About binary files & streams & buffers...

I know that there is a QT meanly forum but I'm searching for tutorials or examples related to reading-writeing of binary files using streams and buffers.
I dont find nothing really usefull.
Some kind soul can help me ?

Basically I'd want to do :
open the binary file and
read-write a long
read-write a structure
read-write a string
read-write a fixed lenght string
....
and I want to do this individually or using buffers.

Thanks.

This is the correct part of the forum for such questions.
Do you want to do this with qt or just plain C++?
In Qt have a look at the following classes:
QFile, QDataStream

Ja ja ja, Oh my god.
I wrote I know that there is a QT meanly
But I really wanted to write I know that here-this is a QT mainly
Ups. (sorry for my bad english)
Ok, Thanks High_FLyer
First, as I'm learning C++... I'd want to do something with STL, later with QT.
Thanks

STL or C++? :)