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Application Fails to Launch on Older Windows 10 Versions Due to Unsupported API #628

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nilaoda opened this issue Dec 13, 2024 · 0 comments · May be fixed by #629
Open

Application Fails to Launch on Older Windows 10 Versions Due to Unsupported API #628

nilaoda opened this issue Dec 13, 2024 · 0 comments · May be fixed by #629
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@nilaoda
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nilaoda commented Dec 13, 2024

Describe the bug

A clear and concise description of what the bug is and any steps to reproduce it. Sample code or a minimal repro is helpful.

Desktop/Platform

  • OS: Windows 10 10240, LTSC 2015
  • FluentAvalonia Version: 2.2.0
  • Avalonia Version: 11.2.1

Error Details

Application: Demo.exe  
CoreCLR Version: 9.0.0  
Description: The process was terminated due to an unhandled exception.  

Exception Info: System.EntryPointNotFoundException: Unable to find an entry point named 'AdjustWindowRectExForDpi' in native library 'user32.dll'.  
   at Internal.Runtime.CompilerHelpers.InteropHelpers.FixupMethodCell(IntPtr, InteropHelpers.MethodFixupCell*) + 0x15c  
   at Internal.Runtime.CompilerHelpers.InteropHelpers.ResolvePInvokeSlow(InteropHelpers.MethodFixupCell*) + 0x3d  
   at FluentAvalonia.Interop.Win32Interop.AdjustWindowRectExForDpi(RECT*, Int32, BOOL, Int32, Int32) + 0x2f  
   at FluentAvalonia.UI.Windowing.Win32WindowManager.HandleNCCALCSIZE(WPARAM, LPARAM) + 0x159  
   at FluentAvalonia.UI.Windowing.Win32WindowManager.WndProc(HWND, UInt32, WPARAM, LPARAM) + 0x21e  
   at FluentAvalonia.UI.Windowing.Win32WindowManager.WndProcStatic(IntPtr, UInt32, IntPtr, IntPtr) + 0x72

Possible Cause:

  • The application calls the AdjustWindowRectExForDpi API, which is only available on newer Windows 10 version.
@nilaoda nilaoda added the bug Something isn't working label Dec 13, 2024
@nilaoda nilaoda linked a pull request Dec 15, 2024 that will close this issue
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Fix: Add fallback for missing DPI-related Win32 APIs nilaoda/FluentAvalonia
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@nilaoda