Update packages and add some simple WIC component enumeration

Author: JeremyKuhne

src/thirtytwo/Application.cs

@@ -231,5 +231,7 @@ public static string GetUserDefaultLocaleName()
     public static Direct2dFactory Direct2dFactory => s_direct2dFactory ??= new();
     public static DirectWriteFactory DirectWriteFactory => s_directWriteFactory ??= new();
     public static DirectWriteGdiInterop DirectWriteGdiInterop => s_directWriteGdiInterop ??= new();
+
+    /// <inheritdoc cref="Windows.Win32.Graphics.Imaging.ImagingFactory"/>
     public static ImagingFactory ImagingFactory => s_imagingFactory ??= new();
 }

src/thirtytwo/Controls/ActiveXControl.cs

@@ -40,7 +40,7 @@ public ActiveXControl(
         _classId = classId;
         IUnknown* unknown = ComHelpers.CreateComClass(classId);
         _instance = new(unknown, takeOwnership: true);
-        _instanceAsActiveObject = unknown->QueryAgileInterface<IOleInPlaceActiveObject>();
+        _instanceAsActiveObject = unknown->TryQueryAgileInterface<IOleInPlaceActiveObject>();
 
         using ComScope<IOleObject> oleObject = ComScope<IOleObject>.QueryFrom(unknown);
         if (oleObject.Pointer->GetMiscStatus(DVASPECT.DVASPECT_CONTENT, out OLEMISC status).Succeeded)

src/thirtytwo/NativeMethods.txt

@@ -248,6 +248,8 @@ IsWindowEnabled
 IsWindowVisible
 IUIAutomationElement
 IUnknown
+IWICBitmapDecoderInfo
+IWICComponentInfo
 IWICImagingFactory2
 KEY_INFORMATION_CLASS
 KEY_NAME_INFORMATION
@@ -386,6 +388,7 @@ UpdateWindow
 USER_DEFAULT_SCREEN_DPI
 VARIANT_*
 VIRTUAL_KEY
+WICComponentEnumerateOptions
 WIN32_ERROR
 WINDOWPOS
 WM_*

src/thirtytwo/Win32/Graphics/Imaging/BitmapDecoder.cs

@@ -3,6 +3,9 @@
 
 namespace Windows.Win32.Graphics.Imaging;
 
+/// <summary>
+///  WIC Bitmap Decoder.
+/// </summary>
 public unsafe class BitmapDecoder : DirectDrawBase<IWICBitmapDecoder>
 {
     public BitmapDecoder(IWICBitmapDecoder* pointer) : base(pointer) { }

src/thirtytwo/Win32/Graphics/Imaging/ComponentEnumerator.cs

@@ -0,0 +1,51 @@
+// 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 Windows.Win32.System.Com;
+
+namespace Windows.Win32.Graphics.Imaging;
+
+public unsafe class ComponentEnumerator : DirectDrawBase<IEnumUnknown>
+{
+    public ComponentEnumerator(IEnumUnknown* pointer) : base(pointer) { }
+
+    public ComponentEnumerator(WICComponentType componentType)
+        : base(CreateComponentEnumerator(Application.ImagingFactory, componentType))
+    {
+    }
+
+    public static IEnumUnknown* CreateComponentEnumerator(ImagingFactory factory, WICComponentType componentType)
+    {
+        IEnumUnknown* enumerator;
+        factory.Pointer->CreateComponentEnumerator(
+            (uint)componentType,
+            (uint)WICComponentEnumerateOptions.WICComponentEnumerateDefault,
+            &enumerator).ThrowOnFailure();
+
+        GC.KeepAlive(factory);
+        return enumerator;
+    }
+
+    public static implicit operator IEnumUnknown*(ComponentEnumerator d) => d.Pointer;
+
+    public bool Next([NotNullWhen(true)] out ComponentInfo? componentInfo)
+    {
+        componentInfo = null;
+        IEnumUnknown* enumerator = this;
+        if (enumerator is null)
+        {
+            return false;
+        }
+
+        uint fetched;
+        using ComScope<IUnknown> unknown = new(null);
+        HRESULT result = enumerator->Next(1, unknown, &fetched);
+        if (result != HRESULT.S_OK || fetched != 1)
+        {
+            return false;
+        }
+
+        componentInfo = new(unknown.Pointer->QueryInterface<IWICComponentInfo>());
+        return true;
+    }
+}

src/thirtytwo/Win32/Graphics/Imaging/ComponentInfo.cs

@@ -0,0 +1,36 @@
+// Copyright (c) Jeremy W. Kuhne. All rights reserved.
+// Licensed under the MIT license. See LICENSE file in the project root for full license information.
+
+namespace Windows.Win32.Graphics.Imaging;
+
+public unsafe class ComponentInfo : DirectDrawBase<IWICComponentInfo>
+{
+    public ComponentInfo(IWICComponentInfo* pointer) : base(pointer) { }
+
+    public ComponentInfo(Guid componentClassId)
+        : base(CreateComponentInfo(Application.ImagingFactory, componentClassId))
+    {
+    }
+
+    public static IWICComponentInfo* CreateComponentInfo(ImagingFactory factory, Guid componentClassId)
+    {
+        IWICComponentInfo* info;
+        factory.Pointer->CreateComponentInfo(&componentClassId, &info).ThrowOnFailure();
+        GC.KeepAlive(factory);
+        return info;
+    }
+
+    public string FriendlyName
+    {
+        get
+        {
+            uint length;
+            Pointer->GetFriendlyName(0, null, &length).ThrowOnFailure();
+            char* name = stackalloc char[(int)length];
+            Pointer->GetFriendlyName(length, name, &length).ThrowOnFailure();
+            return new string(name);
+        }
+    }
+
+    public static implicit operator IWICComponentInfo*(ComponentInfo d) => d.Pointer;
+}

src/thirtytwo/Win32/Graphics/Imaging/ImagingFactory.cs

@@ -6,6 +6,9 @@
 
 namespace Windows.Win32.Graphics.Imaging;
 
+/// <summary>
+///  WIC Imaging Factory.
+/// </summary>
 public unsafe class ImagingFactory : DirectDrawBase<IWICImagingFactory2>
 {
     public ImagingFactory() : base(Create()) { }

src/thirtytwo/Win32/System/Com/IUnknown.cs

@@ -9,17 +9,24 @@ namespace Windows.Win32.System.Com;
 
 public unsafe partial struct IUnknown : IVTable<IUnknown, IUnknown.Vtbl>
 {
-    public TInterface* QueryInterface<TInterface>() where TInterface : unmanaged, IComIID
+    public TInterface* TryQueryInterface<TInterface>() where TInterface : unmanaged, IComIID
     {
         TInterface* @interface = default;
         QueryInterface(IID.Get<TInterface>(), (void**)&@interface);
         return @interface;
     }
 
-    public AgileComPointer<TInterface>? QueryAgileInterface<TInterface>()
+    public TInterface* QueryInterface<TInterface>() where TInterface : unmanaged, IComIID
+    {
+        TInterface* @interface = default;
+        QueryInterface(IID.Get<TInterface>(), (void**)&@interface).ThrowOnFailure();
+        return @interface;
+    }
+
+    public AgileComPointer<TInterface>? TryQueryAgileInterface<TInterface>()
         where TInterface : unmanaged, IComIID
     {
-        TInterface* @interface = QueryInterface<TInterface>();
+        TInterface* @interface = TryQueryInterface<TInterface>();
         return @interface is null ? null : new(@interface, takeOwnership: true);
     }
 

src/thirtytwo/thirtytwo.csproj

@@ -13,7 +13,7 @@
   </ItemGroup>
 
   <ItemGroup>
-    <PackageReference Include="Microsoft.Windows.CsWin32" Version="0.3.85-beta">
+    <PackageReference Include="Microsoft.Windows.CsWin32" Version="0.3.106">
       <PrivateAssets>all</PrivateAssets>
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
     </PackageReference>

src/thirtytwo_tests/Win32/Graphics/Imaging/ComponentInfoTests.cs

@@ -0,0 +1,18 @@
+// Copyright (c) Jeremy W. Kuhne. All rights reserved.
+// Licensed under the MIT license. See LICENSE file in the project root for full license information.
+
+namespace Windows.Win32.Graphics.Imaging;
+
+public class ComponentInfoTests
+{
+    [Fact]
+    public void EnumerateDecoders()
+    {
+        ComponentEnumerator enumerator = new(WICComponentType.WICDecoder);
+        while (enumerator.Next(out ComponentInfo? info))
+        {
+            Assert.NotNull(info);
+            Assert.NotNull(info.FriendlyName);
+        }
+    }
+}

src/thirtytwo_tests/Win32/System/Com/StandardDispatchTests.cs

@@ -38,7 +38,7 @@ public void StandardDispatch_ImplDoesNotProvideEx()
             &standard).ThrowOnFailure();
 
         // StdDispatch does not provide an implementation of IDispatchEx.
-        IDispatchEx* dispatchEx = standard->QueryInterface<IDispatchEx>();
+        IDispatchEx* dispatchEx = standard->TryQueryInterface<IDispatchEx>();
         Assert.True(dispatchEx is null);
 
         standard->Release();

src/thirtytwo_tests/thirtytwo_tests.csproj

@@ -9,14 +9,14 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="FluentAssertions" Version="6.8.0" />
-    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.4.0" />
-    <PackageReference Include="xunit" Version="2.4.2" />
-    <PackageReference Include="xunit.runner.visualstudio" Version="2.4.5">
+    <PackageReference Include="FluentAssertions" Version="6.12.0" />
+    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.10.0" />
+    <PackageReference Include="xunit" Version="2.9.0" />
+    <PackageReference Include="xunit.runner.visualstudio" Version="2.8.2">
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
       <PrivateAssets>all</PrivateAssets>
     </PackageReference>
-    <PackageReference Include="coverlet.collector" Version="3.2.0">
+    <PackageReference Include="coverlet.collector" Version="6.0.2">
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
       <PrivateAssets>all</PrivateAssets>
     </PackageReference>