(MFC) FTP Bandwidth Throttle for Downloads

Demonstrates the Chilkat FTP2 download bandwidth throttling property : BandwidthThrottleDown.

Chilkat C/C++ Library Downloads MS Visual C/C++ Libs

See Also: Using MFC CString in Chilkat

#include <CkFtp2.h>

void ChilkatSample(void)
    {
    CkString strOut;

    // This example requires the Chilkat API to have been previously unlocked.
    // See Global Unlock Sample for sample code.

    CkFtp2 ftp;

    ftp.put_Hostname("ftp.example.com");
    ftp.put_Username("login");
    ftp.put_Password("password");

    // To use FTP bandwidth throttling, set the BandwidthThrottleDown
    // property to a maximum desired bytes/second:
    // This example limits the download to 50K per second.
    ftp.put_BandwidthThrottleDown(50000);

    // The default data transfer mode is "Active" as opposed to "Passive".

    // Connect and login to the FTP server.
    bool success = ftp.Connect();
    if (success != true) {
        strOut.append(ftp.lastErrorText());
        strOut.append("\r\n");
        SetDlgItemText(IDC_EDIT1,strOut.getUnicode());
        return;
    }

    // Change to the remote directory where the file is located.
    // This step is only necessary if the file is not in the root directory
    // for the FTP account.
    success = ftp.ChangeRemoteDir("junk");
    if (success != true) {
        strOut.append(ftp.lastErrorText());
        strOut.append("\r\n");
        SetDlgItemText(IDC_EDIT1,strOut.getUnicode());
        return;
    }

    // Download a file.
    const char *localFilename = "hamlet.xml";
    const char *remoteFilename = "hamlet.xml";

    success = ftp.GetFile(remoteFilename,localFilename);
    if (success != true) {
        strOut.append(ftp.lastErrorText());
        strOut.append("\r\n");
        SetDlgItemText(IDC_EDIT1,strOut.getUnicode());
        return;
    }

    success = ftp.Disconnect();

    strOut.append("File Downloaded!");
    strOut.append("\r\n");


    SetDlgItemText(IDC_EDIT1,strOut.getUnicode());

    }