Ofcourse, Thanks.

Proper code line:

guiRadio := win.addRadioChoice('Age', ['Young', 'Old', NILA]:ARRAY_OF_CHAR).setState(1)

@mrdarek
Have you tried "guiRadio.setState(1)"?

Thanks
OK, Code is tested and start working in my program.
I have only one ask for future - how modify this code to on start first option was unchecked and second checked?

Here is what you wanted:
<pre>MODULE 'std/cGui'

PROC main()
DEF quit:BOOL
DEF win:PTR TO cGuiWindow, item:PTR TO cGuiItem
DEF guiRadio:PTR TO cGuiRadioChoice, guiOK:PTR TO cGuiButton
DEF choices:ARRAY OF ARRAY OF CHAR

CreateApp().build() ->equivalent to IsDesktopApp()

->create the GUI
win := CreateGuiWindow('example')
win.beginGroupVertical()
guiRadio := win.addRadioChoice('Age', ['Young', 'Old', NILA]:ARRAY_OF_CHAR)
guiOK := win.addButton('OK')
win.endGroup()
win.build()

->handle GUI events
quit := FALSE
REPEAT
item := WaitForChangedGuiItem()
SELECT item
CASE NIL
->(a non-item event occured) so check if user tried to close the window
IF win.getCloseRequest() THEN quit := TRUE

CASE guiOK
Print('You chose radio item number \d\n', guiRadio.getState())

choices := guiRadio.infoChoices()
Print('You chose radio item string "\s"\n', choices[guiRadio.getState()])
ENDSELECT
UNTIL quit

win.close()
FINALLY
PrintException()
ENDPROC</pre>

I need radio button and totally not understand how to do it. Can I ask for example with 2 radio buttons and 1 normal button OK and how read state this radio buttons (which was selected...) after pressing OK???