In ZSNES it's best you use the in-built screenshot option.Zitat von Rizzler
When the game is running just Press F1 on your keyboard and a small window will pop up with a few selections.
One of those selection is "Save Snapshot" or something like that. Highlight it and press Enter.
The picture will be saved in the directory where the game-file is and the name is a mixture of the game's name and the date and time when you took the picture.
The only thing is, that the resoultion might be under 320*240, because SNES-games are shown in a resolution of 256*224 though.
The best way to fit it in 320*240 is to stretch it in Microsoft Paint, Jasc Paint Shop Pro or Adobe Photoshop (or any other graphics program)
And don't forget to save it in 256 Colors!