(MFC) Box.com Download Binary File to Memory

Retrieves the actual data of the file into a memory (not to a local file).

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

See Also: Using MFC CString in Chilkat

#include <CkHttp.h>
#include <CkBinData.h>

void ChilkatSample(void)
    {
    CkString strOut;

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

    CkHttp http;

    //  Provide a previously obtained OAuth2 access token.
    //  See Get Box OAuth2 Access Token.
    http.put_AuthToken("BOX_ACCESS_TOKEN");

    http.put_FollowRedirects(true);

    //  The file is specified by the file ID.
    //  In this case, we're downloading a file with FILE_ID = 283371752129.
    //  The general form of the URL for downloading is: https://api.box.com/2.0/files/FILE_ID/content
    CkBinData bd;
    bool success = http.DownloadBd("https://api.box.com/2.0/files/283371752129/content",bd);
    if (success != true) {
        strOut.append(http.lastErrorText());
        strOut.append("\r\n");
        SetDlgItemText(IDC_EDIT1,strOut.getUnicode());
        return;
    }

    strOut.append("Downloaded tigers.jpeg into an object holding the binary data.");
    strOut.append("\r\n");

    strOut.append("Number of bytes: ");
    strOut.appendInt(bd.get_NumBytes());
    strOut.append("\r\n");


    SetDlgItemText(IDC_EDIT1,strOut.getUnicode());

    }