Qt-interest Archive, March 2002
Write at end of File
Message 1 in thread
I have a file with one word of text on each line. I want to open the file and
add a new line of text at the end of the file. How would I do this.
This is the code that I am using to open the file:
QFile filename("myfile");
if(filename.open(IO_ReadWrite) )
{
QTextStream writestring (&filename);
}
algorithmlist.close();
I know the atEnd function shows when the end of the file is reached. How can
I add a new line of text at the end of the file?
Thanks, Mark
Message 2 in thread
If you do it with QFile?
QFile filename("myfile");
filename.open(IO_ReadWrite);
int file_size = filename.size();
if(filename.at(file_size))
{
// write the line
}
Nicolas
-----Original Message-----
From: owner-qt-interest@trolltech.com
[mailto:owner-qt-interest@trolltech.com] On Behalf Of Mark Finlay
Sent: Sonntag, 31. März 2002 15:11
To: qt-interest@trolltech.com
Subject: Write at end of File
I have a file with one word of text on each line. I want to open the
file and
add a new line of text at the end of the file. How would I do this.
This is the code that I am using to open the file:
QFile filename("myfile");
if(filename.open(IO_ReadWrite) )
{
QTextStream writestring (&filename);
}
algorithmlist.close();
I know the atEnd function shows when the end of the file is reached. How
can
I add a new line of text at the end of the file?
Thanks, Mark
--
[ signature omitted ]
Message 3 in thread
Hi,
you should open the file in append mode:
QFile f("myfile");
if (f.open(IO_WriteOnly | IO_Append))
{
QTextStream s(&f);
s << "this text will be appended" << endl;
f.close();
}
Bye,
Bernd
On Sunday 31 March 2002 15:11, Mark Finlay wrote:
> I have a file with one word of text on each line. I want to open the
> file and add a new line of text at the end of the file. How would I do
> this.
Message 4 in thread
Mark Finlay <9839143@student.ul.ie> wrote:
>I have a file with one word of text on each line. I want to open the file and
>add a new line of text at the end of the file. How would I do this.
>
>This is the code that I am using to open the file:
>QFile filename("myfile");
> if(filename.open(IO_ReadWrite) )
> {
> QTextStream writestring (&filename);
> }
>
> algorithmlist.close();
>
>I know the atEnd function shows when the end of the file is reached. How can
>I add a new line of text at the end of the file?
Take at look at IO_Append in the documentation for QFile::open. I think
you'll find that open( IO_ReadWrite | IO_Appand ) provides what you are
looking for.
--
[ signature omitted ]
