Critical - calls Critical Initialize() /// [SecurityCritical] internal override void SetupFrame(SafeMILHandle frameEncodeHandle, SafeMILHandle encoderOptions) { PROPBAG2 propBag = new PROPBAG2(); PROPVARIANT propValue = new PROPVARIANT(); // There is only one encoder option supported here: if (_interlaceOption != c_defaultInterlaceOption) { try { propBag.Init("InterlaceOption"); propValue.Init(_interlaceOption == PngInterlaceOption.On); HRESULT.Check(UnsafeNativeMethods.IPropertyBag2.Write( encoderOptions, 1, ref propBag, ref propValue)); } finally { propBag.Clear(); propValue.Clear(); } } HRESULT.Check(UnsafeNativeMethods.WICBitmapFrameEncode.Initialize( frameEncodeHandle, encoderOptions )); } #endregion #region Internal Abstract /// Need to implement this to derive from the "sealed" object internal override void SealObject() { throw new NotImplementedException(); } #endregion #region Data Members ////// Critical - CLSID used for creation of critical resources /// [SecurityCritical] private Guid _containerFormat = MILGuidData.GUID_ContainerFormatPng; private const PngInterlaceOption c_defaultInterlaceOption = PngInterlaceOption.Default; private PngInterlaceOption _interlaceOption = c_defaultInterlaceOption; #endregion } #endregion // PngBitmapEncoder } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. // Copyright (c) Microsoft Corporation. All rights reserved. //------------------------------------------------------------------------------ // Microsoft Avalon // Copyright (c) Microsoft Corporation, All Rights Reserved // // File: PngBitmapEncoder.cs // //----------------------------------------------------------------------------- using System; using System.Security; using System.Security.Permissions; using System.Collections; using System.ComponentModel; using System.ComponentModel.Design.Serialization; using System.Reflection; using MS.Internal; using MS.Win32.PresentationCore; using System.Diagnostics; using System.Windows.Media; using System.Globalization; using System.Runtime.InteropServices; namespace System.Windows.Media.Imaging { #region PngInterlaceOption ////// Possibile options for the interlaced setting. /// public enum PngInterlaceOption : int { ////// Let the encoder decide what is best. /// Default = 0, ////// Save as an interlaced bitmap. /// On = 1, ////// Do not save as an interlaced bitmap. /// Off = 2, } #endregion #region PngBitmapEncoder ////// Built-in Encoder for Png files. /// public sealed class PngBitmapEncoder : BitmapEncoder { #region Constructors ////// Constructor for PngBitmapEncoder /// ////// Critical - will eventually create unmanaged resources /// PublicOK - all inputs are verified /// [SecurityCritical ] public PngBitmapEncoder() : base(true) { _supportsPreview = false; _supportsGlobalThumbnail = false; _supportsGlobalMetadata = false; _supportsFrameThumbnails = false; _supportsMultipleFrames = false; _supportsFrameMetadata = true; } #endregion #region Public Properties ////// Encode this bitmap as interlaced. /// public PngInterlaceOption Interlace { get { return _interlaceOption; } set { _interlaceOption = value; } } #endregion #region Internal Properties / Methods ////// Returns the container format for this encoder /// ////// Critical - uses guid to create unmanaged resources /// internal override Guid ContainerFormat { [SecurityCritical] get { return _containerFormat; } } ////// Setups the encoder and other properties before encoding each frame /// ////// Critical - calls Critical Initialize() /// [SecurityCritical] internal override void SetupFrame(SafeMILHandle frameEncodeHandle, SafeMILHandle encoderOptions) { PROPBAG2 propBag = new PROPBAG2(); PROPVARIANT propValue = new PROPVARIANT(); // There is only one encoder option supported here: if (_interlaceOption != c_defaultInterlaceOption) { try { propBag.Init("InterlaceOption"); propValue.Init(_interlaceOption == PngInterlaceOption.On); HRESULT.Check(UnsafeNativeMethods.IPropertyBag2.Write( encoderOptions, 1, ref propBag, ref propValue)); } finally { propBag.Clear(); propValue.Clear(); } } HRESULT.Check(UnsafeNativeMethods.WICBitmapFrameEncode.Initialize( frameEncodeHandle, encoderOptions )); } #endregion #region Internal Abstract /// Need to implement this to derive from the "sealed" object internal override void SealObject() { throw new NotImplementedException(); } #endregion #region Data Members ////// Critical - CLSID used for creation of critical resources /// [SecurityCritical] private Guid _containerFormat = MILGuidData.GUID_ContainerFormatPng; private const PngInterlaceOption c_defaultInterlaceOption = PngInterlaceOption.Default; private PngInterlaceOption _interlaceOption = c_defaultInterlaceOption; #endregion } #endregion // PngBitmapEncoder } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. // Copyright (c) Microsoft Corporation. All rights reserved.
Link Menu
This book is available now!
Buy at Amazon US or
Buy at Amazon UK
- DocumentViewerHelper.cs
- AttributeData.cs
- ExpressionDumper.cs
- TaiwanLunisolarCalendar.cs
- MappedMetaModel.cs
- InfoCardSymmetricAlgorithm.cs
- IssuanceTokenProviderState.cs
- ParserOptions.cs
- LocalFileSettingsProvider.cs
- DoubleKeyFrameCollection.cs
- TextParaClient.cs
- StackSpiller.Bindings.cs
- ToolStripTextBox.cs
- ComponentEditorPage.cs
- GridViewItemAutomationPeer.cs
- ToolStripDropDownButton.cs
- mda.cs
- XmlILIndex.cs
- OutputCacheEntry.cs
- LinkedResourceCollection.cs
- DrawingContextWalker.cs
- RenderTargetBitmap.cs
- UserThread.cs
- GroupAggregateExpr.cs
- ManagementQuery.cs
- ExpressionsCollectionEditor.cs
- DocumentViewerAutomationPeer.cs
- CorrelationTokenTypeConvertor.cs
- ParserHooks.cs
- DependentList.cs
- SamlDelegatingWriter.cs
- WarningException.cs
- RenderData.cs
- LambdaCompiler.Logical.cs
- RealProxy.cs
- ExceptionHelpers.cs
- SmtpSection.cs
- XsltConvert.cs
- ReadOnlyDataSourceView.cs
- ProcessModelSection.cs
- RectKeyFrameCollection.cs
- TextRange.cs
- _CommandStream.cs
- HtmlTable.cs
- Tablet.cs
- XmlDataLoader.cs
- ToolStripOverflowButton.cs
- RawStylusInputReport.cs
- XmlReaderSettings.cs
- HttpException.cs
- versioninfo.cs
- QueryReaderSettings.cs
- uribuilder.cs
- VoiceInfo.cs
- ImageAnimator.cs
- Task.cs
- Size.cs
- RoutedEventArgs.cs
- AsyncContentLoadedEventArgs.cs
- ExpressionVisitor.cs
- PopupControlService.cs
- DataGridViewBand.cs
- KeyValueConfigurationElement.cs
- HandlerWithFactory.cs
- DataBindingHandlerAttribute.cs
- ContentFilePart.cs
- DoubleAnimationClockResource.cs
- TaskFileService.cs
- TraceSection.cs
- securestring.cs
- IOThreadTimer.cs
- FilterInvalidBodyAccessException.cs
- FormsAuthenticationModule.cs
- PreApplicationStartMethodAttribute.cs
- ResXBuildProvider.cs
- XPathSingletonIterator.cs
- DataServiceRequest.cs
- AssemblyFilter.cs
- BaseDataList.cs
- RowParagraph.cs
- CuspData.cs
- CodeMemberProperty.cs
- ColumnMap.cs
- SafeLibraryHandle.cs
- ComplexBindingPropertiesAttribute.cs
- PropertyTab.cs
- NetworkInformationException.cs
- ToolStripContentPanelDesigner.cs
- MatrixUtil.cs
- PcmConverter.cs
- SizeChangedEventArgs.cs
- ConnectionString.cs
- MatrixTransform.cs
- SourceFilter.cs
- BuildProviderAppliesToAttribute.cs
- SafeNativeMethods.cs
- SoapFormatExtensions.cs
- DependencyPropertyAttribute.cs
- TablePattern.cs
- ImpersonationContext.cs