Gui, Font,,Arial
Gui, Add, Edit, r20 w350 ReadOnly -Tabstop HwndhOut vOutput, AHK Chat
Gui, Font
Gui, Add, Edit, r10 wp y+0 vInput
Gui, Add, Button, x+10 y+-25 h25 w100 Default, Send

Gui, Show,,Chat
return
GuiClose:
ExitApp

ButtonSend:
Gui, Submit, NoHide
If !Input
 return
Input := Output "`n« username »`n" RegExReplace(Input,"^(\s+)|(\s+)$")
GuiControl,,Output, %Input%
SendMessage, 0x115,7,,,ahk_id %hOut%  ;WM_VSCROLL
GuiControl,,Input
GuiControl, Focus, Input
return