Qt5.2 can find the mysql driver but can not load it

[stereoMatching]

os : win7
compiler : mingw4.8(come with Qt5.2)
link to : Fedora core release 5, kernel 2.6.15-1.2054_FC5 smp on an i686


db = new QSqlDatabase();
db->addDatabase("QMYSQL");
db->setHostName("localhost");
db->setDatabaseName("myclinic");
db->setUserName("root");
db->setPassword(",trth12");

qDebug() << loader.errorString();
qDebug() << "drivers: "<< QSqlDatabase::drivers();

if (db->open())
qDebug() << "Success!";
else
qDebug() << db->lastError().text();


messages

QSqlDatabase: QMYSQL driver not loaded QSqlDatabase: available
drivers: QSQLITE QMYSQL QMYSQL3 QODBC QODBC3 QPSQL QPSQL 7 “The shared
library was not found.” drivers: (“QSQLITE”, “QMYSQL”, “QMYSQL3”,
“QODBC”, “QODBC3”, “QPSQL”, “QPSQL7”)

“Driver not loaded Driver not loaded”

[ChrisW67]

The MySQL runtime library is likely to be absent from your Windows system or not available on the standard PATH. The Qt Mysql driver is dependent on it.

[stereoMatching]

Thanks, I solved the problem.looks like win7 do not come with the dll