DPNHCAPS Structure

Used to set and retrieve parameters for service providers.

Syntax

typedef struct _DPNHCAPS {
    DWORD dwSize;
    DWORD dwFlags;
    DWORD dwNumRegisteredPorts;
    DWORD dwMinLeaseTimeRemaining;
    DWORD dwRecommendedGetCapsInterval;
} DPNHCAPS, *PDPNHCAPS;

Members

dwSize

Size of this structure. Must be filled prior to calling IDirectPlayNATHelp::GetCaps.

dwFlags

Flags indicating capabilities of the Internet gateway server. Possible values are:

DPNHCAPSFLAGS_LOCALFIREWALLPRESENT

At least one network connection has a local firewall present.

DPNHCAPSFLAGS_GATEWAYPRESENT

At least one network connection has an Internet gateway present.

DPNHCAPSFLAGS_GATEWAYISLOCAL

A detected Internet gateway is local.

DPNHCAPSFLAGS_PUBLICADDRESSAVAILABLE

At least one server has a valid public address for registered mappings.

DPNHCAPSFLAGS_NOTALLSUPPORTACTIVENOTIFY

At least one available server does not support an active notification mechanism and must be polled.

dwNumRegisteredPorts

Number of ports currently registered, including multiple ports registered at the same time.

dwMinLeaseTimeRemaining

Time remaining on the lease that will expire first, in milliseconds.

dwRecommendedGetCapsInterval

Recommended time between calls to IDirectPlayNATHelp::GetCaps, in milliseconds.

Structure Information

Header	dpnathlp.h
Minimum operating systems	Windows 98, Pocket PC 2002