Qt SDK

[chethan7845]

Is there any mandatory to use QT sdk while developing Qt project,actually i have been installed qt-vs-addin 1.2.2 and qt-win-opensource 4.8.5 is there any additional packages to install am getting error while compiling my code...

[Rahul Das]

See this "Wiki":http://qt-project.org/wiki/Building_Qt_5_from_Git

[JKSH]

[quote author="chethan7845" date="1384232456"]am getting error while compiling my code...[/quote]Hi, please describe the error and post the error messages. Otherwise, it is hard to help you.

Is this for a new project? If so, I recommend installing "Qt 5.1.1":http://qt-project.org/downloads instead.

[quote author="Rahul Das" date="1384237535"]See this "Wiki":http://qt-project.org/wiki/Building_Qt_5_from_Git[/quote]The OP is asking how to get started with using Qt. That wiki isn't going to help.

[chethan7845]

Am getting this error
The procedure entry point ?deref@QBasicAtomicInt@@QAE_NXZ could not be located in thye dynamic link library Qtcored4.dll

[Rahul Das]

In the wiki, you can find the dependencies Or the additional packages.

It is not mandatory to use the "QtSDK":http://doc.qt.digia.com/sdk-1.2/index.html . For Ex : You can use Qt plugin with IDEs like Eclipse , Or VS, as long as the Qt libs and tools are in place.

[chethan7845]

I have installed Qt 4.8.5 libraries and qt-vs-addin 1.1.11 and visual studio 2008 are these versions compatible ?

[Rahul Das]

4.8.2 and 1.1.11 was released together. I dont know if there is any compatibility issue with 4.8.5

[chethan7845]

Finding fatal errors such as
"fatal error LNK1181: cannot open input file 'qtmaind.lib' "

what might be wrong? any idea?

[Rahul Das]

http://www.qtcentre.org/threads/23917-fatal-error-LNK1181-cannot-open-input-file-qtmaind-lib

[JKSH]

[quote author="chethan7845" date="1384238655"]Am getting this error
The procedure entry point ?deref@QBasicAtomicInt@@QAE_NXZ could not be located in thye dynamic link library Qtcored4.dll

...

Finding fatal errors such as “fatal error LNK1181: cannot open input file ‘qtmaind.lib’ “[/quote]Your DLLs have gotten mixed up.

Do this:

Uninstall all versions of Qt from your computer

Make sure you don't have Qt in your PATH

Make sure you don't have MinGW in your PATH

Go to http://qt-project.org/downloads and download "Qt 5.1.1 for Windows 32-bit (MinGW 4.8, OpenGL, 666 MB)"

[quote author="Rahul Das" date="1384238982"]It is not mandatory to use the "QtSDK":http://doc.qt.digia.com/sdk-1.2/index.html .[/quote]That is the Nokia SDK. It is obsolete. Do not use it.

[chethan7845]

How to retrieve the username and password from database ? i am using postegre sql connection my databse connection is working successfully but am not able to retrieve data please help me
my code is
QSqlDatabase db = QSqlDatabase::addDatabase("QPSQL");
db.setHostName("localhost");
db.setPort(5432);
db.setDatabaseName("chethan");
db.setUserName("postgres");
db.setPassword("**********");

        db.open();

bool ok = db.open();
if(ok != true)
{
QMessageBox Msgbox;
Msgbox.setText("Connnctiopn was be Failed");
Msgbox.exec();

}
else
{
  QMessageBox Msgbox;

Msgbox.setText("connection was successfull");
Msgbox.exec();

         QSqlQueryModel model;

QString qry = QString("select * from login ");
model.setQuery(qry);

newProj = new NewProj();
this->hide();

 newProj->show();

}

[JKSH]

Hi chethan7845,

Please post your question in a new thread. It is completely unrelated to this one.