QNetworkAddressEntry class stores one IP address supported by a network interface, along with its associated netmask and broadcast address. 更多...
| 头： | #include <QNetworkAddressEntry> |
| qmake: | QT += network |
| Since: | Qt 4.2 |
注意： 此类的所有函数 可重入 .
| QNetworkAddressEntry () | |
| QNetworkAddressEntry (const QNetworkAddressEntry & other ) | |
| ~QNetworkAddressEntry () | |
| QHostAddress | broadcast () const |
| QHostAddress | ip () const |
| QHostAddress | netmask () const |
| int | prefixLength () const |
| void | setBroadcast (const QHostAddress & newBroadcast ) |
| void | setIp (const QHostAddress & newIp ) |
| void | setNetmask (const QHostAddress & newNetmask ) |
| void | setPrefixLength (int length ) |
| void | swap (QNetworkAddressEntry & other ) |
| bool | operator!= (const QNetworkAddressEntry & other ) const |
| QNetworkAddressEntry & | operator= (QNetworkAddressEntry && other ) |
| QNetworkAddressEntry & | operator= (const QNetworkAddressEntry & other ) |
| bool | operator== (const QNetworkAddressEntry & other ) const |
QNetworkAddressEntry class stores one IP address supported by a network interface, along with its associated netmask and broadcast address.
每个网络接口可以包含零个或多个 IP 地址，可以依次关联 Netmask (网络掩码) 和/或广播地址 (取决于操作系统是否支持)。
此类表示一个这样的组。
构造空的 QNetworkAddressEntry 对象。
构造 QNetworkAddressEntry object that is a copy of the object other .
销毁此 QNetworkAddressEntry 对象。
Returns the broadcast address associated with the IPv4 address and netmask. It can usually be derived from those two by setting to 1 the bits of the IP address where the netmask contains a 0. (In other words, by bitwise-OR'ing the IP address with the inverse of the netmask)
This member is always empty for IPv6 addresses, since the concept of broadcast has been abandoned in that system in favor of multicast. In particular, the group of hosts corresponding to all the nodes in the local network can be reached by the "all-nodes" special multicast group (address FF02::1).
另请参阅 setBroadcast ().
This function returns one IPv4 or IPv6 address found, that was found in a network interface.
另请参阅 setIp ().
Returns the netmask associated with the IP address. The netmask is expressed in the form of an IP address, such as 255.255.0.0.
For IPv6 addresses, the prefix length is converted to an address where the number of bits set to 1 is equal to the prefix length. For a prefix length of 64 bits (the most common value), the netmask will be expressed as a QHostAddress holding the address FFFF:FFFF:FFFF:FFFF::
另请参阅 setNetmask () 和 prefixLength ().
Returns the prefix length of this IP address. The prefix length matches the number of bits set to 1 in the netmask (see netmask ()). For IPv4 addresses, the value is between 0 and 32. For IPv6 addresses, it's contained between 0 and 128 and is the preferred form of representing addresses.
This function returns -1 if the prefix length could not be determined (i.e., netmask () returns a null QHostAddress()).
该函数在 Qt 4.5 引入。
另请参阅 setPrefixLength () 和 netmask ().
Sets the broadcast IP address of this QNetworkAddressEntry 对象到 newBroadcast .
另请参阅 broadcast ().
Sets the IP address the QNetworkAddressEntry object contains to newIp .
另请参阅 ip ().
Sets the netmask that this QNetworkAddressEntry object contains to newNetmask . Setting the netmask also sets the prefix length to match the new netmask.
另请参阅 netmask () 和 setPrefixLength ().
Sets the prefix length of this IP address to length . The value of length must be valid for this type of IP address: between 0 and 32 for IPv4 addresses, between 0 and 128 for IPv6 addresses. Setting to any invalid value is equivalent to setting to -1, which means "no prefix length".
Setting the prefix length also sets the netmask (see netmask ()).
该函数在 Qt 4.5 引入。
另请参阅 prefixLength () 和 setNetmask ().
Swaps this network address entry instance with other 。此函数非常快，且从不失败。
该函数在 Qt 5.0 引入。
返回
true
若此网络地址条目异于
other
.
移动赋值运算符。
Makes a copy of the QNetworkAddressEntry object other .
返回
true
若此网络地址条目等同
other
.
