Merge pull request #3 from RussKie/theming

Add UxTheme.GetCurrentThemeName

src/Tests/WInterop.Tests/Theming/ThemesTests.cs

@@ -0,0 +1,23 @@
+// Copyright (c) Jeremy W. Kuhne. All rights reserved.
+// Licensed under the MIT license. See LICENSE file in the project root for full license information.
+
+using FluentAssertions;
+using WInterop.Windows;
+using Xunit;
+
+namespace WindowsTests
+{
+    public class ThemesTests
+    {
+        [Fact]
+        public unsafe void GetCurrentThemeName()
+        {
+            string themeName = Themes.GetCurrentThemeName();
+
+            // Name would be something like: C:\WINDOWS\resources\themes\Aero\Aero.msstyles
+
+            themeName.Length.Should().BeGreaterThan(0);
+            themeName.Should().EndWith(".msstyles");
+        }
+    }
+}

src/WInterop.Desktop/Windows/Native/WindowsImports.Kernel32.cs

@@ -0,0 +1,24 @@
+// Copyright (c) Jeremy W. Kuhne. All rights reserved.
+// Licensed under the MIT license. See LICENSE file in the project root for full license information.
+
+using System.Runtime.InteropServices;
+
+namespace WInterop.Windows.Native
+{
+    public static partial class WindowsImports
+    {
+        // https://msdn.microsoft.com/library/windows/desktop/ms679277.aspx
+        [DllImport(Libraries.Kernel32, SetLastError = true, ExactSpelling = true)]
+        public static extern bool Beep(
+            uint dwFreq,
+            uint dwDurations);
+
+        // https://docs.microsoft.com/windows/win32/api/winbase/nf-winbase-muldiv
+        [SuppressGCTransition]
+        [DllImport(Libraries.Kernel32, ExactSpelling = true)]
+        public static extern int MulDiv(
+            int nNumber,
+            int nNumerator,
+            int nDenominator);
+    }
+}

src/WInterop.Desktop/Windows/Native/WindowsImports.UxTheme.cs

@@ -0,0 +1,57 @@
+// Copyright (c) Jeremy W. Kuhne. All rights reserved.
+// Licensed under the MIT license. See LICENSE file in the project root for full license information.
+
+using System;
+using System.Runtime.InteropServices;
+using WInterop.Errors;
+using WInterop.Support;
+
+namespace WInterop.Windows.Native
+{
+    public static partial class WindowsImports
+    {
+        // https://docs.microsoft.com/windows/win32/api/uxtheme/nf-uxtheme-closethemedata
+        [DllImport(Libraries.UxTheme, ExactSpelling = true)]
+        public static extern HResult CloseThemeData(
+            HTHEME hTheme);
+
+        // https://docs.microsoft.com/windows/win32/api/uxtheme/nf-uxtheme-getcurrentthemename
+        [DllImport(Libraries.UxTheme, ExactSpelling = true)]
+        public static unsafe extern HResult GetCurrentThemeName(
+            char* pszThemeFileName,
+            int cchMaxNameChars,
+            char* pszColorBuff,
+            int cchMaxColorChars,
+            char* pszSizeBuff,
+            int cchMaxSizeChars);
+
+        // https://docs.microsoft.com/windows/win32/api/uxtheme/nf-uxtheme-isappthemed
+        [SuppressGCTransition]
+        [DllImport(Libraries.UxTheme, ExactSpelling = true)]
+        public static extern IntBoolean IsAppThemed();
+
+        // https://docs.microsoft.com/windows/win32/api/uxtheme/nf-uxtheme-iscompositionactive
+        [SuppressGCTransition]
+        [DllImport(Libraries.UxTheme, ExactSpelling = true)]
+        public static extern IntBoolean IsCompositionActive();
+
+        // https://docs.microsoft.com/windows/win32/api/uxtheme/nf-uxtheme-isthemeactive
+        [SuppressGCTransition]
+        [DllImport(Libraries.UxTheme, ExactSpelling = true)]
+        public static extern IntBoolean IsThemeActive();
+
+        // https://docs.microsoft.com/windows/win32/api/uxtheme/nf-uxtheme-isthemepartdefined
+        [DllImport(Libraries.UxTheme, ExactSpelling = true)]
+        public static extern IntBoolean IsThemePartDefined(
+            HTHEME hTheme,
+            int iPartId,
+            int iStateId);
+
+        // https://docs.microsoft.com/windows/win32/api/uxtheme/nf-uxtheme-openthemedataex
+        [DllImport(Libraries.UxTheme, ExactSpelling = true, CharSet = CharSet.Unicode)]
+        public static unsafe extern HTHEME OpenThemeDataEx(
+            HWND hwnd,
+            char* pszClassList,
+            uint dwFlags);
+    }
+}

src/WInterop.Desktop/Windows/Native/WindowsImports.cs

@@ -1309,12 +1309,6 @@ public static extern unsafe IntBoolean TrackPopupMenuEx(
             HWND hwnd,
             TPMPARAMS* lptpm);
 
-        // https://msdn.microsoft.com/library/windows/desktop/ms679277.aspx
-        [DllImport(Libraries.Kernel32, SetLastError = true, ExactSpelling = true)]
-        public static extern bool Beep(
-            uint dwFreq,
-            uint dwDurations);
-
         // https://msdn.microsoft.com/library/windows/desktop/ms679277.aspx
         [DllImport(Libraries.User32, SetLastError = true, ExactSpelling = true)]
         public static extern bool MessageBeep(
@@ -1373,47 +1367,5 @@ public static extern IntBoolean SetProcessDpiAwarenessContext(
         // https://docs.microsoft.com/windows/win32/api/winuser/nf-winuser-getdpifromdpiawarenesscontext
         [DllImport(Libraries.User32, ExactSpelling = true)]
         public static extern uint GetDpiFromDpiAwarenessContext(DpiAwarenessContext value);
-
-        // https://docs.microsoft.com/windows/win32/api/winbase/nf-winbase-muldiv
-        [SuppressGCTransition]
-        [DllImport(Libraries.Kernel32, ExactSpelling = true)]
-        public static extern int MulDiv(
-            int nNumber,
-            int nNumerator,
-            int nDenominator);
-
-        // https://docs.microsoft.com/windows/win32/api/uxtheme/nf-uxtheme-isappthemed
-        [SuppressGCTransition]
-        [DllImport(Libraries.UxTheme, ExactSpelling = true)]
-        public static extern IntBoolean IsAppThemed();
-
-        // https://docs.microsoft.com/windows/win32/api/uxtheme/nf-uxtheme-iscompositionactive
-        [SuppressGCTransition]
-        [DllImport(Libraries.UxTheme, ExactSpelling = true)]
-        public static extern IntBoolean IsCompositionActive();
-
-        // https://docs.microsoft.com/windows/win32/api/uxtheme/nf-uxtheme-isthemeactive
-        [SuppressGCTransition]
-        [DllImport(Libraries.UxTheme, ExactSpelling = true)]
-        public static extern IntBoolean IsThemeActive();
-
-        // https://docs.microsoft.com/windows/win32/api/uxtheme/nf-uxtheme-isthemepartdefined
-        [DllImport(Libraries.UxTheme, ExactSpelling = true)]
-        public static extern IntBoolean IsThemePartDefined(
-            HTHEME hTheme,
-            int iPartId,
-            int iStateId);
-
-        // https://docs.microsoft.com/windows/win32/api/uxtheme/nf-uxtheme-openthemedataex
-        [DllImport(Libraries.UxTheme, ExactSpelling = true, CharSet = CharSet.Unicode)]
-        public static unsafe extern HTHEME OpenThemeDataEx(
-            HWND hwnd,
-            char* pszClassList,
-            uint dwFlags);
-
-        // https://docs.microsoft.com/windows/win32/api/uxtheme/nf-uxtheme-closethemedata
-        [DllImport(Libraries.UxTheme, ExactSpelling = true)]
-        public static extern HResult CloseThemeData(
-            HTHEME hTheme);
     }
 }

src/WInterop.Desktop/Windows/Windows.Theming.cs

@@ -2,23 +2,25 @@
 // Licensed under the MIT license. See LICENSE file in the project root for full license information.
 
 using System;
-using System.Buffers;
-using System.Drawing;
-using System.Numerics;
-using System.Runtime.CompilerServices;
-using System.Runtime.InteropServices;
 using WInterop.Errors;
-using WInterop.Gdi;
-using WInterop.Globalization;
-using WInterop.Modules;
 using WInterop.Support;
-using WInterop.Support.Buffers;
 using WInterop.Windows.Native;
 
 namespace WInterop.Windows
 {
     public static partial class Windows
     {
+        public static unsafe string GetCurrentThemeName()
+        {
+            Span<char> themeName = stackalloc char[Paths.MaxPath];
+            fixed (char* theme = themeName)
+            {
+                WindowsImports.GetCurrentThemeName(theme, Paths.MaxPath, null, 0, null, 0).ThrowIfFailed();
+            }
+
+            return themeName.SliceAtNull().ToString();
+        }
+
         public static bool IsAppThemed() => WindowsImports.IsAppThemed();
 
         public static bool IsCompositionActive() => WindowsImports.IsCompositionActive();