-module(ex8).
-copyright('Copyright (c) 1991-97 Ericsson Telecom AB').
-vsn('$Revision: /main/release/2 $ ').
-export([start/0]).
start() ->
gs:window(win,gs:start(),{map,true}),
gs:radiobutton(rb1,win,[{label,{text,"rb1"}},{value,a},{y,0}]),
gs:radiobutton(rb2,win,[{label,{text,"rb2"}},{value,a},{y,30}]),
gs:radiobutton(rb3,win,[{label,{text,"rb3"}},{value,b},{y,60}]),
rb_loop().
rb_loop() ->
receive
{gs,Any_Rb,click,Data,[Text, Grp, a | Rest]} ->
io:format("either rb1 or rb2 is on.~n",[]),
rb_loop();
{gs,rb3,click,Data,[Text, Grp, b | Rest]} ->
io:format("rb3 is selected.~n",[]),
rb_loop()
end.