Use QWidget derived class in Dialog

[qtneuling]

Hello, i have a problem:

i have created a dialog in qt designer and i want a QWidget derived class to be shown there in a box, how can i do that?

[jpn]

Place a QWidget on the form and promote it as your custom widget.

[qtneuling]

thanks, that works great. you really saved my day, have been trying for hours and now its all ok with a few clicks and like 3 lines of code