MATLAB: In GUI , how to make the handles be used in the function

guihandles

use global or sth. ? Is there any way?

when i create my function , it occurs error: Attempt to reference field of non-structure array.

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ok, i found one way ,just set the handles as a parameter and pass it to my function.

function myfun(handles,params)

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MATLAB: Handles.

It depends on how it was defined:

handles.num = 15

Now "handles" is a struct containing the field "num", which has the value 15. But if your define "handles" as object, it could be something different.

So please take the time to investigate it yourself:

class(handles)
whos('handles')
methods(handles)

If I dare to guess, "handles = guidata(FigureHandle)" might be the creator of the struct "handles". If so, see "help guidata" for more details.

MATLAB: Handles problem

setappdata() and getappdata() do not take the handles structure as their first argument. They take the handle of a single graphics object, and they act with respect to that exact graphics object.

This differs from guidata() in that guidata climbs the hierarchy of the object given to it in order to find the ancestor figure and attaches the app data to that figure.

If you want to attach app data to your figure, find the figure first. For example,

setappdata(ancestor(hObject,'figure'),'boardtype',1);

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MATLAB: Handles.

MATLAB: Handles problem

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