Show dialog box for uncaught exception (Windows, lld-link)

[SimonN]

On Sunday, 5 May 2024 at 18:28:29 UTC, SimonN wrote:
> My implementation for the message box is now:

According to [UTF-8 
Everywhere](https://utf8everywhere.org/#windows), I shouldn't use 
`MessageBoxA` at all. The `A` means ANSI codepages, _not_ UTF-8. 
My above code _will_ show garbage output when there is some 
non-ASCII in the exception message.

Better: Convert to UTF-16 yourself and call `MessageBoxW`:

     version (Windows) {
         import core.sys.windows.windows;
         import std.conv;
         const wstring messageBody = wtext(/* ... */, "\0");
         MessageBoxW(null, messageBody.ptr, null, MB_ICONERROR);
         throw /* ... */;
     }

-- Simon