GUI

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Abdullah Tahir
Abdullah Tahir il 4 Giu 2012
hi... Can you please tell me how to access GUI (Graphical User Interface) variables in command window? Actually I have declared a button in the GUI and before this button a code runs "a=2" after pressing this button, I want to increment in this variable "a" in the command window. How may I access this variable in command window. Help me, thanks.
  3 Commenti
Dmitry
Dmitry il 11 Lug 2012
If you want to get access to variable "a" from workspace in button callback you should declare "a" as global: "global a; a=2;". Then in button callback: "global a; a=a+1"; But if you use GUIDE I suppose you should not use command window, it's inconvenient.
Abdullah Tahir
Abdullah Tahir il 25 Lug 2012
Global does not work here. Global is efficient to access variables in different functions in GUI's m-file. But it is unable to export variables to command window.

Accedi per commentare.

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Luffy
Luffy il 11 Lug 2012
Modificato: Ned Gulley il 11 Lug 2012
If you want to access data that is in base workspace in your gui functions, use
v = evalin('base','name of variable u want to access');
% the variable's data is now stored in v.
If u want to save data of ur gui work space to base, use
assignin('base','name of variable u want to save','value of variable');

Più risposte (1)

Caleb
Caleb il 16 Lug 2012
% Intial value of a
a = 2;
setappdata(0,'a',a)
%%%%%%%%%%%%%
setappdata(0,'a',a+1) % Put this part within the callback function of the pushbutton
% Get the value of a
getappdata(0,'a')

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