ModalWindow
ModalWindow(id, title, message)
modalWindow:addButton(id, text)
modalWindow:addChoice(id, text)
modalWindow:getButtonCount()
modalWindow:getChoiceCount()
modalWindow:getDefaultEnterButton()
modalWindow:getDefaultEscapeButton()
modalWindow:getId()
modalWindow:getMessage()
modalWindow:getTitle()
modalWindow:hasPriority()
modalWindow:sendToPlayer(player)
modalWindow:setDefaultEnterButton(buttonId)
modalWindow:setDefaultEscapeButton(buttonId)
modalWindow:setMessage(text)
modalWindow:setPriority(priority)
modalWindow:setTitle(text)