BBjListBox::getSelectedIndex

rem 'Get the index of the currently selected item in a list box control

rem 'Obtain the instance of the BBjAPI object
let myAPI! = BBjAPI()

rem 'Open the SysGui device
SYSGUI = UNT
OPEN (SYSGUI) "X0"

rem 'Obtain the instance of the BBjSysGui object
let mySysGui! = myAPI!.getSysGui()

rem 'Set addWindow param values
X = 10
Y = 10
WIDTH = 200
HEIGHT = 200
TITLE$="BBj Window"

rem 'Set the current context
mySysGui!.setContext(0)

rem 'Create a window
myWindow! = mySysGui!.addWindow(X,Y,WIDTH,HEIGHT,TITLE$)

rem 'Add a list box control to the window
myListBox! = myWindow!.addListBox(101,50,100,90,60,"",$0000$)

rem 'Add items into the list box
FOR I = 1 TO 4
    ITEM$="ITEM " + STR(I)
    myListBox!.addItem(ITEM$)
NEXT I

rem 'Select an item in the list box
myListBox!.selectIndex(2)

rem 'Get the index of the currently selected item in a list box control
rem 'this will return 2
SEL_INDEX = myListBox!.getSelectedIndex()

rem 'Get the item at the selected index, this will return "ITEM 3"
SEL_ITEM$ = myListBox!.getItemAt(SEL_INDEX)

rem 'Register the CALLBACK routines
CALLBACK(ON_CLOSE,APP_CLOSE,mySysGui!.getContext())

rem 'Process Events
process_events

rem 'Callback routine called when the user closes the application window
APP_CLOSE:
release