QProgressBar in a new window

**tommy** · 13th March 2009, 17:15

Hi,

Whenever my program is doing something that takes a long time, I'd like it to show a progress bar. Every time progress bar is called, I'd like the program to open a new small window on top of the main window and show a progress bar within that window. When the progress bar reaches 100%, I'd like the progress bar window to automatically close.

What is the best way to do this? Is there an easy way or do I need to generate a new widget for that? So far I've done everything with one widget only. How do you share information between two widgets/windows?

I'd be very thankful for any help!

**^NyAw^** · 13th March 2009, 17:24

Hi,

Take a look at QProgessBar
andQProgressDialog

**JimDaniel** · 13th March 2009, 17:24

Check out QProgressDialog. You can also do it yourself by subclassing QDialog, but maybe the built-in class already provides the functionality you need.

To answer your question "how do you share information between two widgets/windows" you need to think about object composition. If your main window object "has-a" dialog object, then you should be able to easily connect signals/slots between them to pass information.