How to show dockWidget at specific position in Qt?
===

 ___________________
|            |mov.  |
| Fixed      |dock  |
| dockWidget |widget|
|____________|______| 
| Mov.   |Movable   |
|dockwid.|dockwidget|
|________|__________|


I want to open my Qt application like as shown above. I have four dockwidgets, one is fixed and others are dockable.
How i can do some settings or code to achieve this?

can i use .ini file for default settings and user can also save its settings in .ini file? and how?

Thanks in advance.
Gurmeet