qhostaddress.3qt - Man Page

#include <qhostaddress.h>

The QHostAddress class provides an IP address.

This class contains an IP address in a platform and protocol independent manner. It stores both IPv4 and IPv6 addresses in a way that you can easily access on any platform.

QHostAddress is normally used with the classes QSocket, QServerSocket and QSocketDevice to set up a server or to connect to a host.

Host addresses may be set with setAddress() and retrieved with ip4Addr() or toString().

See also QSocket, QServerSocket, QSocketDevice, and Input/Output and Networking.

Creates a host address object with the IP address 0.0.0.0.

Creates a host address object for the IPv4 address ip4Addr.

Creates a host address object with the specified IPv6 address.

ip6Addr must be a 16 byte array in network byte order (high-order byte first).

Creates a host address object with the IPv6 address, ip6Addr.

Creates a copy of address.

Destroys the host address object.

This function is obsolete. It is provided to keep old source working. We strongly advise against using it in new code.

Use toIPv4Address() instead.

Returns TRUE if the host address represents an IPv4 address; otherwise returns FALSE.

Returns TRUE if the host address represents an IPv6 address; otherwise returns FALSE.

This function is obsolete. It is provided to keep old source working. We strongly advise against using it in new code.

Use isIPv4Address() instead.

Returns TRUE if this host address is null (INADDR_ANY or in6addr_any). The default constructor creates a null address, and that address isn't valid for any particular host or interface.

Assigns another host address object address to this object and returns a reference to this object.

Returns TRUE if this host address is the same as other; otherwise returns FALSE.

Set the IPv4 address specified by ip4Addr.

This is an overloaded member function, provided for convenience. It behaves essentially like the above function.

Set the IPv6 address specified by ip6Addr.

ip6Addr must be a 16 byte array in network byte order (high-order byte first).

This is an overloaded member function, provided for convenience. It behaves essentially like the above function.

Sets the IPv4 or IPv6 address specified by the string representation address (e.g. "127.0.0.1"). Returns TRUE and sets the address if the address was successfully parsed; otherwise returns FALSE and leaves the address unchanged.

Returns the IPv4 address as a number.

For example, if the address is 127.0.0.1, the returned value is 2130706433 (i.e. 0x7f000001).

This value is only valid when isIp4Addr() returns TRUE.

See also toString().

Returns the IPv6 address as a Q_IPV6ADDR structure. The structure consists of 16 unsigned characters.

        Q_IPV6ADDR addr = hostAddr.ip6Addr();
        // addr.c[] contains 16 unsigned characters
        for (int i = 0; i < 16; ++i) {
            // process addr.c[i]
        }

This value is only valid when isIPv6Address() returns TRUE.

See also toString().

Returns the address as a string.

For example, if the address is the IPv4 address 127.0.0.1, the returned string is "127.0.0.1".

See also ip4Addr().

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If you find errors in this manual page, please report them to qt-bugs@trolltech.com. Please include the name of the manual page (qhostaddress.3qt) and the Qt version (3.3.8).

The man page QHostAddress.3qt(3) is an alias of qhostaddress.3qt(3).