Matlab - Send Variable From GUI to Function

I am trying to call a GUI f开发者_C百科rom a function, select an item from a pop-up menu in the GUI, and pass a variable associated with the pop-up selection back to the function. The only tutorials I find on GUIs have to do with just changing things within the GUI, but not sending anything out back to a main function.

So say I have 3 options in the pop-up: Image 1, Image 2, Image 3. When for instance Image 2 is selected and the OK button is pressed, I'd like the string 'Image 2' be passed back to the main function that called the GUI.

Thanks for the help!

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You can try something like: [selection, ok] = listdlg('PromptString','Select a value:', 'SelectionMode','single', 'ListString',['Value 1';'Value 2';'Value 3']). The variable selection will give you the index of the selected value.