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POHow do I use QFtp::put to upload a file in Qt C++?
 

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  1. POHow do I use QFtp::put to upload a file in Qt C++?
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    <p>I would like to use QFtp to upload a text file to a FTP server. </p> <p>This is the code I have :</p> <pre><code>QFile *file = new QFile("test.txt"); QFtp *ftp = new QFtp(); if(file-&gt;open(QIODevice::ReadWrite)) { ftp-&gt;setTransferMode(QFtp::Active); ftp-&gt;connectToHost(server); ftp-&gt;login(name, password); ftp-&gt;put(file, "test.txt"); ftp-&gt;close(); } </code></pre> <p>After this code executes, I don't see anything on my ftp server. When I look at the documentation for QFtp::put, I see that the first parameter should be a QIODevice or QByteArray. How should I do this?</p> <p>Edit:<br> So I have this code now:</p> <pre><code>//ftp.cpp QFile *file = new QFile("test.txt"); QFtp *ftp = new QFtp(); this-&gt;connect(ftp, SIGNAL(commandStarted(int)), SLOT(ftpCommandStarted(int))); this-&gt;connect(ftp, SIGNAL(commandFinished(int, bool)), SLOT(ftpCommandFinished(int, bool))); this-&gt;connect(ftp, SIGNAL(done(bool)), SLOT(ftpDone(bool))); this-&gt;connect(ftp, SIGNAL(dataTransferProgress(qint64, qint64)), SLOT(ftpDataTransferProgress(qint64, qint64))); this-&gt;connect(ftp, SIGNAL(stateChanged(int)), SLOT(ftpStateChanged(int))); if(file-&gt;open(QIODevice::ReadWrite)) { ftp-&gt;setTransferMode(QFtp::Active); ftp-&gt;connectToHost(server); ftp-&gt;login(name, password); ftp-&gt;put(file, "test.txt"); ftp-&gt;close(); } </code></pre> <p>with these functions:</p> <pre><code>//ftp.h void ftpCommandStarted(int id); void ftpCommandFinished(int id, bool error); void ftpDone(bool); void ftpDataTransferProgress(qint64, qint64); void ftpStateChanged(int); //ftp.cpp void EmailDialog::ftpCommandStarted(int id) { this-&gt;messageBox("Command Started: " + QString::number(id)); } void EmailDialog::ftpCommandFinished(int id, bool error) { this-&gt;messageBox("Command Finished: " + QString::number(id) + " Error: " + (error ? "Error" : "No Error")); } void EmailDialog::ftpDone(bool error) { this-&gt;messageBox("Done " + QString(error ? "Error" : "No Error")); } void EmailDialog::ftpDataTransferProgress(qint64 done, qint64 total) { this-&gt;messageBox("Done: " + QString::number(done) + " Total: " + QString::number(total)); } void EmailDialog::ftpStateChanged(int state) { QString text; switch (state) { case 0: text = "QFtp::Unconnected"; break; case 1: text = "QFtp::HostLookup"; break; case 2: text = "QFtp::Connecting"; break; case 3: text = "QFtp::Connected"; break; case 4: text = "QFtp::LoggingIn"; break; case 5: text = "QFtp::Closing"; break; default: text = ""; break; } this-&gt;messageBox(text); } </code></pre> <p>However, I don't get any indication that the slots are being called. I don't have any message boxes popping up. What am I doing wrong here?</p>
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    1. USDi Zou
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    1. COMuch better now, but there is too much of the code missing for me to say what's wrong. could you upload it all to github or bitbucket?
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      1. POHow do I use QFtp::put to upload a file in Qt C++?
      1. USJamie Hutton
 

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