|
//------------------------------------------------------------------------------
// Microsoft Avalon
// Copyright (c) Microsoft Corporation, All Rights Reserved
//
// File: BmpBitmapEncoder.cs
//
//------------------------------------------------------------------------------
using System;
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 MS.Win32.PresentationCore;
using System.Diagnostics;
using System.Windows.Media;
using System.Globalization;
using System.Windows.Media.Imaging;
namespace System.Windows.Media.Imaging
{
#region BmpBitmapEncoder
/// <summary>
/// Built-in Encoder for Bmp files.
/// </summary>
public sealed class BmpBitmapEncoder : BitmapEncoder
{
#region Constructors
/// <summary>
/// Constructor for BmpBitmapEncoder
/// </summary>
/// <SecurityNote>
/// Critical - will eventually create unmanaged resources
/// PublicOK - all inputs are verified
/// </SecurityNote>
[SecurityCritical ]
public BmpBitmapEncoder() :
base(true)
{
_supportsPreview = false;
_supportsGlobalThumbnail = false;
_supportsGlobalMetadata = false;
_supportsFrameThumbnails = false;
_supportsMultipleFrames = false;
_supportsFrameMetadata = false;
}
#endregion
#region Internal Properties / Methods
/// <summary>
/// Returns the container format for this encoder
/// </summary>
/// <SecurityNote>
/// Critical - uses guid to create unmanaged resources
/// </SecurityNote>
internal override Guid ContainerFormat
{
[SecurityCritical]
get
{
return _containerFormat;
}
}
/// <summary>
/// Setups the encoder and other properties before encoding each frame
/// </summary>
/// <SecurityNote>
/// Critical - calls Critical Initialize()
/// </SecurityNote>
[SecurityCritical]
internal override void SetupFrame(SafeMILHandle frameEncodeHandle, SafeMILHandle encoderOptions)
{
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
/// <SecurityNote>
/// Critical - CLSID used for creation of critical resources
/// </SecurityNote>
[SecurityCritical]
private Guid _containerFormat = MILGuidData.GUID_ContainerFormatBmp;
#endregion
}
#endregion // BmpBitmapEncoder
}
|