DrawingImage.cs source code in C# .NET

                        Code:
                         / DotNET / DotNET / 8.0 / untmp / WIN_WINDOWS / lh_tools_devdiv_wpf / Windows / wcp / Core / System / Windows / Media / Generated / DrawingImage.cs / 2 / DrawingImage.cs
                        
                        
                            //---------------------------------------------------------------------------- 
//
// 
//    Copyright (C) Microsoft Corporation.  All rights reserved.
//  
//
// This file was generated, please do not edit it directly. 
// 
// Please see [....]/default.aspx/Microsoft.Projects.Avalon/MilCodeGen.html for more information.
// 
//---------------------------------------------------------------------------

using MS.Internal;
using MS.Internal.KnownBoxes; 
using MS.Internal.Collections;
using MS.Internal.PresentationCore; 
using MS.Utility; 
using System;
using System.Collections; 
using System.Collections.Generic;
using System.ComponentModel;
using System.Diagnostics;
using System.Globalization; 
using System.Reflection;
using System.Runtime.InteropServices; 
using System.ComponentModel.Design.Serialization; 
using System.Text;
using System.Windows; 
using System.Windows.Media;
using System.Windows.Media.Effects;
using System.Windows.Media.Media3D;
using System.Windows.Media.Animation; 
using System.Windows.Media.Composition;
using System.Windows.Media.Imaging; 
using System.Windows.Markup; 
using System.Windows.Media.Converters;
using System.Security; 
using System.Security.Permissions;
using SR=MS.Internal.PresentationCore.SR;
using SRID=MS.Internal.PresentationCore.SRID;
// These types are aliased to match the unamanaged names used in interop 
using BOOL = System.UInt32;
using WORD = System.UInt16; 
using Float = System.Single; 

namespace System.Windows.Media 
{


 
    sealed partial class DrawingImage : ImageSource
    { 
        #region Constructors 

        //----------------------------------------------------- 
        //
        //  Constructors
        //
        //----------------------------------------------------- 

 
 

        #endregion Constructors 

        //------------------------------------------------------
        //
        //  Public Methods 
        //
        //----------------------------------------------------- 
 
        #region Public Methods
 
        /// 
        ///     Shadows inherited Clone() with a strongly typed
        ///     version for convenience.
        ///  
        public new DrawingImage Clone()
        { 
            return (DrawingImage)base.Clone(); 
        }
 
        /// 
        ///     Shadows inherited CloneCurrentValue() with a strongly typed
        ///     version for convenience.
        ///  
        public new DrawingImage CloneCurrentValue()
        { 
            return (DrawingImage)base.CloneCurrentValue(); 
        }
 



        #endregion Public Methods 

        //------------------------------------------------------ 
        // 
        //  Public Properties
        // 
        //------------------------------------------------------

        private static void DrawingPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
        { 

 
 
            if (e.IsASubPropertyChange)
            { 
                return;
            }

 
            DrawingImage target = ((DrawingImage) d);
 
 
            Drawing oldV = (Drawing) e.OldValue;
            Drawing newV = (Drawing) e.NewValue; 
            System.Windows.Threading.Dispatcher dispatcher = target.Dispatcher;

            if (dispatcher != null)
            { 
                DUCE.IResource targetResource = (DUCE.IResource)target;
                using (CompositionEngineLock.Acquire()) 
                { 
                    int channelCount = targetResource.GetChannelCount();
 
                    for (int channelIndex = 0; channelIndex < channelCount; channelIndex++)
                    {
                        DUCE.Channel channel = targetResource.GetChannel(channelIndex);
                        Debug.Assert(!channel.IsOutOfBandChannel); 
                        Debug.Assert(!targetResource.GetHandle(channel).IsNull);
                        target.ReleaseResource(oldV,channel); 
                        target.AddRefResource(newV,channel); 
                    }
                } 
            }

            target.PropertyChanged(DrawingProperty);
        } 

 
        #region Public Properties 

        ///  
        ///     Drawing - Drawing.  Default value is null.
        /// 
        public Drawing Drawing
        { 
            get
            { 
                return (Drawing) GetValue(DrawingProperty); 
            }
            set 
            {
                SetValueInternal(DrawingProperty, value);
            }
        } 

        #endregion Public Properties 
 
        //-----------------------------------------------------
        // 
        //  Protected Methods
        //
        //------------------------------------------------------
 
        #region Protected Methods
 
        ///  
        /// Implementation of Freezable.CreateInstanceCore.
        ///  
        /// The new Freezable.
        protected override Freezable CreateInstanceCore()
        {
            return new DrawingImage(); 
        }
 
 

        #endregion ProtectedMethods 

        //-----------------------------------------------------
        //
        //  Internal Methods 
        //
        //----------------------------------------------------- 
 
        #region Internal Methods
 
        /// 
        ///     Critical: This code calls into an unsafe code block
        ///     TreatAsSafe: This code does not return any critical data.It is ok to expose
        ///     Channels are safe to call into and do not go cross domain and cross process 
        /// 
        [SecurityCritical,SecurityTreatAsSafe] 
        internal override void UpdateResource(DUCE.Channel channel, bool skipOnChannelCheck) 
        {
            // If we're told we can skip the channel check, then we must be on channel 
            Debug.Assert(!skipOnChannelCheck || _duceResource.IsOnChannel(channel));

            if (skipOnChannelCheck || _duceResource.IsOnChannel(channel))
            { 
                base.UpdateResource(channel, skipOnChannelCheck);
 
                // Read values of properties into local variables 
                Drawing vDrawing = Drawing;
 
                // Obtain handles for properties that implement DUCE.IResource
                DUCE.ResourceHandle hDrawing = vDrawing != null ? ((DUCE.IResource)vDrawing).GetHandle(channel) : DUCE.ResourceHandle.Null;

                // Pack & send command packet 
                DUCE.MILCMD_DRAWINGIMAGE data;
                unsafe 
                { 
                    data.Type = MILCMD.MilCmdDrawingImage;
                    data.Handle = _duceResource.GetHandle(channel); 
                    data.hDrawing = hDrawing;

                    // Send packed command structure
                    channel.SendCommand( 
                        (byte*)&data,
                        sizeof(DUCE.MILCMD_DRAWINGIMAGE)); 
                } 
            }
        } 
        internal override DUCE.ResourceHandle AddRefOnChannelCore(DUCE.Channel channel)
        {

                if (_duceResource.CreateOrAddRefOnChannel(channel, System.Windows.Media.Composition.DUCE.ResourceType.TYPE_DRAWINGIMAGE)) 
                {
                    Drawing vDrawing = Drawing; 
                    if (vDrawing != null) ((DUCE.IResource)vDrawing).AddRefOnChannel(channel); 

                    AddRefOnChannelAnimations(channel); 


                    UpdateResource(channel, true /* skip "on channel" check - we already know that we're on channel */ );
                } 

                return _duceResource.GetHandle(channel); 
 
        }
        internal override void ReleaseOnChannelCore(DUCE.Channel channel) 
        {

                Debug.Assert(_duceResource.IsOnChannel(channel));
 
                if (_duceResource.ReleaseOnChannel(channel))
                { 
                    Drawing vDrawing = Drawing; 
                    if (vDrawing != null) ((DUCE.IResource)vDrawing).ReleaseOnChannel(channel);
 
                    ReleaseOnChannelAnimations(channel);

                }
 
        }
        internal override DUCE.ResourceHandle GetHandleCore(DUCE.Channel channel) 
        { 
            // Note that we are in a lock here already.
            return _duceResource.GetHandle(channel); 
        }
        internal override int GetChannelCountCore()
        {
            // must already be in composition lock here 
            return _duceResource.GetChannelCount();
        } 
        internal override DUCE.Channel GetChannelCore(int index) 
        {
            // Note that we are in a lock here already. 
            return _duceResource.GetChannel(index);
        }

 
        #endregion Internal Methods
 
        //----------------------------------------------------- 
        //
        //  Internal Properties 
        //
        //------------------------------------------------------

        #region Internal Properties 

        // 
        //  This property finds the correct initial size for the _effectiveValues store on the 
        //  current DependencyObject as a performance optimization
        // 
        //  This includes:
        //    Drawing
        //
        internal override int EffectiveValuesInitialSize 
        {
            get 
            { 
                return 1;
            } 
        }


 
        #endregion Internal Properties
 
        //----------------------------------------------------- 
        //
        //  Dependency Properties 
        //
        //------------------------------------------------------

        #region Dependency Properties 

        ///  
        ///     The DependencyProperty for the DrawingImage.Drawing property. 
        /// 
        public static readonly DependencyProperty DrawingProperty 
            = RegisterProperty("Drawing",
                               typeof(Drawing),
                               typeof(DrawingImage),
                               null, 
                               new PropertyChangedCallback(DrawingPropertyChanged),
                               null, 
                               /* isIndependentlyAnimated  = */ false, 
                               /* coerceValueCallback */ null);
 
        #endregion Dependency Properties

        //------------------------------------------------------
        // 
        //  Internal Fields
        // 
        //----------------------------------------------------- 

        #region Internal Fields 



        internal System.Windows.Media.Composition.DUCE.MultiChannelResource _duceResource = new System.Windows.Media.Composition.DUCE.MultiChannelResource(); 

 
 
        #endregion Internal Fields
 

    }
}

// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
// Copyright (c) Microsoft Corporation. All rights reserved.
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