how to connect to a microsoft access database?

hello evrybody,
i am writing a program that should connect to a microsoft access
what should i do to connect to such database?
note that i wrote this code:

Code:

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QSqlDatabase db = QSqlDatabase::addDatabase("QODBC");
db.setDatabaseName("DRIVER={Microsoft Access Driver (*.mdb)};FIL={MS Access};DBQ=book.mdb");
if(db.open())
QMessageBox::warning(this, "opened","successful");

---

and every thing works fine and the program is compiled successfully but
when i execute the program the message that indicate to the database is opend does not appear it means that the database can not be opened
should i do some thing to the windows OS or install some thing to let me
connect to ms Access database???
thank you...

i executed this function

Code:

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QSqlDatabase::isDriverAvailable("QODBC")

---

and it returns false
it means that the driver does not exist!!!

See How to Build the ODBC Plugin on Windows.

i built it, thank you i will keep going on my project . i am sure i will face some problems
and i will ask you again .
please be patient with me.
excuse me.