Hi, as said in other thread I am completely new to Qt and UI programming as well.

I've seen some examples and mostly the widgets are put directly in the window class inherited from QMainWindow.
e.g.: window.lineEdit ...

I played around with the creator and it seems like it uses a additional *ui which points to ui_window and accessing those basic widgets is done by window.ui->lineEdit.

Is this *ui specific to applications created with the Creator? Is this some recent concept change? Can the Creator add the widgets directly in the window?

rgds
kk