Code:
/ FX-1434 / FX-1434 / 1.0 / untmp / whidbey / REDBITS / ndp / fx / src / WinForms / Managed / System / WinForms / VisualStyles / VisualStyleInformation.cs / 1 / VisualStyleInformation.cs
//------------------------------------------------------------------------------ //// Copyright (c) Microsoft Corporation. All rights reserved. // //----------------------------------------------------------------------------- /* */ [assembly: System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.MSInternal", "CA905:SystemAndMicrosoftNamespacesRequireApproval", Scope="namespace", Target="System.Windows.Forms.VisualStyles")] namespace System.Windows.Forms.VisualStyles { using System; using System.Text; using System.Drawing; using System.Windows.Forms; using System.Runtime.InteropServices; using System.Diagnostics.CodeAnalysis; ////// /// public static class VisualStyleInformation { //Make this per-thread, so that different threads can safely use these methods. [ThreadStatic] private static VisualStyleRenderer visualStyleRenderer = null; ////// Provides information about the current visual style. /// NOTE: /// 1) These properties (except SupportByOS, which is always meaningful) are meaningful only /// if visual styles are supported and have currently been applied by the user. /// 2) A subset of these use VisualStyleRenderer objects, so they are /// not meaningful unless VisualStyleRenderer.IsSupported is true. /// ////// /// public static bool IsSupportedByOS { get { return (OSFeature.Feature.IsPresent(OSFeature.Themes)); } } ////// Used to find whether visual styles are supported by the current OS. Same as /// using the OSFeature class to see if themes are supported. /// ////// /// public static bool IsEnabledByUser { get { if (!IsSupportedByOS) { return false; } return (SafeNativeMethods.IsAppThemed()); } } internal static string ThemeFilename { get { if (IsEnabledByUser) { StringBuilder filename = new StringBuilder(512); SafeNativeMethods.GetCurrentThemeName(filename, filename.Capacity, null, 0, null, 0); return (filename.ToString()); } return String.Empty; } } ////// Returns true if a visual style has currently been applied by the user, else false. /// ////// /// The current visual style's color scheme name. /// public static string ColorScheme { get { if (IsEnabledByUser) { StringBuilder colorScheme = new StringBuilder(512); SafeNativeMethods.GetCurrentThemeName(null, 0, colorScheme, colorScheme.Capacity, null, 0); return (colorScheme.ToString()); } return String.Empty; } } ////// /// The current visual style's size name. /// public static string Size { get { if (IsEnabledByUser) { StringBuilder size = new StringBuilder(512); SafeNativeMethods.GetCurrentThemeName(null, 0, null, 0, size, size.Capacity); return (size.ToString()); } return String.Empty; } } ////// /// The current visual style's display name. /// public static string DisplayName { get { if (IsEnabledByUser) { StringBuilder name = new StringBuilder(512); SafeNativeMethods.GetThemeDocumentationProperty(ThemeFilename, VisualStyleDocProperty.DisplayName, name, name.Capacity); return name.ToString(); } return String.Empty; } } ////// /// The current visual style's company. /// public static string Company { get { if (IsEnabledByUser) { StringBuilder company = new StringBuilder(512); SafeNativeMethods.GetThemeDocumentationProperty(ThemeFilename, VisualStyleDocProperty.Company, company, company.Capacity); return company.ToString(); } return String.Empty; } } ////// /// The name of the current visual style's author. /// public static string Author { get { if (IsEnabledByUser) { StringBuilder author = new StringBuilder(512); SafeNativeMethods.GetThemeDocumentationProperty(ThemeFilename, VisualStyleDocProperty.Author, author, author.Capacity); return author.ToString(); } return String.Empty; } } ////// /// The current visual style's copyright information. /// public static string Copyright { get { if (IsEnabledByUser) { StringBuilder copyright = new StringBuilder(512); SafeNativeMethods.GetThemeDocumentationProperty(ThemeFilename, VisualStyleDocProperty.Copyright, copyright, copyright.Capacity); return copyright.ToString(); } return String.Empty; } } ////// /// The current visual style's url. /// [SuppressMessage("Microsoft.Design", "CA1056:UriPropertiesShouldNotBeStrings")] public static string Url { [SuppressMessage("Microsoft.Design", "CA1054:UriParametersShouldNotBeStrings")] get { if (IsEnabledByUser) { StringBuilder url = new StringBuilder(512); SafeNativeMethods.GetThemeDocumentationProperty(ThemeFilename, VisualStyleDocProperty.Url, url, url.Capacity); return url.ToString(); } return String.Empty; } } ////// /// The current visual style's version. /// public static string Version { get { if (IsEnabledByUser) { StringBuilder version = new StringBuilder(512); SafeNativeMethods.GetThemeDocumentationProperty(ThemeFilename, VisualStyleDocProperty.Version, version, version.Capacity); return version.ToString(); } return String.Empty; } } ////// /// The current visual style's description. /// public static string Description { get { if (IsEnabledByUser) { StringBuilder description = new StringBuilder(512); SafeNativeMethods.GetThemeDocumentationProperty(ThemeFilename, VisualStyleDocProperty.Description, description, description.Capacity); return description.ToString(); } return String.Empty; } } ////// /// Returns true if the current theme supports flat menus, else false. /// public static bool SupportsFlatMenus { get { if (Application.RenderWithVisualStyles) { if (visualStyleRenderer == null) { visualStyleRenderer = new VisualStyleRenderer(VisualStyleElement.Window.Caption.Active); } else { visualStyleRenderer.SetParameters(VisualStyleElement.Window.Caption.Active); } return (SafeNativeMethods.GetThemeSysBool(new HandleRef(null, visualStyleRenderer.Handle), VisualStyleSystemProperty.SupportsFlatMenus)); } return false; } } ////// /// The minimum color depth supported by the current visual style. /// public static int MinimumColorDepth { get { if (Application.RenderWithVisualStyles) { if (visualStyleRenderer == null) { visualStyleRenderer = new VisualStyleRenderer(VisualStyleElement.Window.Caption.Active); } else { visualStyleRenderer.SetParameters(VisualStyleElement.Window.Caption.Active); } int mcDepth = 0; SafeNativeMethods.GetThemeSysInt(new HandleRef(null, visualStyleRenderer.Handle), VisualStyleSystemProperty.MinimumColorDepth, ref mcDepth); return mcDepth; } return 0; } } ////// /// Border Color that Windows XP renders for controls like TextBox and ComboBox. /// public static Color TextControlBorder { get { if (Application.RenderWithVisualStyles) { if (visualStyleRenderer == null) { visualStyleRenderer = new VisualStyleRenderer(VisualStyleElement.TextBox.TextEdit.Normal); } else { visualStyleRenderer.SetParameters(VisualStyleElement.TextBox.TextEdit.Normal); } Color borderColor = visualStyleRenderer.GetColor(ColorProperty.BorderColor); return borderColor; } return SystemColors.WindowFrame; } } ////// /// This is the color buttons and tab pages are highlighted with when they are moused over on themed OS. /// public static Color ControlHighlightHot { get { if (Application.RenderWithVisualStyles) { if (visualStyleRenderer == null) { visualStyleRenderer = new VisualStyleRenderer(VisualStyleElement.Button.PushButton.Normal); } else { visualStyleRenderer.SetParameters(VisualStyleElement.Button.PushButton.Normal); } Color accentColor = visualStyleRenderer.GetColor(ColorProperty.AccentColorHint); return accentColor; } return SystemColors.ButtonHighlight; } } } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. // Copyright (c) Microsoft Corporation. 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