How to have a struct as input to an external function?

Hi,

I want to call an external function inside my matlab gui with the handles structure as input, as all my input parameters are inside that structure. However, when trying

myfct(handles)

Inside one of my callbacks in the gui m-file i receive a matlab error Undefined function 'myfct' for input arguments of type 'struct'.

I really don't know what Im doing wrong, especially because I have done similar earlier in my gui. Anyone who can help...

Answer 1

[Ryan Livingston]

Odds are MYFCT is not on the path when the GUI code is running so it cannot be located. If you replace that with a call to:

 which myfct

it should again say it is not found. You can try

1. Add MYFCT to the MATLAB path
2. Define MYFCT as a subfunction in the GUI code
3. Dynamically add the path to it in the GUI open callback and remove the path in the 'CloseRequestFcn' callback:

http://www.mathworks.com/help/matlab/creating_guis/initializing-a-guide-gui.html

http://www.mathworks.com/help/matlab/creating_guis/working-with-callbacks-in-guide.html#f10-998980

[Christian]

Your right its not in the path, but i dont understand why matlab says so. The file (myfct.m) is in the exact same folder as my gui files (.m and .fig)...?

So how do i add the myfct to the matlab path??

[Walter Roberson]

Perhaps the code changed directory at some point?

Answer 2

[Christian]

Okay, somehow this issue fixed itself. However, have no idea how. So could someone maybe tell me how to add a function to the matlab path...?

[Ryan Livingston]

http://www.mathworks.com/help/matlab/ref/addpath.html