Use and update value from GUI

How do I get user input in a GUI for a variable and use it in another function. I need to run an algorithm where the user changes a variable value during run time.

Answer 1

[Image Analyst]

Put a control on the GUI that will get the user input. This control could take the form of a edit text box, a slider, a popup menu, a listbox, a checkbox, or whatever you want. To get the values from any function or callback function that has access to handles, do this:

userValue = handles.slider1.Value;
userValue = handles.popup1.Value;
userValue = handles.editText1.String;
userValue = handles.checkbox1.Value;
userValue = handles.listbox1.Value;