can not use PSQL driver on windows7 machine

[mak_user]

This is the code for the connection:

bool createPostgreSQLConnection()
{
    qDebug() << "--------------------";
    qDebug() << "Postgree connection";
    QSqlDatabase db = QSqlDatabase::addDatabase("QPSQL7");
    qDebug() << "DRIVERS :" << QSqlDatabase::drivers();
    db.setHostName("127.0.0.1");
    db.setDatabaseName("DatabaseName");
    db.setPassword("Password");
    db.setUserName("UserName");
 
    if (!db.open()) {
       qDebug()<< db.lastError().text();
       return false;
     }
    return true;
}

bool createPostgreSQLConnection()
{
    qDebug() << "--------------------";
    qDebug() << "Postgree connection";
    QSqlDatabase db = QSqlDatabase::addDatabase("QPSQL7");
    qDebug() << "DRIVERS :" << QSqlDatabase::drivers();
    db.setHostName("127.0.0.1");
    db.setDatabaseName("DatabaseName");
    db.setPassword("Password");
    db.setUserName("UserName");

    if (!db.open()) {
       qDebug()<< db.lastError().text();
       return false;
     }
    return true;
}

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This files I got after compilation of plugin:
libqsqlpsql4.a
libqsqlpsqld4.a
qsqlpsql4.dll
qsqlpsqld4.dll

I copied this files in {QTPath}\plugins\sqldrivers and I still get this error:
--------------------
Postgree connection
QSqlDatabase: QPSQL7 driver not loaded
QSqlDatabase: available drivers: QSQLITE QODBC3 QODBC
DRIVERS : ("QSQLITE", "QODBC3", "QODBC")
"Driver not loaded Driver not loaded"

I have no idea what could be the problem.

Earlier today I do the same for ODBC driver(compile, copy in the folder and build application) and everything was working fine.
Could you help me?


Note: I use mingw32-make from QT distribution

[mak_user]

Does anyone work successfully with PostgreSQL under windows7 or should I stop trying?

[Lesiok]

Did You have installed PostgreSQL on Windows 7 ? If not You must copy to app dir PostgreSQL dll's to.

[mak_user]

Sure I have installed PostgreSQL. I can work on the tables with pgAdmin III.
What dll's are you talking about?

---

Added after 4 minutes:

Last thing I did is followed this instruction to build plugins http://www.qtcentre.org/wiki/index.p...ws_using_MinGW. I build plugins successufully again and QPSQL driver is still not loaded.

..\..\..\sql\drivers\psql\qsql_psql.cpp: In member function 'virtual QSqlIndex QPSQLDriver:rimaryIndex(const QString&) const':
..\..\..\sql\drivers\psql\qsql_psql.cpp:979: warning: enumeration value 'VersionUnknown' not handled in switch
..\..\..\sql\drivers\psql\qsql_psql.cpp: In member function 'virtual QSqlRecord QPSQLDriver::record(const QString&) const':
..\..\..\sql\drivers\psql\qsql_psql.cpp:1056: warning: enumeration value 'VersionUnknown' not handled in switch

This are the warnings I got while compileing plugins. I have no idea how to proceed. Maybe you can help me.

[Lesiok]

DLL's from POSTGRESQL_DIR\bin. Plugin use them to connect to server.
PostgreSQL plugin IS working on Windows 7.
We are working with MS Visual C++.