From cc915f888cca167e32157f66a81654c8959e1374 Mon Sep 17 00:00:00 2001 From: Robin Krom Date: Sun, 16 Oct 2022 16:31:00 +0200 Subject: [PATCH 1/2] fix: Under Windows - Arithmetic operation resulted in an overflow. --- src/Windows/Avalonia.Win32/Interop/UnmanagedMethods.cs | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/src/Windows/Avalonia.Win32/Interop/UnmanagedMethods.cs b/src/Windows/Avalonia.Win32/Interop/UnmanagedMethods.cs index 9d1920498b..f28f4fd740 100644 --- a/src/Windows/Avalonia.Win32/Interop/UnmanagedMethods.cs +++ b/src/Windows/Avalonia.Win32/Interop/UnmanagedMethods.cs @@ -1877,7 +1877,7 @@ namespace Avalonia.Win32.Interop public static uint LGID(IntPtr HKL) { - return (uint)(HKL.ToInt32() & 0xffff); + return (uint)(HKL.ToInt64() & 0xffff); } public const int SORT_DEFAULT = 0; From 10b584d95c7dd903f18f706e1f64cdcaffbd18a2 Mon Sep 17 00:00:00 2001 From: Robin Krom Date: Wed, 19 Oct 2022 22:14:48 +0200 Subject: [PATCH 2/2] After the fix still causing issues, I figured the value must be >0xffff_ffff so not fitting. I changed to logic to handle that case too. --- src/Windows/Avalonia.Win32/Interop/UnmanagedMethods.cs | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/src/Windows/Avalonia.Win32/Interop/UnmanagedMethods.cs b/src/Windows/Avalonia.Win32/Interop/UnmanagedMethods.cs index f28f4fd740..3bcc395abe 100644 --- a/src/Windows/Avalonia.Win32/Interop/UnmanagedMethods.cs +++ b/src/Windows/Avalonia.Win32/Interop/UnmanagedMethods.cs @@ -1877,7 +1877,10 @@ namespace Avalonia.Win32.Interop public static uint LGID(IntPtr HKL) { - return (uint)(HKL.ToInt64() & 0xffff); + unchecked + { + return (uint)((ulong)HKL & 0xffff); + } } public const int SORT_DEFAULT = 0;