GUI: Callback Function and visibility

I've created a push button than open a pop up wibndow. the user can input some numbers and save them in a array-variable called datax.

How can i use this datas to call another function pressing another pushbutton? Matlab shows me an error that i think it is something about visibility.

[Antonio]

for example:

function togglebutton1_Callback(hObject, eventdata, handles)
x = inputdlg('Enter space-separated numbers:', 'points', [1 50]);
datax = str2num(x{:});

function togglebutton2_Callback(hObject, eventdata, handles)

how to pass datax value to togglebutton2_Callback (to print datax pushing togglebutton2 for example)?