How to use handles in a function??

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Jethro
Jethro 2012-1-19
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!!

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采纳的回答

Walter Roberson
Walter Roberson 2012-1-19
Before the line that accesses handles, add
handles = guidata(gcf);

更多回答（2 个）

Jan
Jan 2012-1-19
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.
Jethro
Jethro 2012-1-19
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??
  1 个评论
Jethro
Jethro 2012-1-19
If you write it in a new answ, I can choose yours, 'cause you solved my prob!

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