busy progress bar without thread ?

[npc]

It is a big code which is used to collect the system informations.

I called the progress bar in fn() like this

fn()
{
 
fn1();
prgressBar.show();
fn2();
progressBar.show();
 
}

fn()
{

fn1();
prgressBar.show();
fn2();
progressBar.show();

}

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But it doesnt helps me

Thanks,
*npc*