bro , got link for this?

i have some question to ask , how to make the full screen become half screen?
"got black line on both side of the screen"
could it customize? if possible i want to make the btm and up have black line too,
currently using wide screen , but i dont need so big screen in wc3, thk.

possible can done in counterstrike too?thx

p/s : i dont want play in window screen , cause when i move my mouse will gone to other tab =.=