function centerWindow(center_window) local screenW,screenH=guiGetScreenSize() local windowW,windowH=guiGetSize(center_window,false) local x,y = (screenW-windowW)/2,(screenH-windowH)/2 guiSetPosition(center_window,x,y,false) end Panel_adı = guiCreateWindow(202, 147, 430, 305, "Panel ismi", false) centerWindow(Panel_adı)