func Init()
  include('dwx')
  stack &= block.select(BLK_OBJ)
  println('dwx.Register "user32", "FindWindow", "i=', (isset(ClassName) ? 's' : 'n'), (isset(Caption) ? 's' : 'n'), '", "r=h"')
  block.select(_arr.pop(stack))
end

func MakeCode(dt)
  return('dwx.FindWindow(' + (isset(ClassName) ? ClassName : 0) + ', ' + (isset(Caption) ? Caption : 0) + ')')
end

func doFind(_data)
  if(linked(WindowID))
    println(res, ' = ', MakeCode(_data))
    event(onFound, res)
  else
    event(onFound, MakeCode(_data))
  end
end

func WindowID()
  if(linked(doFind))
    return(res)
  else
    return(MakeCode())
  end
end