Code:
/ 4.0 / 4.0 / DEVDIV_TFS / Dev10 / Releases / RTMRel / wpf / src / Core / CSharp / System / Windows / Media / Imaging / GifBitmapDecoder.cs / 1305600 / GifBitmapDecoder.cs
//------------------------------------------------------------------------------ // Microsoft Avalon // Copyright (c) Microsoft Corporation, All Rights Reserved // // File: GifBitmapDecoder.cs // //----------------------------------------------------------------------------- using System; using System.IO; using System.Collections; using System.Security; using System.Security.Permissions; using System.ComponentModel; using System.ComponentModel.Design.Serialization; using System.Reflection; using MS.Internal; using Microsoft.Win32.SafeHandles; using System.Diagnostics; using System.Windows.Media; using System.Globalization; using System.Runtime.InteropServices; namespace System.Windows.Media.Imaging { #region GifBitmapDecoder ////// The built-in Microsoft Gif (Bitmap) Decoder. /// public sealed class GifBitmapDecoder : BitmapDecoder { ////// Don't allow construction of a decoder with no params /// private GifBitmapDecoder() { } ////// Create a GifBitmapDecoder given the Uri /// /// Uri to decode /// Bitmap Create Options /// Bitmap Caching Option ////// Critical - access critical resource /// PublicOK - inputs verified or safe /// [SecurityCritical ] public GifBitmapDecoder( Uri bitmapUri, BitmapCreateOptions createOptions, BitmapCacheOption cacheOption ) : base(bitmapUri, createOptions, cacheOption, MILGuidData.GUID_ContainerFormatGif) { } ////// If this decoder cannot handle the bitmap stream, it will throw an exception. /// /// Stream to decode /// Bitmap Create Options /// Bitmap Caching Option ////// Critical - access critical resource /// PublicOK - inputs verified or safe /// [SecurityCritical ] public GifBitmapDecoder( Stream bitmapStream, BitmapCreateOptions createOptions, BitmapCacheOption cacheOption ) : base(bitmapStream, createOptions, cacheOption, MILGuidData.GUID_ContainerFormatGif) { } ////// Internal Constructor /// ////// Critical: Uses a SafeFileHandle, which is a SecurityCritical type (in v4). /// Calls SecurityCritical base class constructor. /// [SecurityCritical] internal GifBitmapDecoder( SafeMILHandle decoderHandle, BitmapDecoder decoder, Uri baseUri, Uri uri, Stream stream, BitmapCreateOptions createOptions, BitmapCacheOption cacheOption, bool insertInDecoderCache, bool originalWritable, Stream uriStream, UnmanagedMemoryStream unmanagedMemoryStream , SafeFileHandle safeFilehandle ) : base(decoderHandle, decoder, baseUri, uri, stream, createOptions, cacheOption, insertInDecoderCache, originalWritable, uriStream, unmanagedMemoryStream, safeFilehandle) { } #region Internal Abstract /// Need to implement this to derive from the "sealed" object internal override void SealObject() { throw new NotImplementedException(); } #endregion } #endregion } // 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: GifBitmapDecoder.cs // //----------------------------------------------------------------------------- using System; using System.IO; using System.Collections; using System.Security; using System.Security.Permissions; using System.ComponentModel; using System.ComponentModel.Design.Serialization; using System.Reflection; using MS.Internal; using Microsoft.Win32.SafeHandles; using System.Diagnostics; using System.Windows.Media; using System.Globalization; using System.Runtime.InteropServices; namespace System.Windows.Media.Imaging { #region GifBitmapDecoder ////// The built-in Microsoft Gif (Bitmap) Decoder. /// public sealed class GifBitmapDecoder : BitmapDecoder { ////// Don't allow construction of a decoder with no params /// private GifBitmapDecoder() { } ////// Create a GifBitmapDecoder given the Uri /// /// Uri to decode /// Bitmap Create Options /// Bitmap Caching Option ////// Critical - access critical resource /// PublicOK - inputs verified or safe /// [SecurityCritical ] public GifBitmapDecoder( Uri bitmapUri, BitmapCreateOptions createOptions, BitmapCacheOption cacheOption ) : base(bitmapUri, createOptions, cacheOption, MILGuidData.GUID_ContainerFormatGif) { } ////// If this decoder cannot handle the bitmap stream, it will throw an exception. /// /// Stream to decode /// Bitmap Create Options /// Bitmap Caching Option ////// Critical - access critical resource /// PublicOK - inputs verified or safe /// [SecurityCritical ] public GifBitmapDecoder( Stream bitmapStream, BitmapCreateOptions createOptions, BitmapCacheOption cacheOption ) : base(bitmapStream, createOptions, cacheOption, MILGuidData.GUID_ContainerFormatGif) { } ////// Internal Constructor /// ////// Critical: Uses a SafeFileHandle, which is a SecurityCritical type (in v4). /// Calls SecurityCritical base class constructor. /// [SecurityCritical] internal GifBitmapDecoder( SafeMILHandle decoderHandle, BitmapDecoder decoder, Uri baseUri, Uri uri, Stream stream, BitmapCreateOptions createOptions, BitmapCacheOption cacheOption, bool insertInDecoderCache, bool originalWritable, Stream uriStream, UnmanagedMemoryStream unmanagedMemoryStream , SafeFileHandle safeFilehandle ) : base(decoderHandle, decoder, baseUri, uri, stream, createOptions, cacheOption, insertInDecoderCache, originalWritable, uriStream, unmanagedMemoryStream, safeFilehandle) { } #region Internal Abstract /// Need to implement this to derive from the "sealed" object internal override void SealObject() { throw new NotImplementedException(); } #endregion } #endregion } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. // Copyright (c) Microsoft Corporation. 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