Ask for Help (v1) • I have a script but I want to add ability to pause it and run it again if I click ESC button

CODE:

br := 255    ; brightness, in the range of 0 - 255, where 128 is normal
sleep, 2000 ; Start sleep 2s
VarSetCapacity(gr, 5123)
Loop {
Loop,    256
{
    If  (nValue:=(br+128)(A_Index-1))>65535
         nValue:=65535
    NumPut(nValue, gr,      2(A_Index-1), "Ushort")
    NumPut(nValue, gr,  512+2(A_Index-1), "Ushort")
    NumPut(nValue, gr, 1024+2*(A_Index-1), "Ushort")
}
hDC := DllCall("GetDC", "Uint", 0)
DllCall("SetDeviceGammaRamp", "Uint", hDC, "Uint", &gr)
DllCall("ReleaseDC", "Uint", 0, "Uint", hDC)
sleep, 2000 ; 2s internal between brighness fix, change it for faster refresh
}
return