show and get data in button callback at GUI

Hello, I program a software in GUI. I need to show some data to user then get some other data from user. but I problem is this:

I need to show and get this data in While code in button callback function.

Please see my codes:

function button1_Callback(hObject, eventdata, handles)
while w>10
% calculate A here and then:
% I need show A to user and then get B.
% continue coding with B.
end

I want show a number to user and get an other number with GUI element (static text/ edit text box)

How I can do this? Is a popup page solution? How? or?

[Joakim Magnusson]

Why don't you just show A in a static text box in the same window as your button1? And then the user can write B in an edit text box?

Answer 1

[Image Analyst]

See the FAQ: http://matlab.wikia.com/wiki/FAQ#How_can_I_share_data_between_callback_functions_in_my_GUI.28s.29.3F