RenderOptions.cs source code in C# .NET

                        Code:
                         / 4.0 / 4.0 / untmp / DEVDIV_TFS / Dev10 / Releases / RTMRel / wpf / src / Core / CSharp / System / Windows / Media / RenderOptions.cs / 1305600 / RenderOptions.cs
                        
                        
                            //------------------------------------------------------------------------------ 
//
// 
//    Copyright (C) Microsoft Corporation.  All rights reserved.
//  
//
// Description: 
//      The RenderOptions class provides definitions of attached properties 
//      which will control rendering.
// 
//-----------------------------------------------------------------------------
using MS.Win32.PresentationCore;

using System; 
using System.Diagnostics;
using System.Security; 
using System.Security.Permissions; 
using System.Windows.Interop;
 
namespace System.Windows.Media
{
    /// 
    /// RenderOptions - 
    ///      The RenderOptions class provides definitions of attached properties
    ///      which will control rendering. 
    ///  
    public static class RenderOptions
    { 
        //
        // EdgeMode
        //
 
        /// 
        /// EdgeModeProperty - Enum which descibes the manner in which we render edges of non-text primitives. 
        ///  
        public static readonly DependencyProperty EdgeModeProperty =
            DependencyProperty.RegisterAttached("EdgeMode", 
                                                typeof(EdgeMode),
                                                typeof(RenderOptions),
                                                new UIPropertyMetadata(EdgeMode.Unspecified),
                                                new ValidateValueCallback(System.Windows.Media.ValidateEnums.IsEdgeModeValid)); 

        ///  
        /// Reads the attached property EdgeMode from the given object. 
        /// 
        [AttachedPropertyBrowsableForType(typeof(DependencyObject))] 
        public static EdgeMode GetEdgeMode(DependencyObject target)
        {
            if (target == null) { throw new ArgumentNullException("target"); }
            return (EdgeMode)target.GetValue(EdgeModeProperty); 
        }
 
        ///  
        /// Writes the attached property EdgeMode to the given object.
        ///  
        public static void SetEdgeMode(DependencyObject target, EdgeMode edgeMode)
        {
            if (target == null) { throw new ArgumentNullException("target"); }
            target.SetValue(EdgeModeProperty, edgeMode); 
        }
 
        // 
        // BitmapScaling
        // 

        /// 
        /// BitmapScalingModeProperty - Enum which describes the manner in which we scale the images.
        ///  
        public static readonly DependencyProperty BitmapScalingModeProperty =
            DependencyProperty.RegisterAttached("BitmapScalingMode", 
                                                typeof(BitmapScalingMode), 
                                                typeof(RenderOptions),
                                                new UIPropertyMetadata(BitmapScalingMode.Unspecified), 
                                                new ValidateValueCallback(System.Windows.Media.ValidateEnums.IsBitmapScalingModeValid));

        /// 
        /// Reads the attached property BitmapScalingMode from the given object. 
        /// 
        [AttachedPropertyBrowsableForType(typeof(DependencyObject))] 
        public static BitmapScalingMode GetBitmapScalingMode(DependencyObject target) 
        {
            if (target == null) { throw new ArgumentNullException("target"); } 
            return (BitmapScalingMode)target.GetValue(BitmapScalingModeProperty);
        }

        ///  
        /// Writes the attached property BitmapScalingMode to the given object.
        ///  
        public static void SetBitmapScalingMode(DependencyObject target, BitmapScalingMode bitmapScalingMode) 
        {
            if (target == null) { throw new ArgumentNullException("target"); } 
            target.SetValue(BitmapScalingModeProperty, bitmapScalingMode);
        }

        // 
        // ClearTypeHint
        // 
 
        /// 
        /// ClearTypeHint - Enum which describes the ability to re-enable ClearType rendering in intermediates. 
        /// 
        public static readonly DependencyProperty ClearTypeHintProperty =
            DependencyProperty.RegisterAttached("ClearTypeHint",
                                                typeof(ClearTypeHint), 
                                                typeof(RenderOptions),
                                                new UIPropertyMetadata(ClearTypeHint.Auto), 
                                                new ValidateValueCallback(System.Windows.Media.ValidateEnums.IsClearTypeHintValid)); 

        ///  
        /// Reads the attached property ClearTypeHint from the given object.
        /// 
        [AttachedPropertyBrowsableForType(typeof(DependencyObject))]
        public static ClearTypeHint GetClearTypeHint(DependencyObject target) 
        {
            if (target == null) { throw new ArgumentNullException("target"); } 
            return (ClearTypeHint)target.GetValue(ClearTypeHintProperty); 
        }
 
        /// 
        /// Writes the attached property ClearTypeHint to the given object.
        /// 
        public static void SetClearTypeHint(DependencyObject target, ClearTypeHint clearTypeHint) 
        {
            if (target == null) { throw new ArgumentNullException("target"); } 
            target.SetValue(ClearTypeHintProperty, clearTypeHint); 
        }
 
        //
        // CachingHint
        //
 
        /// 
        /// CachingHintProperty - Hints the rendering engine that rendered content should be cached 
        /// when possible.  This is currently supported on TileBrush. 
        /// 
        public static readonly DependencyProperty CachingHintProperty = 
            DependencyProperty.RegisterAttached("CachingHint",
                                                typeof(CachingHint),
                                                typeof(RenderOptions),
                                                new UIPropertyMetadata(CachingHint.Unspecified), 
                                                new ValidateValueCallback(System.Windows.Media.ValidateEnums.IsCachingHintValid));
 
        ///  
        /// Reads the attached property CachingHint from the given object.
        ///  
        [AttachedPropertyBrowsableForType(typeof(TileBrush))]
        public static CachingHint GetCachingHint(DependencyObject target)
        {
            if (target == null) { throw new ArgumentNullException("target"); } 
            return (CachingHint)target.GetValue(CachingHintProperty);
        } 
 
        /// 
        /// Writes the attached property CachingHint to the given object. 
        /// 
        public static void SetCachingHint(DependencyObject target, CachingHint cachingHint)
        {
            if (target == null) { throw new ArgumentNullException("target"); } 
            target.SetValue(CachingHintProperty, cachingHint);
        } 
 
        //
        // CacheInvalidationThresholdMinimum 
        //

        /// 
        /// CacheInvalidationThresholdMinimum - 
        /// 
        public static readonly DependencyProperty CacheInvalidationThresholdMinimumProperty = 
            DependencyProperty.RegisterAttached("CacheInvalidationThresholdMinimum", 
                                                typeof(double),
                                                typeof(RenderOptions), 
                                                new UIPropertyMetadata(0.707),
                                                /* ValidateValueCallback */ null);

        ///  
        /// Reads the attached property CacheInvalidationThresholdMinimum from the given object.
        ///  
        [AttachedPropertyBrowsableForType(typeof(TileBrush))] 
        public static double GetCacheInvalidationThresholdMinimum(DependencyObject target)
        { 
            if (target == null) { throw new ArgumentNullException("target"); }
            return (double)target.GetValue(CacheInvalidationThresholdMinimumProperty);
        }
 
        /// 
        /// Writes the attached property CacheInvalidationThresholdMinimum to the given object. 
        ///  
        public static void SetCacheInvalidationThresholdMinimum(DependencyObject target, double cacheInvalidationThresholdMinimum)
        { 
            if (target == null) { throw new ArgumentNullException("target"); }
            target.SetValue(CacheInvalidationThresholdMinimumProperty, cacheInvalidationThresholdMinimum);
        }
 
        //
        // CacheInvalidationThresholdMaximum 
        // 

        ///  
        /// CacheInvalidationThresholdMaximum -
        /// 
        public static readonly DependencyProperty CacheInvalidationThresholdMaximumProperty =
            DependencyProperty.RegisterAttached("CacheInvalidationThresholdMaximum", 
                                                typeof(double),
                                                typeof(RenderOptions), 
                                                new UIPropertyMetadata(1.414), 
                                                /* ValidateValueCallback */ null);
 
        /// 
        /// Reads the attached property CacheInvalidationThresholdMaximum from the given object.
        /// 
        [AttachedPropertyBrowsableForType(typeof(TileBrush))] 
        public static double GetCacheInvalidationThresholdMaximum(DependencyObject target)
        { 
            if (target == null) { throw new ArgumentNullException("target"); } 
            return (double)target.GetValue(CacheInvalidationThresholdMaximumProperty);
        } 

        /// 
        /// Writes the attached property CacheInvalidationThresholdMaximum to the given object.
        ///  
        public static void SetCacheInvalidationThresholdMaximum(DependencyObject target, double cacheInvalidationThresholdMaximum)
        { 
            if (target == null) { throw new ArgumentNullException("target"); } 
            target.SetValue(CacheInvalidationThresholdMaximumProperty, cacheInvalidationThresholdMaximum);
        } 

        /// 
        /// Specifies the render mode preference for the process
        ///  
        /// 
        ///     This property specifies a preference, it does not necessarily change the actual 
        ///     rendering mode.  Among other things, this can be trumped by the registry settings. 
        ///     
        ///     Callers must have UIPermission(UIPermissionWindow.AllWindows) to set this property. 
        /// 
        /// 
        ///     Critical: This code influences the low-level rendering code by specifying whether the
        ///     rendering system should use the GPU or CPU. 
        ///     PublicOK: We don't want to enable this in partial trust, so we have a link demand
        ///     on the setter.  It is not privileged data, so the getter is not protected. 
        ///  
        public static RenderMode ProcessRenderMode
        { 
            [SecurityCritical]
            get
            {
                return UnsafeNativeMethods.MilCoreApi.RenderOptions_IsSoftwareRenderingForcedForProcess() ? 
                    RenderMode.SoftwareOnly : RenderMode.Default;
            } 
 
            [SecurityCritical]
            [UIPermissionAttribute(SecurityAction.LinkDemand, Window = UIPermissionWindow.AllWindows)] 
            set
            {
                if (value != RenderMode.Default && value != RenderMode.SoftwareOnly)
                { 
                    throw new System.ComponentModel.InvalidEnumArgumentException("value", (int)value, typeof(RenderMode));
                } 
 
                UnsafeNativeMethods.MilCoreApi.RenderOptions_ForceSoftwareRenderingModeForProcess(
                    value == RenderMode.SoftwareOnly 
                    );
            }
        }
    } 
}

// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
// Copyright (c) Microsoft Corporation. All rights reserved.
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RenderOptions.cs source code in C# .NET

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