Here is straight out of the help file, hope it helps..
#include
Opt('MustDeclareVars', 1)
Example()
;-------------------------------------------------------------------------------------
; Example - Press the button to see the value of the radio boxes
; The script also detects state changes (closed/minimized/timeouts, etc).
Func Example()
Local $button_1, $group_1, $radio_1, $radio_2, $radio_3
Local $radioval1, $radioval2, $msg
Opt("GUICoordMode", 1)
GUICreate("Radio Box Demo", 400, 280)
; Create the controls
$button_1 = GUICtrlCreateButton("B&utton 1", 30, 20, 120, 40)
$group_1 = GUICtrlCreateGroup("Group 1", 30, 90, 165, 160)
GUIStartGroup()
$radio_1 = GUICtrlCreateRadio("Radio &0", 50, 120, 70, 20)
$radio_2 = GUICtrlCreateRadio("Radio &1", 50, 150, 60, 20)
$radio_3 = GUICtrlCreateRadio("Radio &2", 50, 180, 60, 20)
; Init our vars that we will use to keep track of GUI events
$radioval1 = 0 ; We will assume 0 = first radio button selected, 2 = last button
$radioval2 = 2
; Show the GUI
GUISetState()
; In this message loop we use variables to keep track of changes to the radios, another
; way would be to use GUICtrlRead() at the end to read in the state of each control
While 1
$msg = GUIGetMsg()
Select
Case $msg = $GUI_EVENT_CLOSE
MsgBox(0, "", "Dialog was closed")
Exit
Case $msg = $GUI_EVENT_MINIMIZE
MsgBox(0, "", "Dialog minimized", 2)
Case $msg = $GUI_EVENT_MAXIMIZE
MsgBox(0, "", "Dialog restored", 2)
Case $msg = $button_1
MsgBox(0, "Default button clicked", "Radio " & $radioval1)
Case $msg >= $radio_1 And $msg <= $radio_3
$radioval1 = $msg - $radio_1
EndSelect
WEnd
EndFunc ;==>Example
