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Do not use the manifest setting as it prevents setting DPI_AWARENESS_CONTEXT_PER_MONITOR_AWARE_V2

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The manifest has dpiAware set to True/PM (PerMonitor) and won't allow a change to PerMonitorV2 afterwards.

https://learn.microsoft.com/en-us/windows/win32/hidpi/setting-the-default-dpi-awareness-for-a-process
This commit is contained in:
LunarInvasion 2025-11-20 15:48:10 +00:00
parent 10fca0e8b1
commit 4e88d1d589
2 changed files with 9 additions and 5 deletions
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12
examples/example_win32_opengl3/example_win32_opengl3.vcxproj
View file

@ -100,7 +100,8 @@
<SubSystem>Console</SubSystem>
</Link>
<Manifest>
<EnableDpiAwareness>PerMonitorHighDPIAware</EnableDpiAwareness>
<EnableDpiAwareness>
</EnableDpiAwareness>
</Manifest>
</ItemDefinitionGroup>
<ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
@ -117,7 +118,8 @@
<SubSystem>Console</SubSystem>
</Link>
<Manifest>
<EnableDpiAwareness>PerMonitorHighDPIAware</EnableDpiAwareness>
<EnableDpiAwareness>
</EnableDpiAwareness>
</Manifest>
</ItemDefinitionGroup>
<ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
@ -139,7 +141,8 @@
<SubSystem>Console</SubSystem>
</Link>
<Manifest>
<EnableDpiAwareness>PerMonitorHighDPIAware</EnableDpiAwareness>
<EnableDpiAwareness>
</EnableDpiAwareness>
<OutputManifestFile>
</OutputManifestFile>
</Manifest>
@ -167,7 +170,8 @@
<SubSystem>Console</SubSystem>
</Link>
<Manifest>
<EnableDpiAwareness>PerMonitorHighDPIAware</EnableDpiAwareness>
<EnableDpiAwareness>
</EnableDpiAwareness>
<OutputManifestFile>
</OutputManifestFile>
</Manifest>

2
examples/example_win32_opengl3/main.cpp
View file

@ -37,7 +37,7 @@ int main(int, char**)
{
// Make process DPI aware and obtain main monitor scale
// https://learn.microsoft.com/en-us/windows/win32/hidpi/setting-the-default-dpi-awareness-for-a-process
// ImGui_ImplWin32_EnableDpiAwareness(); // This is already set in the manifest so the call will fail, but leaving it for completeness.
ImGui_ImplWin32_EnableDpiAwareness();
float main_scale = ImGui_ImplWin32_GetDpiScaleForMonitor(::MonitorFromPoint(POINT{ 0, 0 }, MONITOR_DEFAULTTOPRIMARY));
// Create application window