Add alternate system color experimental feature

docs/project/list-of-diagnostics.md

@@ -293,3 +293,4 @@ Diagnostic id values for experimental APIs must not be recycled, as that could s
 | Diagnostic ID | Introduced | Removed | Description |
 | :---------------- | ---------: | ------: | :---------- |
 | __`SYSLIB5001`__ | .NET 9 | TBD | `Tensor<T>` and related APIs in System.Numerics.Tensors are experimental in .NET 9 |
+| __`SYSLIB5002`__ | .NET 9 | TBD | `SystemColors` alternate colors are experimental in .NET 9 |

src/libraries/Common/src/Interop/Windows/User32/Interop.HIGHCONTRASTW.cs

@@ -0,0 +1,32 @@
+// Licensed to the .NET Foundation under one or more agreements.
+// The .NET Foundation licenses this file to you under the MIT license.
+
+using System;
+using System.Runtime.InteropServices;
+
+internal static partial class Interop
+{
+ internal static partial class User32
+ {
+ [StructLayout(LayoutKind.Sequential, CharSet = CharSet.Unicode)]
+ public unsafe partial struct HIGHCONTRASTW
+ {
+ internal uint cbSize;
+ internal HIGHCONTRASTW_FLAGS dwFlags;
+ internal void* lpszDefaultScheme;
+ }
+
+ [Flags]
+ public enum HIGHCONTRASTW_FLAGS : uint
+ {
+ HCF_HIGHCONTRASTON = 0x00000001,
+ HCF_AVAILABLE = 0x00000002,
+ HCF_HOTKEYACTIVE = 0x00000004,
+ HCF_CONFIRMHOTKEY = 0x00000008,
+ HCF_HOTKEYSOUND = 0x00000010,
+ HCF_INDICATOR = 0x00000020,
+ HCF_HOTKEYAVAILABLE = 0x00000040,
+ HCF_OPTION_NOTHEMECHANGE = 0x00001000
+ }
+ }
+}

src/libraries/Common/src/Interop/Windows/User32/Interop.SystemParametersInfo.cs

@@ -11,7 +11,8 @@ internal static partial class User32
  public enum SystemParametersAction : uint
  {
  SPI_GETICONTITLELOGFONT = 0x1F,
- SPI_GETNONCLIENTMETRICS = 0x29
+ SPI_GETNONCLIENTMETRICS = 0x29,
+ SPI_GETHIGHCONTRAST = 0x42
  }
 
  [LibraryImport(Libraries.User32)]

src/libraries/Common/src/System/Experimentals.cs

@@ -19,6 +19,9 @@ internal static class Experimentals
  // Tensor<T> and related APIs are marked as [Experimental] in .NET 9
  internal const string TensorTDiagId = "SYSLIB5001";
 
+ // SystemColors alternate colors are marked as [Experimental] in .NET 9
+ internal const string SystemColorsDiagId = "SYSLIB5002";
+
  // When adding a new diagnostic ID, add it to the table in docs\project\list-of-diagnostics.md as well.
  // Keep new const identifiers above this comment.
  }

src/libraries/System.Drawing.Primitives/System.Drawing.Primitives.sln

@@ -1,4 +1,8 @@
-Microsoft Visual Studio Solution File, Format Version 12.00
+
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio Version 17
+VisualStudioVersion = 17.11.35111.106
+MinimumVisualStudioVersion = 10.0.40219.1
 Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "TestUtilities", "..\Common\tests\TestUtilities\TestUtilities.csproj", "{39205290-06C5-468E-B5C9-D9C5737909EE}"
 EndProject
 Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "System.Collections.NonGeneric", "..\System.Collections.NonGeneric\ref\System.Collections.NonGeneric.csproj", "{4B06D595-C5B5-49E3-BC5D-7CA55B52D91B}"
@@ -45,11 +49,11 @@ Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "src", "src", "{722DCDC1-751
 EndProject
 Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "gen", "gen", "{8349AD04-5979-4347-A869-7F76B043453E}"
 EndProject
-Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "gen", "tools\gen", "{1ACFEEFC-7E61-483E-9CAF-1EB2DFC11558}"
+Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "gen", "gen", "{1ACFEEFC-7E61-483E-9CAF-1EB2DFC11558}"
 EndProject
-Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "src", "tools\src", "{D99A011B-F48D-4E22-9C5B-050294758522}"
+Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "src", "src", "{D99A011B-F48D-4E22-9C5B-050294758522}"
 EndProject
-Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "ref", "tools\ref", "{5CB40A8A-59D5-4E57-8F9A-D716C5BDFDC7}"
+Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "ref", "ref", "{5CB40A8A-59D5-4E57-8F9A-D716C5BDFDC7}"
 EndProject
 Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "tools", "tools", "{0205F064-E9AB-408E-BC47-D1EB62C753C7}"
 EndProject
@@ -141,29 +145,33 @@ Global
  EndGlobalSection
  GlobalSection(NestedProjects) = preSolution
  {39205290-06C5-468E-B5C9-D9C5737909EE} = {B004DC3D-DA89-4C76-8D15-327CCDB6D7C0}
- {515B6C1E-757F-497E-9707-37B5822FFC9A} = {B004DC3D-DA89-4C76-8D15-327CCDB6D7C0}
  {4B06D595-C5B5-49E3-BC5D-7CA55B52D91B} = {F2D0660B-B4A3-4039-A47D-63F9D1CE19B6}
  {6ED31F56-EBDB-4E4D-A6D5-8F6078B1A241} = {F2D0660B-B4A3-4039-A47D-63F9D1CE19B6}
  {9D080C1F-6334-4C14-BABF-D0D9132C0D83} = {F2D0660B-B4A3-4039-A47D-63F9D1CE19B6}
  {F92BFBC7-A148-44D5-A977-01926068615D} = {F2D0660B-B4A3-4039-A47D-63F9D1CE19B6}
  {D2E753F4-34A3-4641-9C0F-53539147CCF2} = {F2D0660B-B4A3-4039-A47D-63F9D1CE19B6}
+ {80A68643-0E37-4525-BF06-F50C3BF7B867} = {722DCDC1-7510-4B50-93F4-51E5FF833B2A}
+ {515B6C1E-757F-497E-9707-37B5822FFC9A} = {B004DC3D-DA89-4C76-8D15-327CCDB6D7C0}
  {731DA2F5-004D-46F0-8751-4945163E8DF4} = {F2D0660B-B4A3-4039-A47D-63F9D1CE19B6}
  {D8C6E8A8-4E73-42CD-A310-C63B64844A4C} = {F2D0660B-B4A3-4039-A47D-63F9D1CE19B6}
- {FD462F99-C9F6-4D3E-B080-F5E337E8F2F8} = {F2D0660B-B4A3-4039-A47D-63F9D1CE19B6}
- {80A68643-0E37-4525-BF06-F50C3BF7B867} = {722DCDC1-7510-4B50-93F4-51E5FF833B2A}
  {F06CCE8D-0066-4B17-8EF0-162AE711F6D8} = {8349AD04-5979-4347-A869-7F76B043453E}
  {315E574D-6A26-4A89-83B5-1C948F3C83D2} = {8349AD04-5979-4347-A869-7F76B043453E}
  {9ECCC771-064F-403E-8E0E-7B049AAFAD36} = {8349AD04-5979-4347-A869-7F76B043453E}
+ {FD462F99-C9F6-4D3E-B080-F5E337E8F2F8} = {F2D0660B-B4A3-4039-A47D-63F9D1CE19B6}
  {D5E974B9-EB58-4D32-A4F4-C31559436DEA} = {1ACFEEFC-7E61-483E-9CAF-1EB2DFC11558}
  {D2D8DF0A-836A-4521-A9F5-349F91E87046} = {1ACFEEFC-7E61-483E-9CAF-1EB2DFC11558}
- {1ACFEEFC-7E61-483E-9CAF-1EB2DFC11558} = {0205F064-E9AB-408E-BC47-D1EB62C753C7}
  {198C17DB-F65F-4165-996B-128E3123A6CF} = {D99A011B-F48D-4E22-9C5B-050294758522}
  {A92D7FC7-E3A9-4260-8F25-7FCF3AA900DC} = {D99A011B-F48D-4E22-9C5B-050294758522}
- {D99A011B-F48D-4E22-9C5B-050294758522} = {0205F064-E9AB-408E-BC47-D1EB62C753C7}
  {0A6457CF-5932-44F6-9983-978FA163B3A5} = {5CB40A8A-59D5-4E57-8F9A-D716C5BDFDC7}
+ {1ACFEEFC-7E61-483E-9CAF-1EB2DFC11558} = {0205F064-E9AB-408E-BC47-D1EB62C753C7}
+ {D99A011B-F48D-4E22-9C5B-050294758522} = {0205F064-E9AB-408E-BC47-D1EB62C753C7}
  {5CB40A8A-59D5-4E57-8F9A-D716C5BDFDC7} = {0205F064-E9AB-408E-BC47-D1EB62C753C7}
  EndGlobalSection
  GlobalSection(ExtensibilityGlobals) = postSolution
  SolutionGuid = {E2DD25F1-FA29-41D5-AB37-65DDC6A49304}
  EndGlobalSection
+ GlobalSection(SharedMSBuildProjectFiles) = preSolution
+ ..\..\tools\illink\src\ILLink.Shared\ILLink.Shared.projitems*{a92d7fc7-e3a9-4260-8f25-7fcf3aa900dc}*SharedItemsImports = 5
+ ..\..\tools\illink\src\ILLink.Shared\ILLink.Shared.projitems*{d2d8df0a-836a-4521-a9f5-349f91e87046}*SharedItemsImports = 5
+ EndGlobalSection
 EndGlobal

src/libraries/System.Drawing.Primitives/ref/System.Drawing.Primitives.cs

@@ -625,5 +625,7 @@ public static partial class SystemColors
  public static System.Drawing.Color Window { get { throw null; } }
  public static System.Drawing.Color WindowFrame { get { throw null; } }
  public static System.Drawing.Color WindowText { get { throw null; } }
+ [System.Diagnostics.CodeAnalysis.Experimental("SYSLIB5002", UrlFormat = "https://aka.ms/dotnet-warnings/{0}")]
+ public static bool UseAlternativeColorSet { get { throw null; } set { } }
  }
 }

src/libraries/System.Drawing.Primitives/src/System.Drawing.Primitives.csproj

@@ -29,15 +29,20 @@
  Link="System\Drawing\ColorConverterCommon.cs" />
  <Compile Include="$(CommonPath)System\Drawing\ColorTable.cs"
  Link="System\Drawing\ColorTable.cs" />
+ <Compile Include="$(CommonPath)System\Experimentals.cs" Link="Common\System\Experimentals.cs" />
  </ItemGroup>
 
  <ItemGroup Condition="'$(TargetPlatformIdentifier)' == 'windows'">
  <Compile Include="$(CommonPath)Interop\Windows\Interop.Libraries.cs"
  Link="Common\Interop\Windows\Interop.Libraries.cs" />
  <Compile Include="$(CommonPath)Interop\Windows\User32\Interop.GetSysColor.cs"
  Link="Common\Interop\Windows\User32\Interop.GetSysColor.cs" />
+ <Compile Include="$(CommonPath)Interop\Windows\User32\Interop.HIGHCONTRASTW.cs"
+ Link="Common\Interop\Windows\User32\Interop.HIGHCONTRASTW.cs" />
  <Compile Include="$(CommonPath)Interop\Windows\User32\Interop.Win32SystemColors.cs"
  Link="Common\Interop\Windows\User32\Interop.Win32SystemColors.cs" />
+ <Compile Include="$(CommonPath)Interop\Windows\User32\Interop.SystemParametersInfo.cs"
+ Link="Common\Interop\Windows\User32\Interop.SystemParametersInfo.cs" />
  </ItemGroup>
 
  <ItemGroup>