GUI handles.*** vs hObject

Hi guys,

Currently I am doing some GUI programing. (I am a newbie in this so if there is something wrong, please feel free to give me advices).

I have a radio button along its callback function. Along with that, I also produce another function to do some calculation/condition checking.

function Evaluation
if <obey condition>
set(handles.radiobutton,'Value',1);

guidata(handles.output, handles);
<radiobutton call back>

function <radiobutton callback> hObecj eventdata handles

chck = get(hObject,'Value');
if get(hObject,'Value') == 1 then
%do this
else
%do that

Surprisingly, the value I get for chck is not as it should be (it should be 1 but it appeared to be 3). Spending ages stopping and watching step-by-step, I still have no clue how to solve it.

Thanks for your help.

Answer 1

[Muthu Annamalai]

I understand you are having problems accessing a property of the radio-button class.

Since radio buttons behavior is different from other widgets in that, they are all grouped together, in a mutually exclusive fashion, and one of them is always true.

So you need to identify,

a) which of n radio buttons were selected b) and properties of the selected radio button..

So it seems to me you already know button 3 was "selected," implicitly meaning its value is true.

Also, to keep under your pillow, http://www.mathworks.com/help/matlab/ref/uibuttongroup.html?searchHighlight=radio+button