(Unicode C) Download and Save Email Attachments (POP3)

See more POP3 Examples

Downloads emails from a POP3 mailbox and saves all attachments.

Chilkat C/C++ Library Downloads
MS Visual C/C++ Linux/CentOS C/C++ Alpine Linux C/C++ MAC OS X C/C++	armhf/aarch64 C/C++ C++ Builder iOS C/C++ Android C/C++	Solaris C/C++ MinGW C/C++

#include <C_CkMailManW.h>
#include <C_CkEmailBundleW.h>
#include <C_CkEmailW.h>

void ChilkatSample(void)
    {
    HCkMailManW mailman;
    HCkEmailBundleW bundle;
    const wchar_t *dirPath;
    BOOL success;
    int bundleIndex;
    int numMessages;
    HCkEmailW email;
    int numAttachments;
    int attachIndex;

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

    // The mailman object is used for receiving (POP3) 
    // and sending (SMTP) email.
    mailman = CkMailManW_Create();

    // Set the POP3 server's hostname
    CkMailManW_putMailHost(mailman,L"pop.yourserver.com");

    // Set the POP3 login/password.
    CkMailManW_putPopUsername(mailman,L"***");
    CkMailManW_putPopPassword(mailman,L"***");

    // Copy the all email from the user's POP3 mailbox 
    // into a bundle object.  The email remains on the server.
    // CopyMail is a reasonable choice for POP3 maildrops that don't have too many
    // emails. For larger mail drops, one might download emails one at a time..
    bundle = CkMailManW_CopyMail(mailman);
    if (CkMailManW_getLastMethodSuccess(mailman) != TRUE) {
        wprintf(L"%s\n",CkMailManW_lastErrorText(mailman));
        CkMailManW_Dispose(mailman);
        return;
    }

    // The directory path can be relative or absolute.
    // This shows a Windows style directory path.  On other operating systems, the path
    // would be different..
    dirPath = L"c:/myAttachments";

    bundleIndex = 0;
    numMessages = CkEmailBundleW_getMessageCount(bundle);

    while ((bundleIndex < numMessages)) {
        email = CkEmailBundleW_GetEmail(bundle,bundleIndex);

        // Save all attachments to the specified directory.
        // The directory is automatically created if it does not yet exist.
        success = CkEmailW_SaveAllAttachments(email,dirPath);
        if (success != TRUE) {
            wprintf(L"%s\n",CkEmailW_lastErrorText(email));
            CkMailManW_Dispose(mailman);
            return;
        }

        // The OverwriteExisting property controls whether already-existing files
        // are automatically overwritten.  By default, it is set to TRUE so that existing
        // files will be overwritten.

        // Setting OverwriteExisting = FALSE will cause the attachment-saving methods to generate
        // unique filenames if a file with the same name already exists.  The actual filename(s)
        // saved will be present by calling GetAttachmentFilename for each attachment *after*
        // saving.
        // For example...
        CkEmailW_putOverwriteExisting(email,FALSE);
        success = CkEmailW_SaveAllAttachments(email,dirPath);
        if (success != TRUE) {
            wprintf(L"%s\n",CkEmailW_lastErrorText(email));
            CkMailManW_Dispose(mailman);
            return;
        }

        numAttachments = CkEmailW_getNumAttachments(email);
        attachIndex = 0;
        while ((attachIndex < numAttachments)) {
            // If the attachment filename was changed to prevent overwriting,
            // GetAttachmentFilename will return the new filename.
            wprintf(L"%s\n",CkEmailW_getAttachmentFilename(email,attachIndex));
            attachIndex = attachIndex + 1;
        }

        // Attachments can also be saved individually.
        attachIndex = 0;
        while ((attachIndex < numAttachments)) {

            wprintf(L"Original Filename: %s\n",CkEmailW_getAttachmentFilename(email,attachIndex));
            success = CkEmailW_SaveAttachedFile(email,attachIndex,dirPath);
            if (success != TRUE) {
                wprintf(L"%s\n",CkEmailW_lastErrorText(email));
                CkMailManW_Dispose(mailman);
                return;
            }

            // If OverwriteExisting = TRUE, the saved filename will always equal the original filename,
            // unless there are characters present in the filename that are not allowed by Windows,
            // such as * ? < > | etc.  In those cases the illegal characters are either removed or replaced
            // with underscore characters to allow the file to be saved.
            wprintf(L"Saved Filename: %s\n",CkEmailW_getAttachmentFilename(email,attachIndex));
            attachIndex = attachIndex + 1;
        }

        CkEmailW_Dispose(email);

        bundleIndex = bundleIndex + 1;
    }

    CkEmailBundleW_Dispose(bundle);


    CkMailManW_Dispose(mailman);

    }