Show dialog box for uncaught exception (Windows, lld-link)
Steven Schveighoffer
schveiguy at gmail.com
Sun May 5 17:15:10 UTC 2024
On Sunday, 5 May 2024 at 14:55:20 UTC, SimonN wrote:
> My application is a graphical game. I close stdout and stderr
> by passing `-subsystem:windows` to `lld-link` to suppress the
> extra console window. For a few fatal errors (missing required
> resources, can't open display, ...), I throw exceptions, log
> them to logfile, then re-throw them to crash. I can tell
> Windows users to look in the logfile, but it would be more
> fitting on Windows to show an error dialog box in addition to
> the logging.
```d
int realMain(string[] args)
{
// all your normal code goes here
}
int main(string[] args)
{
version(Windows) {
try {
realMain(args);
} catch(Exception e) {
visualDisplayOfException(e);
throw e;
}
} else {
// presumably, non-windows systems shouldn't show a
graphical Exception
// trace?
realMain(args);
}
}
```
-Steve
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