function use in GUI returned values

I have several push buttons and text box in my GUI that I mange how to get the chosen or written value, as showen in the code below for example

itemsx = get(hObject,'String');
index_selectedx = get(hObject,'Value');
Dx = itemsx{index_selectedx};

now I have new button called run this button call a function called start_simulation() what I need to do is how to return the value of Dx as an input to start_simulation() function the known way which is start_simulation(Dx) doesn't work

[Image Analyst]

What callback it that code in? One of the buttons or the textbox???

Answer 1

[Ben11]

You might need to use

Dx = str2num(Dx)

before calling the function is it possible?

[aya]

doesn't work, it seems that i only can use the value of Dx in the callback function of the drop down menu that i take it from the value is not readable by other push buttons

[Ben11]

Well the use of hObject is for a particular callback, i.e. the one currently executing. If you want to access the content of other elements (pushbuttons, popup menus, etc) you need to use their handles.

In your example, when pressing the pushbutton you want to call:

itemsx = get(handles.textbox1,'String');
index_selectedx = get(handles.textbox1,'Value');
Dx = itemsx{index_selectedx};

which is more likely to work. In my example "handles.textbox1" is the handles generated by GUIDE (assuming you used GUIDE) that you can change to anything you want. It it does not work please show the error message so we can help you better.