Somewhat proper fast acrylic blur on win10 or above

GlosSIConfig/GlosSIConfig.vcxproj

@@ -63,12 +63,20 @@
       <LanguageStandard>stdcpp20</LanguageStandard>
       <AdditionalOptions>/Zc:__cplusplus %(AdditionalOptions)</AdditionalOptions>
     </ClCompile>
+    <Manifest>
+      <EnableDpiAwareness>PerMonitorHighDPIAware</EnableDpiAwareness>
+      <AdditionalManifestFiles>$(ProjectDir)manifest.xml %(AdditionalManifestFiles)</AdditionalManifestFiles>
+    </Manifest>
   </ItemDefinitionGroup>
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
     <ClCompile>
       <LanguageStandard>stdcpp20</LanguageStandard>
       <AdditionalOptions>/Zc:__cplusplus %(AdditionalOptions)</AdditionalOptions>
     </ClCompile>
+    <Manifest>
+      <EnableDpiAwareness>PerMonitorHighDPIAware</EnableDpiAwareness>
+      <AdditionalManifestFiles>$(ProjectDir)manifest.xml %(AdditionalManifestFiles)</AdditionalManifestFiles>
+    </Manifest>
   </ItemDefinitionGroup>
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)' == 'Debug|x64'" Label="Configuration">
     <ClCompile>
@@ -109,6 +117,9 @@
   <ItemGroup>
     <ClInclude Include="qml\WinEventFilter.h" />
   </ItemGroup>
+  <ItemGroup>
+    <Xml Include="manifest.xml" />
+  </ItemGroup>
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
   <ImportGroup Condition="Exists('$(QtMsBuild)\qt.targets')">
     <Import Project="$(QtMsBuild)\qt.targets" />

GlosSIConfig/GlosSIConfig.vcxproj.filters

@@ -20,6 +20,9 @@
     <Filter Include="qml">
       <UniqueIdentifier>{4abd6243-b275-40c0-8927-27cebe0e7b5a}</UniqueIdentifier>
     </Filter>
+    <Filter Include="manifest">
+      <UniqueIdentifier>{ace69ddb-7744-4e80-a55b-7beb33f0cc81}</UniqueIdentifier>
+    </Filter>
   </ItemGroup>
   <ItemGroup>
     <ClCompile Include="main.cpp">
@@ -50,4 +53,9 @@
       <Filter>Header Files</Filter>
     </ClInclude>
   </ItemGroup>
+  <ItemGroup>
+    <Xml Include="manifest.xml">
+      <Filter>manifest</Filter>
+    </Xml>
+  </ItemGroup>
 </Project>

GlosSIConfig/UIModel.cpp

@@ -38,3 +38,14 @@ bool UIModel::getIsWindows() const
 {
     return is_windows_;
 }
+
+bool UIModel::hasAcrylicEffect() const
+{
+    return has_acrylic_affect_;
+}
+
+void UIModel::setAcrylicEffect(bool has_acrylic_affect)
+{
+    has_acrylic_affect_ = has_acrylic_affect;
+    emit acrylicChanged();
+}

GlosSIConfig/UIModel.h

@@ -21,7 +21,8 @@ class UIModel : public QObject
 {
     Q_OBJECT
 
-    Q_PROPERTY(bool isWindows READ getIsWindows CONSTANT)
+        Q_PROPERTY(bool isWindows READ getIsWindows CONSTANT)
+        Q_PROPERTY(bool hasAcrlyicEffect READ hasAcrylicEffect NOTIFY acrylicChanged)
 
 public:
     UIModel();
@@ -29,6 +30,11 @@ public:
     Q_INVOKABLE QStringList getTargetList() const;
 
     bool getIsWindows() const;
+    [[nodiscard]] bool hasAcrylicEffect() const;
+    void setAcrylicEffect(bool has_acrylic_affect);
+
+signals:
+    void acrylicChanged();
 
 private:
     std::filesystem::path config_path_;
@@ -38,5 +44,6 @@ private:
 #else
     bool is_windows_ = false;
 #endif
+    bool has_acrylic_affect_ = false;
 };
 

GlosSIConfig/main.cpp

@@ -22,6 +22,7 @@ limitations under the License.
 #define NOMINMAX
 #include <Windows.h>
 #include <dwmapi.h>
+#include <VersionHelpers.h>
 #pragma comment(lib, "Dwmapi.lib")
 #endif
 
@@ -36,7 +37,9 @@ enum AccentState
     ACCENT_ENABLE_GRADIENT = 1,
     ACCENT_ENABLE_TRANSPARENTGRADIENT = 2,
     ACCENT_ENABLE_BLURBEHIND = 3,
-    ACCENT_INVALID_STATE = 4
+    ACCENT_ENABLE_ACRYLICBLURBEHIND = 4,
+    ACCENT_ENABLE_HOSTBACKDROP = 5, // RS5 1809
+    ACCENT_INVALID_STATE = 6
 };
 struct AccentPolicy
 {
@@ -98,25 +101,31 @@ int main(int argc, char* argv[])
     DWM_BLURBEHIND bb{ .dwFlags = DWM_BB_ENABLE, .fEnable = true, .hRgnBlur = nullptr };
     DwmEnableBlurBehindWindow(hwnd, &bb);
 
-    //// undoc stuff for aero >= Win10
-    //// leave for now... performance is crap!
-    //// for now we have to live with unblurred transparency. lol
-    //AccentPolicy accPol = { .AccentState = ACCENT_ENABLE_BLURBEHIND };
-    //WindowCompositionAttributeData data = {
-    //    .Attribute = WindowCompositionAttribute::WCA_ACCENT_POLICY,
-    //    .Data = &accPol,
-    //    .SizeOfData = sizeof(accPol)
-    //};
-    //auto user32dll = GetModuleHandle(L"user32.dll");
-    //if (user32dll) {
-    //    PSetWindowCompositionAttribute SetWindowCompositionAttribute = (
-    //        reinterpret_cast<PSetWindowCompositionAttribute>(GetProcAddress(user32dll, "SetWindowCompositionAttribute"))
-    //        );
-    //    if (SetWindowCompositionAttribute)
-    //    {
-    //        SetWindowCompositionAttribute(hwnd, &data);
-    //    }
-    //}
+    if (IsWindows10OrGreater())
+    {
+        // undoc stuff for aero >= Win10
+        int color = (0 << 24) + (0x21 << 16) + (0x11 << 8) + (0x11);
+        AccentPolicy accPol = { .AccentState = ACCENT_ENABLE_ACRYLICBLURBEHIND, .AccentFlags = 2, .GradientColor = color, .AnimationId = 0 };
+        WindowCompositionAttributeData data = {
+            .Attribute = WindowCompositionAttribute::WCA_ACCENT_POLICY,
+            .Data = &accPol,
+            .SizeOfData = sizeof(accPol)
+        };
+        auto user32dll = GetModuleHandle(L"user32.dll");
+        if (user32dll) {
+            PSetWindowCompositionAttribute SetWindowCompositionAttribute = (
+                reinterpret_cast<PSetWindowCompositionAttribute>(GetProcAddress(user32dll, "SetWindowCompositionAttribute"))
+                );
+            if (SetWindowCompositionAttribute)
+            {
+                auto res = SetWindowCompositionAttribute(hwnd, &data);
+                if (SUCCEEDED(res))
+                {
+                    uimodel.setAcrylicEffect(true);
+                }
+            }
+        }
+    }
 
     // extend the frame fully into the client area => draw all outside the window frame.
     MARGINS margins = { -1 };

GlosSIConfig/manifest.xml

@@ -0,0 +1,32 @@
+<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
+<assembly manifestVersion="1.0" xmlns="urn:schemas-microsoft-com:asm.v1" xmlns:asmv3="urn:schemas-microsoft-com:asm.v3">
+  <description>GlosSI - Config</description>
+  <compatibility xmlns="urn:schemas-microsoft-com:compatibility.v1">
+    <application>
+      <!-- Windows 10/11 -->
+      <supportedOS Id="{8e0f7a12-bfb3-4fe8-b9a5-48fd50a15a9a}"/>
+      <!-- Windows 8.1 -->
+      <supportedOS Id="{1f676c76-80e1-4239-95bb-83d0f6d0da78}"/>
+      <!-- Windows 8 -->
+      <supportedOS Id="{4a2f28e3-53b9-4441-ba9c-d69d4a4a6e38}"/>
+      <!-- Windows 7 -->
+      <supportedOS Id="{35138b9a-5d96-4fbd-8e2d-a2440225f93a}"/>
+    </application>
+  </compatibility>
+  <trustInfo xmlns="urn:schemas-microsoft-com:asm.v3">
+    <!--<security>
+      <requestedPrivileges>
+        --><!--
+                  UAC settings:
+                  - app should run at same integrity level as calling process
+                  - app does not need to manipulate windows belonging to
+                    higher-integrity-level processes
+                  --><!--
+        <requestedExecutionLevel
+          level="asInvoker"
+          uiAccess="false"
+        />
+      </requestedPrivileges>
+    </security>-->
+  </trustInfo>
+</assembly>

GlosSIConfig/qml/main.qml

@@ -30,7 +30,7 @@ Window {
 
     title: qsTr("GlosSI - Config")
 
-    color: colorAlpha(Material.background, 0.98)
+    color: uiModel.hasAcrlyicEffect ? "transparent" : colorAlpha(Material.background, 0.9)
 
     function toggleMaximized() {
         if (window.visibility === Window.Maximized || window.visibility === Window.FullScreen) {
@@ -120,7 +120,7 @@ Window {
             anchors.leftMargin: -16
             radius: 16
             color: Qt.lighter(Material.background, 1.6)
-            bgOpacity: 0.8
+            bgOpacity: 0.3
 
             Item {
                 anchors.top: parent.top