From bff890f635dea11bf8a6f4c61f2e1ce85aeef6af Mon Sep 17 00:00:00 2001
From: Quantum <quantum2048@gmail.com>
Date: Wed, 3 Jun 2026 21:54:25 -0400
Subject: [PATCH] [idd] helper: use per-monitor DPI awareness v2

This avoids weird issues when scaling menus and non-client areas
dynamically.
---
 idd/LGIddHelper/HighDPI.manifest    |  9 +++++++++
 idd/LGIddHelper/LGIddHelper.vcxproj | 15 +++++++++++----
 2 files changed, 20 insertions(+), 4 deletions(-)
 create mode 100644 idd/LGIddHelper/HighDPI.manifest

diff --git a/idd/LGIddHelper/HighDPI.manifest b/idd/LGIddHelper/HighDPI.manifest
new file mode 100644
index 00000000..9dfd1e2e
--- /dev/null
+++ b/idd/LGIddHelper/HighDPI.manifest
@@ -0,0 +1,9 @@
+<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
+<assembly xmlns="urn:schemas-microsoft-com:asm.v1" manifestVersion="1.0" xmlns:asmv3="urn:schemas-microsoft-com:asm.v3">
+  <asmv3:application>
+    <asmv3:windowsSettings>
+      <dpiAware xmlns="http://schemas.microsoft.com/SMI/2005/WindowsSettings">true/pm</dpiAware>
+      <dpiAwareness xmlns="http://schemas.microsoft.com/SMI/2016/WindowsSettings">PerMonitorV2</dpiAwareness>
+    </asmv3:windowsSettings>
+  </asmv3:application>
+</assembly>
diff --git a/idd/LGIddHelper/LGIddHelper.vcxproj b/idd/LGIddHelper/LGIddHelper.vcxproj
index 5ac47d2b..388d2469 100644
--- a/idd/LGIddHelper/LGIddHelper.vcxproj
+++ b/idd/LGIddHelper/LGIddHelper.vcxproj
@@ -91,7 +91,8 @@ copy /Y "$(ProjectDir)VERSION" "$(SolutionDir)$(Platform)\$(Configuration)\LGIdd
     </PostBuildEvent>
     <Manifest />
     <Manifest>
-      <EnableDpiAwareness>PerMonitorHighDPIAware</EnableDpiAwareness>
+      <EnableDpiAwareness>false</EnableDpiAwareness>
+      <InputResourceManifests>$(ProjectDir)HighDPI.manifest</InputResourceManifests>
     </Manifest>
   </ItemDefinitionGroup>
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
@@ -118,7 +119,8 @@ copy /Y "$(ProjectDir)VERSION" "$(SolutionDir)$(Platform)\$(Configuration)\LGIdd
     </PostBuildEvent>
     <Manifest />
     <Manifest>
-      <EnableDpiAwareness>PerMonitorHighDPIAware</EnableDpiAwareness>
+      <EnableDpiAwareness>false</EnableDpiAwareness>
+      <InputResourceManifests>$(ProjectDir)HighDPI.manifest</InputResourceManifests>
     </Manifest>
   </ItemDefinitionGroup>
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
@@ -144,7 +146,8 @@ copy /Y "$(ProjectDir)VERSION" "$(SolutionDir)$(Platform)\$(Configuration)\LGIdd
     </PostBuildEvent>
     <Manifest />
     <Manifest>
-      <EnableDpiAwareness>PerMonitorHighDPIAware</EnableDpiAwareness>
+      <EnableDpiAwareness>false</EnableDpiAwareness>
+      <InputResourceManifests>$(ProjectDir)HighDPI.manifest</InputResourceManifests>
     </Manifest>
   </ItemDefinitionGroup>
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
@@ -174,7 +177,8 @@ copy /Y "$(ProjectDir)VERSION" "$(SolutionDir)$(Platform)\$(Configuration)\LGIdd
     </PostBuildEvent>
     <Manifest />
     <Manifest>
-      <EnableDpiAwareness>PerMonitorHighDPIAware</EnableDpiAwareness>
+      <EnableDpiAwareness>false</EnableDpiAwareness>
+      <InputResourceManifests>$(ProjectDir)HighDPI.manifest</InputResourceManifests>
     </Manifest>
   </ItemDefinitionGroup>
   <ItemGroup>
@@ -216,6 +220,9 @@ copy /Y "$(ProjectDir)VERSION" "$(SolutionDir)$(Platform)\$(Configuration)\LGIdd
   <ItemGroup>
     <ResourceCompile Include="resource.rc" />
   </ItemGroup>
+  <ItemGroup>
+    <Manifest Include="HighDPI.manifest" />
+  </ItemGroup>
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
   <ImportGroup Label="ExtensionTargets" />
   <Target Name="GenerateVersionInfo" BeforeTargets="ClCompile">