Fullscreen and window screen

can i ask a script that if we call, it'll make our game to be fullscreen, and the other one , if we call it, it turn our game to be window screen
thx
<For rpg maker XP>

This should be in rmxp section then. Anyway, that is already built in. Press alt and enter at once.

Yeah, it's the player who press the alt + Enter right
but, is that possible, if we, the maker, make the script, so when we call the script, it'll make it full screen, or window screen as we wish :3
not as the player, but when we call the script, it simply change the screen....

#put this in script/make new folder (place it at the very top) :
$key_simulieren = Win32API.new 'user32', 'keybd_event', %w(l l l l), ''
$key_simulieren.call(18,0,0,0)
$key_simulieren.call(13,0,0,0)
$key_simulieren.call(13,0,2,0)
$key_simulieren.call(18,0,2,0)
# this will make full screen the first time you play
# its not me who made it so dont ask about configuring it using switch or whatever