MATLAB: Change string of pushbutton from radio button callback

Question

Hey all,

I'm trying to change the string of a pushbutton dynamically depending on which radio button is selected but my code is off and errors. It must be something really simple i'm missing. Here's my code:

% **********************************************  

% OPTION BUTTONS SELECTION..
% **********************************************  
% --- Executes when selected object is changed in uibuttongroup1.
function uibuttongroup1_SelectionChangedFcn(hObject, eventdata, handles)
% DECLARE GLOBAL VARIABLES IN FUNCTION..
global FiltX; % VARIABLE FOR WHICH FILTER OPTION IS SELECTED..
% SWITCH: CHECK WHICH RADIO BUTTON IS SELECTED..
switch get(eventdata.NewValue,'Tag');
    case 'OptPITCHDET'
        FiltX = 1;
        set(hObject.btAPPLYFT,'String','DETECT PITCHES..');
    case 'OptISOLATE'
        FiltX = 2;
        set(hObject.btAPPLYFT,'String','APPLY & LISTEN..');
    case 'OptFTNT'
        FiltX = 3;
        set(hObject.btAPPLYFT,'String','APPLY & LISTEN..');
end
% END SWITCH..
% **********************************************

Any ideas?

Thanks,

Paul..

Answer 1

change hObject to handles so

        set(hObject.btAPPLYFT,'String','DETECT PITCHES..');

turns to

        set(handles.btAPPLYFT,'String','DETECT PITCHES..');