Why wouldn't I be able to capture output of a WINE program?
I don't know, but go ahead and try. I've tried doing it dozens of times, along with googling about STDOUT of wine. Nothing. You can't do it.
I've tried parenting
wine Blockland.exe and
./Blockland.exe and just flat out calling
Blockland.exeHalf of it didn't work, the other half didn't capture STDOUT.