CHttpDownloadDlg v1.03

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Introduction

Welcome to CHttpDownloadDlg, an MFC dialog which performs HTTP downloads similar to the Internet Explorer download dialog as shown above.

History

Usage

Contacting the Author

History

V1.0 (14 November 1999)

• First public release.

V1.01 (15 November 1999)

• Updated documentation to refer to what rc resources are needed by the class.
• Renamed all resources used from ASYNC_DOWLOAD to include HTTPDOWNLOAD.
• Now handles HTTP error 407 (Proxy Authentication) and HTTP error 401 (Server Authentication). You are prompted with a password dialog when either of these forms of authentication are required.
• Sample program now allows you to specify the URL to download from as well as the file to download into and the username and password to connect with.
• The download file is now deleted if the download was aborted or if some other error occurs during the download.
• Parsing of URL will now work where "http://" is not explicitely specified.
• Improved the general look and feel of the demo app and called it "HTML File Downloader".

V1.02 (29 November 1999)

• Fixed a number of compiler warnings and errors when used in VC++ 6.0.

V1.03 (25 January 2000)

• Fixed a problem where server authentication was not being detected correctly, while proxy authentication was being handled.
• Updated the way and periodicity certain UI controls are updated during the HTTP download.

Usage

To use CHttpDownloadDlg in your project simply include HttpDownloadDlg.cpp/.h from the test application in your application and #include "HttpDownloadDlg.h" in whichever files you want to use the class in. To bring up the dialog to download a specific file, just use some code like the following:

CHttpDownloadDlg dlg;
dlg.m_sURLToDownload = _T("http://www.some-site.com/somefile.ext");
dlg.m_sFileToDownloadInto = _T("c:\\somfile.ext");
if (dlg.DoModal() == IDOK)
   AfxMessageBox("File was downloaded successfully");

You should also have a look at the CInetDownloadDlg::OnDownload() code in the sample application.

Contacting the Author

PJ Naughter
Email: pjn@indigo..ie
Web: http://www.naughter.com
25 January 2000