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 / InplaceBitmapMetadataWriter.cs / 1 / InplaceBitmapMetadataWriter.cs
//------------------------------------------------------------------------------ // Microsoft Avalon // Copyright (c) Microsoft Corporation, All Rights Reserved // // File: InPlaceBitmapMetadataWriter.cs // //----------------------------------------------------------------------------- using System; using System.Collections; using System.Collections.Generic; using System.Collections.Specialized; using System.ComponentModel; using System.ComponentModel.Design.Serialization; using System.Reflection; using MS.Internal; using MS.Win32.PresentationCore; using System.Diagnostics; using System.Globalization; using System.Runtime.InteropServices; using System.Xml; using System.IO; using System.Security; using System.Security.Permissions; using System.Windows.Media.Imaging; using System.Windows.Threading; using System.Text; using MS.Internal.PresentationCore; // SecurityHelper namespace System.Windows.Media.Imaging { #region InPlaceBitmapMetadataWriter ////// Metadata Class for BitmapImage. /// sealed public partial class InPlaceBitmapMetadataWriter : BitmapMetadata { #region Constructors ////// /// private InPlaceBitmapMetadataWriter() { } ////// /// ////// Critical - Accesses critical resources /// [SecurityCritical] internal InPlaceBitmapMetadataWriter( SafeMILHandle /* IWICFastMetadataEncoder */ fmeHandle, SafeMILHandle /* IWICMetadataQueryWriter */ metadataHandle, object syncObject ) : base(metadataHandle, false, false, syncObject) { _fmeHandle = fmeHandle; } ////// /// ////// Critical - Accesses unmanaged code /// TreatAsSafe - inputs are verified or safe /// [SecurityCritical, SecurityTreatAsSafe] static internal InPlaceBitmapMetadataWriter CreateFromFrameDecode(BitmapSourceSafeMILHandle frameHandle, object syncObject) { Invariant.Assert(frameHandle != null); SafeMILHandle /* IWICFastMetadataEncoder */ fmeHandle = null; SafeMILHandle /* IWICMetadataQueryWriter */ metadataHandle = null; using (FactoryMaker factoryMaker = new FactoryMaker()) { lock (syncObject) { HRESULT.Check(UnsafeNativeMethods.WICImagingFactory.CreateFastMetadataEncoderFromFrameDecode( factoryMaker.ImagingFactoryPtr, frameHandle, out fmeHandle)); } } HRESULT.Check(UnsafeNativeMethods.WICFastMetadataEncoder.GetMetadataQueryWriter( fmeHandle, out metadataHandle)); return new InPlaceBitmapMetadataWriter(fmeHandle, metadataHandle, syncObject); } ////// /// ////// Critical - Accesses unmanaged code /// TreatAsSafe - inputs are verified or safe /// [SecurityCritical, SecurityTreatAsSafe] static internal InPlaceBitmapMetadataWriter CreateFromDecoder(SafeMILHandle decoderHandle, object syncObject) { Invariant.Assert(decoderHandle != null); SafeMILHandle /* IWICFastMetadataEncoder */ fmeHandle = null; SafeMILHandle /* IWICMetadataQueryWriter */ metadataHandle = null; using (FactoryMaker factoryMaker = new FactoryMaker()) { lock (syncObject) { HRESULT.Check(UnsafeNativeMethods.WICImagingFactory.CreateFastMetadataEncoderFromDecoder( factoryMaker.ImagingFactoryPtr, decoderHandle, out fmeHandle)); } } HRESULT.Check(UnsafeNativeMethods.WICFastMetadataEncoder.GetMetadataQueryWriter( fmeHandle, out metadataHandle)); return new InPlaceBitmapMetadataWriter(fmeHandle, metadataHandle, syncObject); } ////// /// ////// Critical - Accesses unmanaged code /// PublicOK - inputs are verified or safe /// [SecurityCritical ] public bool TrySave() { int hr; Invariant.Assert(_fmeHandle != null); lock (SyncObject) { hr = UnsafeNativeMethods.WICFastMetadataEncoder.Commit(_fmeHandle); } return HRESULT.Succeeded(hr); } #endregion #region Freezable ////// Shadows inherited Copy() with a strongly typed /// version for convenience. /// public new InPlaceBitmapMetadataWriter Clone() { return (InPlaceBitmapMetadataWriter)base.Clone(); } ////// Implementation of ///Freezable.CreateInstanceCore . ///The new Freezable. protected override Freezable CreateInstanceCore() { throw new InvalidOperationException(SR.Get(SRID.Image_InplaceMetadataNoCopy)); } ////// Implementation of protected override void CloneCore(Freezable sourceFreezable) { throw new InvalidOperationException(SR.Get(SRID.Image_InplaceMetadataNoCopy)); } ///Freezable.CloneCore . ////// Implementation of protected override void CloneCurrentValueCore(Freezable sourceFreezable) { throw new InvalidOperationException(SR.Get(SRID.Image_InplaceMetadataNoCopy)); } ///Freezable.CloneCurrentValueCore . ////// Implementation of protected override void GetAsFrozenCore(Freezable sourceFreezable) { throw new InvalidOperationException(SR.Get(SRID.Image_InplaceMetadataNoCopy)); } ///Freezable.GetAsFrozenCore . ////// Implementation of protected override void GetCurrentValueAsFrozenCore(Freezable sourceFreezable) { throw new InvalidOperationException(SR.Get(SRID.Image_InplaceMetadataNoCopy)); } #endregion ///Freezable.GetCurrentValueAsFrozenCore . ////// Critical - pointer to an unmanaged object that methods are called on. /// [SecurityCritical] private SafeMILHandle _fmeHandle; } #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: InPlaceBitmapMetadataWriter.cs // //----------------------------------------------------------------------------- using System; using System.Collections; using System.Collections.Generic; using System.Collections.Specialized; using System.ComponentModel; using System.ComponentModel.Design.Serialization; using System.Reflection; using MS.Internal; using MS.Win32.PresentationCore; using System.Diagnostics; using System.Globalization; using System.Runtime.InteropServices; using System.Xml; using System.IO; using System.Security; using System.Security.Permissions; using System.Windows.Media.Imaging; using System.Windows.Threading; using System.Text; using MS.Internal.PresentationCore; // SecurityHelper namespace System.Windows.Media.Imaging { #region InPlaceBitmapMetadataWriter ////// Metadata Class for BitmapImage. /// sealed public partial class InPlaceBitmapMetadataWriter : BitmapMetadata { #region Constructors ////// /// private InPlaceBitmapMetadataWriter() { } ////// /// ////// Critical - Accesses critical resources /// [SecurityCritical] internal InPlaceBitmapMetadataWriter( SafeMILHandle /* IWICFastMetadataEncoder */ fmeHandle, SafeMILHandle /* IWICMetadataQueryWriter */ metadataHandle, object syncObject ) : base(metadataHandle, false, false, syncObject) { _fmeHandle = fmeHandle; } ////// /// ////// Critical - Accesses unmanaged code /// TreatAsSafe - inputs are verified or safe /// [SecurityCritical, SecurityTreatAsSafe] static internal InPlaceBitmapMetadataWriter CreateFromFrameDecode(BitmapSourceSafeMILHandle frameHandle, object syncObject) { Invariant.Assert(frameHandle != null); SafeMILHandle /* IWICFastMetadataEncoder */ fmeHandle = null; SafeMILHandle /* IWICMetadataQueryWriter */ metadataHandle = null; using (FactoryMaker factoryMaker = new FactoryMaker()) { lock (syncObject) { HRESULT.Check(UnsafeNativeMethods.WICImagingFactory.CreateFastMetadataEncoderFromFrameDecode( factoryMaker.ImagingFactoryPtr, frameHandle, out fmeHandle)); } } HRESULT.Check(UnsafeNativeMethods.WICFastMetadataEncoder.GetMetadataQueryWriter( fmeHandle, out metadataHandle)); return new InPlaceBitmapMetadataWriter(fmeHandle, metadataHandle, syncObject); } ////// /// ////// Critical - Accesses unmanaged code /// TreatAsSafe - inputs are verified or safe /// [SecurityCritical, SecurityTreatAsSafe] static internal InPlaceBitmapMetadataWriter CreateFromDecoder(SafeMILHandle decoderHandle, object syncObject) { Invariant.Assert(decoderHandle != null); SafeMILHandle /* IWICFastMetadataEncoder */ fmeHandle = null; SafeMILHandle /* IWICMetadataQueryWriter */ metadataHandle = null; using (FactoryMaker factoryMaker = new FactoryMaker()) { lock (syncObject) { HRESULT.Check(UnsafeNativeMethods.WICImagingFactory.CreateFastMetadataEncoderFromDecoder( factoryMaker.ImagingFactoryPtr, decoderHandle, out fmeHandle)); } } HRESULT.Check(UnsafeNativeMethods.WICFastMetadataEncoder.GetMetadataQueryWriter( fmeHandle, out metadataHandle)); return new InPlaceBitmapMetadataWriter(fmeHandle, metadataHandle, syncObject); } ////// /// ////// Critical - Accesses unmanaged code /// PublicOK - inputs are verified or safe /// [SecurityCritical ] public bool TrySave() { int hr; Invariant.Assert(_fmeHandle != null); lock (SyncObject) { hr = UnsafeNativeMethods.WICFastMetadataEncoder.Commit(_fmeHandle); } return HRESULT.Succeeded(hr); } #endregion #region Freezable ////// Shadows inherited Copy() with a strongly typed /// version for convenience. /// public new InPlaceBitmapMetadataWriter Clone() { return (InPlaceBitmapMetadataWriter)base.Clone(); } ////// Implementation of ///Freezable.CreateInstanceCore . ///The new Freezable. protected override Freezable CreateInstanceCore() { throw new InvalidOperationException(SR.Get(SRID.Image_InplaceMetadataNoCopy)); } ////// Implementation of protected override void CloneCore(Freezable sourceFreezable) { throw new InvalidOperationException(SR.Get(SRID.Image_InplaceMetadataNoCopy)); } ///Freezable.CloneCore . ////// Implementation of protected override void CloneCurrentValueCore(Freezable sourceFreezable) { throw new InvalidOperationException(SR.Get(SRID.Image_InplaceMetadataNoCopy)); } ///Freezable.CloneCurrentValueCore . ////// Implementation of protected override void GetAsFrozenCore(Freezable sourceFreezable) { throw new InvalidOperationException(SR.Get(SRID.Image_InplaceMetadataNoCopy)); } ///Freezable.GetAsFrozenCore . ////// Implementation of protected override void GetCurrentValueAsFrozenCore(Freezable sourceFreezable) { throw new InvalidOperationException(SR.Get(SRID.Image_InplaceMetadataNoCopy)); } #endregion ///Freezable.GetCurrentValueAsFrozenCore . ////// Critical - pointer to an unmanaged object that methods are called on. /// [SecurityCritical] private SafeMILHandle _fmeHandle; } #endregion } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. // Copyright (c) Microsoft Corporation. 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