Run in borderless full screen window display:
Use a text editor to edit the "user_settings.config" file in the directory:
Change the borderless_fullscreen = false line to borderless_fullscreen = true.
Also, make sure you have fullscreen = false defined in the file.
Press the indicated buttons or keys to cast the corresponding spell.
Spell Controller Keyboard
Ice Ray X, X [Shift], [Shift]
Freeze X + Y [Shift] + [Space]
Ice Orb X + B [Shift] + Right Click
Fire Bolt Y, Y [Space], [Space]
Nether Teleport Y + X [Space] + [Shift]
Fire Catapult Y + B [Space] + Right Click
Force Field B, B Right Click, Right Click
Arc Lightning B + X Right Click + [Shift]
Arc Shotgun B + Y Right Click + [Space]