How to use handles in a function??

Hi everybody!

I need to use a pushbutton handles in a function that I use in my fig's .m file.

I have to use a set: at the end of the actions made by the function, this pushbutton has to be shown...

When I run my function, naturally it tells to me that it can't recognize the handles (because in the function there're no handles!)... There's a way to "globalize" my handles??

I don't know if it's correct to assign a variable to my handles, something like

var=handles.tag;

or to use "setappdata" and "getappdata" functions... Can anyone help me?? Thanks a lot!!

Answer 1

[Walter Roberson]

Before the line that accesses handles, add

handles = guidata(gcf);

Answer 2

[Jan]

Currently the description of the problem is not clear. The values or the handles cannot be "published" automatically. Storing them using SETAPPDATA is not helpful also, because usually the handles struct is stored in the ApplicationData by calling guidata already.

Please explain the problem again with more details by editing the original message - not as comment or answer.

[Sean de Wolski]

Eww GUIDATA!!!

Answer 3

[Jethro]

So... I create (helped by users' answers) a function, separated from my .m file, that creates me a number of pushbutton based on unique of arrays.

In this function I set everything (like tag, callback, String...) and naturally, in callbacks, actions that my pushbutton has to do. Now, when I press one of pushbuttons generated by my function, I have to start a set: this set must make visible another pushbutton, that already exists in my guide (it's set as 'visible', 'off').

The code I have to insert in my function file is like

set(handles.PB_back, 'visible', 'on');
If I add it like that, Matlab shows me an error:

??? Undefined variable "handles" or class "handles.PB_Rit_Ist".
Error in ==> GUI1 at 72
          set(handles.PB_Rit_Ist, 'visible', 'on');
??? Error while evaluating uicontrol Callback

because in the function file there's no handles!

So I have to "generalize" this handles in my fig's .m file to use it in this function... How can I do it??

[Jethro]

If you write it in a new answ, I can choose yours, 'cause you solved my prob!