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PTKDev's avatar
PTKDev
Visitor
11 years ago

Delete DrawObject

If i use DrawObject in roScreen, is possibile delete this object in a second time?


    screen = CreateObject("roScreen")
    screen.SetMessagePort(port)
    screen.Clear(&hFFFFFF00)
    bitmap=CreateObject("roBitmap", "pkg:/images/header.png")
    id = screen.DrawObject(0, 124, bitmap)   'this line is bad, how i replace it for get id of element?
    screen.show()

   ' ========= HOW REPLACE THIS BAD CODE WITH CORRECT CODE? EXAMPLE DELETE DRAWOBJECT IF I PRESS UP BUTTON ======== 
    while true
        msg = wait(0, port)
        if type(msg) = "roUniversalControlEvent" then
            code = msg.GetInt()
            
            if (code = 0) 'back button
                return -1
            else if (code = 2) 'up button
                screen.DeleteObject(id)   'this line is bad, how i replace it for delete element from id?
            end if
            
        end if
    end while
    '=============================================
Roku Developer Program

2 Replies

  • squirreltown's avatar
    squirreltown
    Roku Guru
    11 years ago
    showobject = 1

     while true
     if showobject = 1
         screen.drawobject(0,0, object)
      end if

     if (code = 2) 'up button
         showobject = 0
      end if
     end while
  • RokuMarkn's avatar
    RokuMarkn
    Visitor
    11 years ago
    Generally with roScreen, when you want to change anything on the screen, you redraw the entire screen. So to "delete" an object, you just redraw the screen without drawing that object.

    --Mark