Controls this operation. This parameter can be one of the following values.
InternetAutodial to fail if file and printer sharing is disabled for Windows 95 or later.
Windows Server 2008 and Windows Vista: This flag is obsolete.
Forces an online Internet connection.
Forces an unattended Internet dial-up.
Causes InternetAutodial to dial the modem connection even when a network connection to the Internet is present.
Handle to the parent window.
If the function succeeds, it returns TRUE.
If the function fails, it returns FALSE. Applications can call GetLastError to retrieve the error code.
InternetAutodial does not support double-dial connections, SmartCard authentication, or connections that require registry-based certification.
Note Starting on Windows Vista and Windows Server 2008, the WinINet dial-up functions use the RAS functions to establish a dial-up connection. WinINet supports the functionality documented in the RasDialDlg function.
InternetAutodial does not attempt to dial if there is an existing dial-up connection on the system. Also, if there is an existing LAN connection, and InternetAutodial is not configured to force dial (set the INTERNET_AUTODIAL_FORCE_ONLINE in the dwFlags parameter), InternetAutodial does not attempt to dial the connection and returns TRUE.
Like all other aspects of the WinINet API, this function cannot be safely called from within DllMain or the constructors and destructors of global objects.