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QStringList lines;
    QFile file( "file.txt" );
    if ( file.open( IO_ReadOnly ) ) {
        QTextStream stream( &file );
        QString line;
        int i = 1;
        while ( !stream.atEnd() ) {
            line = stream.readLine(); // line of text excluding '\n'
            printf( "%3d: %s\n", i++, line.latin1() );
            lines += line;
        }
        file.close();
    }
    

#include <QtGui>

int main( int argc, char **argv )
{
	QStringList lines; 
    QFile file( "file.txt" ); 
    if ( file.open( QFile::ReadOnly ) ) { 
        QTextStream stream( &file ); 
        QString line; 
        int i = 1; 
        while ( !stream.atEnd() ) { 
            line = stream.readLine(); // line of text excluding '\n' 
            qDebug() << i++ << line; 
            lines += line; 
        } 
        file.close(); 
    }
	return 0;
}