Transparent background in Qt Symbian ?

[Zombieisme]

Hi everyone !
I need help to solve two problems as follows:

1. Is there any way to transparent background of dialog or widget in Qt Symbian. I tried a few examples of transparent, they work well on Windows OS but on Symbian OS is not (the background show with black color)

2. I have a MainWindow showMaximized, then I call a Dialog with showFullScreen (that mean Dialog will be located above the MainWindow). But when I close the Dialog, I see MainWindow in fullscreen and lost control with it. Currently I solved by save / restore Geometry of MainWindow, but is still better solutions or not?

Has anyone encountered similar cases. Please help me solve it.
Thanks a lot !

[danhicksbyron]

What's behind your "dialog or widget"?

As I understand it (and this is relying on vague memory), "showFullScreen" is actually a combination of "show" and a command to set the application (not the widget) into full screen mode. So you need to issue a "showMaximized" (or the separate command, which I don't have at my fingertips) when you close the full screen widget, in order to restore the original widget.

[Zombieisme]

Thank danhicksbyron!

What's behind your "dialog or widget"?

My case as follows:
I have a MainWindow, thenI call my WattingDialog to show above MainWindow. WatingDialog was setWindowModality (Qt:: ApplicationModal) and contains a picture wating.gif. Now I want the background of watingdialog transparent so i can be seen behind MainWindow .