Macro Click()
  mouse_event_(#MOUSEEVENTF_LEFTDOWN, 0, 0, 0, 0)
  mouse_event_(#MOUSEEVENTF_LEFTUP, 0, 0, 0, 0)
EndMacro

; Click at the current location
Click()

Delay(1000) ; Wait a second

; Move to a new location and click it
SetCursorPos_(50, 50)
Click()