To set "ui->label->setPixmap()" from another Thread then main Thread

Hello,

Can anybody tell me,

is it possible to access "ui->label" object from another thread then Main thread.?

You shouldn't access GUI elements from non GUI threads.
Instead use signals/slots mechanism to share data between threads.

ya that's true,
you can not access the UI members from outside the main GUI thread,
so try to use signal slot mechanism for that ....