Code:
/ Dotnetfx_Vista_SP2 / Dotnetfx_Vista_SP2 / 8.0.50727.4016 / DEVDIV / depot / DevDiv / releases / Orcas / QFE / 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
- PersonalizableAttribute.cs
- ClientConvert.cs
- SafeNativeMethods.cs
- AbsoluteQuery.cs
- cache.cs
- BehaviorEditorPart.cs
- MemoryPressure.cs
- NotImplementedException.cs
- WebUtil.cs
- Overlapped.cs
- ExpressionConverter.cs
- SessionEndingCancelEventArgs.cs
- CdpEqualityComparer.cs
- PlatformNotSupportedException.cs
- OracleDataReader.cs
- ContainerFilterService.cs
- BamlStream.cs
- webproxy.cs
- Int32Animation.cs
- ObjectQueryExecutionPlan.cs
- Bidi.cs
- DataGridCell.cs
- ChannelServices.cs
- TextParagraph.cs
- remotingproxy.cs
- ModulesEntry.cs
- CollectionMarkupSerializer.cs
- AnchorEditor.cs
- FixedDocumentSequencePaginator.cs
- BitmapPalettes.cs
- TraceHandler.cs
- EnumMemberAttribute.cs
- PublisherIdentityPermission.cs
- TemplateField.cs
- HotSpotCollection.cs
- WebConfigurationManager.cs
- CatalogZone.cs
- HtmlTernaryTree.cs
- FlowPosition.cs
- XmlSchemaObject.cs
- MethodExpr.cs
- Base64Encoder.cs
- ImageCollectionCodeDomSerializer.cs
- ViewManager.cs
- IpcChannel.cs
- NetworkStream.cs
- Reference.cs
- CaseInsensitiveHashCodeProvider.cs
- ButtonFieldBase.cs
- DriveInfo.cs
- DependencyObjectType.cs
- PublishLicense.cs
- DataGridBeginningEditEventArgs.cs
- WindowHideOrCloseTracker.cs
- Point4DConverter.cs
- StringReader.cs
- WebPartConnectionsEventArgs.cs
- KeyEventArgs.cs
- TreeNode.cs
- CorrelationScope.cs
- ConvertersCollection.cs
- MenuTracker.cs
- ImageField.cs
- CriticalFinalizerObject.cs
- HtmlTableCellCollection.cs
- Encoding.cs
- XmlSecureResolver.cs
- ExtenderHelpers.cs
- ButtonFieldBase.cs
- JoinElimination.cs
- ClientCredentials.cs
- SqlStream.cs
- _UriTypeConverter.cs
- TimeoutHelper.cs
- WhitespaceSignificantCollectionAttribute.cs
- StorageRoot.cs
- XmlSchemaGroup.cs
- ActivationServices.cs
- StreamGeometry.cs
- ConfigurationPropertyAttribute.cs
- SponsorHelper.cs
- TextLine.cs
- ReadOnlyNameValueCollection.cs
- URLString.cs
- CollectionConverter.cs
- StreamReader.cs
- BitSet.cs
- Token.cs
- _SingleItemRequestCache.cs
- BinaryOperationBinder.cs
- XamlWrappingReader.cs
- TimeSpanMinutesConverter.cs
- ClientSideQueueItem.cs
- SqlRowUpdatedEvent.cs
- Semaphore.cs
- SafeFileMapViewHandle.cs
- TextTreeText.cs
- SymmetricCryptoHandle.cs
- ListControlConvertEventArgs.cs
- HelloMessageApril2005.cs