August 6th, 2017, 11:59 pm
It puts the game into windows mode automatically, as soon as you launch SAMP. The size of the window will be the size of the resolution you have IG (change resolution IG, to change the size) but you can still alter it by just pressing esc and using your cursor to adjust the size, albeit you will have to do this every time you login. I just recommend fiddling around with the resolutions IG to see what size you want though, it's better in the long run.
If you like what you hear, here's how you install it: You put the .asi file into your gta directory and launch samp. If you don't have any asi loader, you download any asi loader you like and then follow the first step.
EDIT: I'm not sure if i've misread your intentions judging by your posts above? You want to be fullscreen?