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Problem passing handles structure

Problem passing handles structure

Problem passing handles structure

(OP)
I have a problem with a GUI I have been working on (generated with GUIDE). In one function I assign a value to a variable and then put it in the handles structure and update it...
 
units_x = 'in';
handles.units_x = units_x;
guidata(hObject, handles);
 
but when I try and use handles.units_x in a later function Matlab tells me field units_x does not exist. I managed to get the first function to pass the handles by making it an output of the function
like this...
 
[x y handles] = function whateva(hObject, handles)
 
It works but it seems like I should have to do it this way,
especially since this is the only function in which I have had to pass the handles this way.
Thanks for any help.

RE: Problem passing handles structure

Read this it explains how variables work in Matlab and has various links in the same page to many programing tips for matlab.

BSK

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