How to get the value of instance variable
I have the following window , window1,window2,window3.
window2, window3 are inherited from window1. Window1 has an instance variable with value is_flag = 'First Counter" which was set in window1. But when I am using that variable is_flag , in Window2 and Window3 it is getting as null. The value "First Counter" is not getting from window2 and window3.
How I can access the value in Windows2, Windows3 , from WIndow1.