I've also added a little line of code(which is enabled by the "nostandby" parameter that can be passed to the app):

1			// Prevent Idle-to-Sleep (monitor not affected) (see note above)
2			SetThreadExecutionState(ES_CONTINUOUS | ES_SYSTEM_REQUIRED | ES_AWAYMODE_REQUIRED); //Enable noSleep: we're enabled by the parameter!

It's executed within the main emulation loop(so on the same level as any SDL input and video rendering).

Anyone knows why Windows 10 is still entering standby after 15 minutes?

Some more information about this function call: https://stackoverflow.com/questions/34836406/ … tion-is-running

Edit: Modified it to:

1			// Prevent Idle-to-Sleep (monitor not affected) (see note above)
2			SetThreadExecutionState(ES_CONTINUOUS | ES_DISPLAY_REQUIRED | ES_SYSTEM_REQUIRED); //Enable noSleep: we're enabled by the parameter!

Now to wait for results...

Edit: That latest change seems to have done the trick! 😁