[Qt-creator] To Open a File and Read It.

[Keiver Hdez Fdez]

 Thank you very much, it work just fine with this. Problem solved.

----- "alan westbrook" <alan.westbrook at nokia.com> wrote:

| The problem you are encountering is that the GUI uses your home
| directory as the working dir when you double click and not the
| application dir.
| 
| You want to prepend QApplication::applicationDirPath() to the filename
| in order to open it from a place relative to the executable.
| 
| Alan
| 
| -----Original Message-----
| From: qt-creator-bounces at trolltech.com
| [mailto:qt-creator-bounces at trolltech.com] On Behalf Of ext Sarah
| Hollings
| Sent: Monday, February 02, 2009 9:24 AM
| To: qt-creator at trolltech.com
| Subject: Re: [Qt-creator] To Open a File and Read It.
| 
| Hmm.
| 
| QFileInfo fi(file);
| qDebug() << fi.absoluteFilePath() << "is readable" <<
| fi.isReadable();
| 
| If that does not reveal anything useful - desperate hack:
|  go to the projects tab, run setting, create a custom executable
| /usr/bin/strace and give the ./<name> of your binary as the argument.
| If the output is too big, add -o myapp.out -ff as arguments before the
| binary name, and grep the outputs for the file name.
| 
| 
| On Mon, Feb 2, 2009 at 8:09 PM, Keiver Hdez Fdez
| <khfernandez at estudiantes.uci.cu> wrote:
| >
| >  Already tried all the three advices, the file.error() function
| return value 0, QFile::NoError.
| > The working directory is the right one. I just checked visually on
| qtcreator and with qDebug().
| >
| > Still with no solutions, inside qtcreator the application works
| fine, but by clicking the executable this does not work.
| >
| > ----- "Sarah Hollings" <sarah.hollings at gmail.com> wrote:
| >
| > | Assuming you're running qtcreator and the terminal as the same
| user,
| > | things to try:
| > |
| > | * Check the run settings on the project tab to see what the
| working
| > | directory is.
| > | * Use file.error() to see what the error condition is (look up
| the
| > | value of the enum here:
| > | http://doc.trolltech.com/4.4/qfile.html#FileError-enum)
| > | * Add some debug:
| > |    qDebug() << "Current working dir:" << QDir::currentPath()
| (You'll
| > | need to add #include <QDebug> and <QDir>)
| > |
| > |
| > | On Mon, Feb 2, 2009 at 6:40 PM, Keiver Hdez Fdez
| > | <khfernandez at estudiantes.uci.cu> wrote:
| > | >
| > | > Hi there;
| > | >
| > | > I'm using Qt Creator in a small application and I need to open
| a
| > | file and read it. The thing is that I have this code:
| > | >
| > | > QFile file("config/exclude_files.exc");
| > | >
| > | > if (!file.open(QIODevice::ReadOnly | QIODevice::Text)) {  ...
| > | > }
| > | >
| > | > If I execute the application by clicking, it does not work and
| if
| > | > I
| > | executed in a terminal it works fine.
| > | >
| > | > Any clues?
| > | >
| > | > Using:
| > | > Qt Creator 0.9.2
| > | > Based on Qt 4.5.0
| > | >
| > | > Built on Jan 27 2009 at 03:49:58
| > | > OS: Debian GNU/Linux
| > | > _______________________________________________
| > | > Qt-creator mailing list
| > | > Qt-creator at trolltech.com
| > | > http://lists.trolltech.com/mailman/listinfo/qt-creator
| > | >
| > | _______________________________________________
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| >
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