with(getplayer(xi)) question

[Jimmii]

Ok, i am rather new to... well basically the npc-server setup itself... and i have a few questions

if i am on this account, and fire an NPC that has

with(getplayer(MeoDea)) {showimg 201,block.png,playerx,playery;}

only MeoDea will be able to see the image right?
and if so, if a seperate NPC player MeoDea has calls hideimg 201, will it hide this image?

and if i do

with(getplayer(MeoDea)) {timeout=4;}

will it set a timeout for MeoDea to 4 seconds?

Sorry if these seem like simple questions, but i was told getplayer(i) makes it like player i is the active player.... but not quite... and i don't know how close it is to them being the active player