"Enter" key function to assign variable in GUI

I have a problem in adding enter key to my GUI, while taking variable from the user. How can i write a function for enter key?

[Kevin Chng]

Enter key?

Do you need a callback button for it?

[Emre Can Ertekin]

For example in my gui i have a amplitude of the signal in edittext box, i want the when user enter the value of amplitude end press 'Enter button in keyboard' gui should assign the valur and change the axes.

[Kevin Chng]

App designer?

Answer 1

[Walter Roberson]

Use the Callback property of the uicontrol. It will be run when the user presses return after selecting the control, or if the user makes a change to the content of the edit field and then clicks somewhere outside the control.