# QAbstractSocket Class Reference
## [[QtNetwork](index.htm) module]
该QAbstractSocket类提供通用于所有的套接字类型的基本功能。[More...](#details)
继承[QIODevice](qiodevice.html)。
通过继承[QTcpSocket](qtcpsocket.html)和[QUdpSocket](qudpsocket.html)。
### Types
* `enum NetworkLayerProtocol { IPv4Protocol, IPv6Protocol, UnknownNetworkLayerProtocol }`
* `enum SocketError { ConnectionRefusedError, RemoteHostClosedError, HostNotFoundError, SocketAccessError, ..., UnknownSocketError }`
* `enum SocketOption { LowDelayOption, KeepAliveOption, MulticastTtlOption, MulticastLoopbackOption }`
* `enum SocketState { UnconnectedState, HostLookupState, ConnectingState, ConnectedState, ..., ClosingState }`
* `enum SocketType { TcpSocket, UdpSocket, UnknownSocketType }`
### Methods
* `__init__ (self, SocketType socketType, QObject parent)`
* `abort (self)`
* `bool atEnd (self)`
* `int bytesAvailable (self)`
* `int bytesToWrite (self)`
* `bool canReadLine (self)`
* `close (self)`
* `connectToHost (self, QString hostName, int port, QIODevice.OpenMode mode = QIODevice.ReadWrite)`
* `connectToHost (self, QHostAddress address, int port, QIODevice.OpenMode mode = QIODevice.ReadWrite)`
* `connectToHostImplementation (self, QString hostName, int port, QIODevice.OpenMode mode = QIODevice.ReadWrite)`
* `disconnectFromHost (self)`
* `disconnectFromHostImplementation (self)`
* `SocketError error (self)`
* `bool flush (self)`
* `bool isSequential (self)`
* `bool isValid (self)`
* `QHostAddress localAddress (self)`
* `int localPort (self)`
* `QHostAddress peerAddress (self)`
* `QString peerName (self)`
* `int peerPort (self)`
* `QNetworkProxy proxy (self)`
* `int readBufferSize (self)`
* `str readData (self, int maxlen)`
* `str readLineData (self, int maxlen)`
* `setLocalAddress (self, QHostAddress address)`
* `setLocalPort (self, int port)`
* `setPeerAddress (self, QHostAddress address)`
* `setPeerName (self, QString name)`
* `setPeerPort (self, int port)`
* `setProxy (self, QNetworkProxy networkProxy)`
* `setReadBufferSize (self, int size)`
* `bool setSocketDescriptor (self, int socketDescriptor, SocketState state = QAbstractSocket.ConnectedState, QIODevice.OpenMode mode = QIODevice.ReadWrite)`
* `setSocketError (self, SocketError socketError)`
* `setSocketOption (self, SocketOption option, QVariant value)`
* `setSocketState (self, SocketState state)`
* `int socketDescriptor (self)`
* `QVariant socketOption (self, SocketOption option)`
* `SocketType socketType (self)`
* `SocketState state (self)`
* `bool waitForBytesWritten (self, int msecs = 30000)`
* `bool waitForConnected (self, int msecs = 30000)`
* `bool waitForDisconnected (self, int msecs = 30000)`
* `bool waitForReadyRead (self, int msecs = 30000)`
* `int writeData (self, str data)`
### Qt Signals
* `void connected ()`
* `void disconnected ()`
* `void error (QAbstractSocket::SocketError)`
* `void hostFound ()`
* `void proxyAuthenticationRequired (const QNetworkProxy&,QAuthenticator *)`
* `void stateChanged (QAbstractSocket::SocketState)`
* * *
## Detailed Description
该QAbstractSocket类提供通用于所有的套接字类型的基本功能。
QAbstractSocket为基类[QTcpSocket](qtcpsocket.html)和[QUdpSocket](qudpsocket.html)并包含这两个类的所有常见功能。如果你需要一个插座,你有两种选择:
* Instantiate [QTcpSocket](qtcpsocket.html) or [QUdpSocket](qudpsocket.html).
* Create a native socket descriptor, instantiate QAbstractSocket, and call [setSocketDescriptor](qabstractsocket.html#setSocketDescriptor)() to wrap the native socket.
TCP(传输控制协议)是一种可靠的,面向流的,面向连接的传输协议。 UDP(用户数据报协议)是一种不可靠的,面向数据报的,无连接的协议。在实践中,这意味着TCP是更适合于数据的连续发送,而当可靠性是不重要的,轻量级的UDP都可以使用。
QAbstractSocket的API,最统一的两个协议之间的差异。例如,虽然UDP是无连接的,[connectToHost](qabstractsocket.html#connectToHost)( )建立了UDP套接字的虚拟连接,使您能够在或多或少的相同方式使用QAbstractSocket不管底层协议。在内部, QAbstractSocket记得传递给地址和端口[connectToHost](qabstractsocket.html#connectToHost)() ,和类似的功能[read](qiodevice.html#read)()和[write](qiodevice.html#write)()中使用这些值。
在任何时候, QAbstractSocket具有状态(返回[state](qabstractsocket.html#state)())。初始状态是[UnconnectedState](qabstractsocket.html#SocketState-enum)。后调用[connectToHost](qabstractsocket.html#connectToHost)() ,插座首先进入[HostLookupState](qabstractsocket.html#SocketState-enum)。如果发现主机, QAbstractSocket进入[ConnectingState](qabstractsocket.html#SocketState-enum)和发射[hostFound](qabstractsocket.html#hostFound)()信号。当连接已经建立时,它进入[ConnectedState](qabstractsocket.html#SocketState-enum)并发出[connected](qabstractsocket.html#connected)( ) 。如果发生错误,在任何阶段,[error](qabstractsocket.html#error)()被发射。每当状态发生变化,[stateChanged](qabstractsocket.html#stateChanged)()被发射。为方便起见,[isValid](qabstractsocket.html#isValid)( )返回True如果套接字已准备好进行读取和写入,但请注意,插座的状态必须[ConnectedState](qabstractsocket.html#SocketState-enum)阅读和写作之前可能发生。
通过调用读取或写入数据[read](qiodevice.html#read)()或[write](qiodevice.html#write)( ) ,或者使用的方便功能[readLine](qiodevice.html#readLine)()和[readAll](qiodevice.html#readAll)( ) 。 QAbstractSocket也继承[getChar](qiodevice.html#getChar)( )[putChar](qiodevice.html#putChar)()和[ungetChar](qiodevice.html#ungetChar)( )从[QIODevice](qiodevice.html),其中单字节工作。该[bytesWritten](qiodevice.html#bytesWritten)当数据已经被写入到插座(即,当客户端已读出的数据)( )信号被发射。注意Qt不限制写入缓冲区的大小。您可以通过听这个信号监视它的大小。
该[readyRead](qiodevice.html#readyRead)每一个新的数据块已到达的时间()信号被发射。[bytesAvailable](qabstractsocket.html#bytesAvailable)()然后返回可用于读取的字节数。通常情况下,您将在[readyRead](qiodevice.html#readyRead)()信号到一个槽和阅读有所有可用的数据。如果你不立即读取所有数据,其馀数据仍然可用后,任何新进入的数据将被追加到QAbstractSocket的内部读缓冲区。来限制读缓冲区的大小,调用[setReadBufferSize](qabstractsocket.html#setReadBufferSize)( ) 。
关闭套接字,调用[disconnectFromHost](qabstractsocket.html#disconnectFromHost)( ) 。 QAbstractSocket进入[QAbstractSocket.ClosingState](qabstractsocket.html#SocketState-enum)。在所有挂起的数据已经写入到socket , QAbstractSocket实际上关闭套接字,进入QAbstractSocket.ClosedState ,并发出[disconnected](qabstractsocket.html#disconnected)( ) 。如果您想立即中止连接,丢弃所有未决的数据,调用[abort](qabstractsocket.html#abort)( )来代替。如果远程主机关闭连接, QAbstractSocket会发出错误([QAbstractSocket.RemoteHostClosedError](qabstractsocket.html#SocketError-enum)) ,在此期间,插座状态仍将是[ConnectedState](qabstractsocket.html#SocketState-enum),然后在[disconnected](qabstractsocket.html#disconnected)()信号将被发射。
所连接的对端的端口和地址是通过调用取[peerPort](qabstractsocket.html#peerPort)()和[peerAddress](qabstractsocket.html#peerAddress)( ) 。[peerName](qabstractsocket.html#peerName)()返回对端的主机名,它被传递到[connectToHost](qabstractsocket.html#connectToHost)( ) 。[localPort](qabstractsocket.html#localPort)()和[localAddress](qabstractsocket.html#localAddress)( )返回本地套接字的端口和地址。
QAbstractSocket提供了一组挂起调用线程,直到某个信号发射的功能。这些功能可以用来实现阻塞套接字:
* [waitForConnected](qabstractsocket.html#waitForConnected)() blocks until a connection has been established.
* [waitForReadyRead](qabstractsocket.html#waitForReadyRead)() blocks until new data is available for reading.
* [waitForBytesWritten](qabstractsocket.html#waitForBytesWritten)() blocks until one payload of data has been written to the socket.
* [waitForDisconnected](qabstractsocket.html#waitForDisconnected)() blocks until the connection has closed.
我们显示一个例子:
```
int numRead = 0, numReadTotal = 0;
char buffer[50];
forever {
numRead = socket.read(buffer, 50);
// do whatever with array
numReadTotal += numRead;
if (numRead == 0 && !socket.waitForReadyRead())
break;
}
```
If [waitForReadyRead()](qiodevice.html#waitForReadyRead)返回False ,该连接已关闭或发生错误。
与阻塞套接字编程是一个非阻塞套接字编程完全不同。阻塞套接字并不需要一个事件循环,并通常会导致简单的代码。然而,在一个图形用户界面的应用程序,阻塞插座只应在非GUI线程使用,以避免冻结的用户界面。请参阅[network/fortuneclient](index.htm)和[network/blockingfortuneclient](index.htm)举例而言,两种方法的概述。
**Note:**我们不鼓励使用的阻塞函数信号一起。应该使用其中的两种可能性。
QAbstractSocket可以被用于[QTextStream](qtextstream.html)和[QDataStream](qdatastream.html)的流运算符(运算符\u003c\u003c ()和operator \u003e\u003e ( ) ) 。有一个问题需要注意,虽然:你必须确保有足够的数据可用尝试使用运算符来读取它之前\u003e\u003e ( ) 。
* * *
## Type Documentation
```
QAbstractSocket.NetworkLayerProtocol
```
这个枚举变量描述的Qt使用的网络层协议的值。
| Constant | Value | Description |
| --- | --- | --- |
| `QAbstractSocket.IPv4Protocol` | `0` | IPv4的 |
| `QAbstractSocket.IPv6Protocol` | `1` | IPv6的 |
| `QAbstractSocket.UnknownNetworkLayerProtocol` | `-1` | 除IPv4和IPv6 |
**See also** [QHostAddress.protocol](qhostaddress.html#protocol)( ) 。
```
QAbstractSocket.SocketError
```
这个枚举说明可能发生的套接字错误。
| Constant | Value | Description |
| --- | --- | --- |
| `QAbstractSocket.ConnectionRefusedError` | `0` | 连接被对等(或超时)拒绝。 |
| `QAbstractSocket.RemoteHostClosedError` | `1` | 远程主机关闭了连接。请注意,客户端套接字(也就是该套接字)远程关闭通知发出后将会关闭。 |
| `QAbstractSocket.HostNotFoundError` | `2` | 主机地址未找到。 |
| `QAbstractSocket.SocketAccessError` | `3` | 套接字操作失败,因为该应用程序缺乏必要的特权。 |
| `QAbstractSocket.SocketResourceError` | `4` | 本地系统跑出来的资源(例如,太多的套接字)的。 |
| `QAbstractSocket.SocketTimeoutError` | `5` | 套接字操作超时。 |
| `QAbstractSocket.DatagramTooLargeError` | `6` | 数据报比操作系统的限制(其可以是低至8192字节)大。 |
| `QAbstractSocket.NetworkError` | `7` | 与网络(例如,网络电缆被意外拔出)时发生错误。 |
| `QAbstractSocket.AddressInUseError` | `8` | 指定的地址[QUdpSocket.bind](qudpsocket.html#bind)()已经在使用中并且被设置为独占的。 |
| `QAbstractSocket.SocketAddressNotAvailableError` | `9` | 指定的地址[QUdpSocket.bind](qudpsocket.html#bind)( )不属于主机。 |
| `QAbstractSocket.UnsupportedSocketOperationError` | `10` | 不是由本地操作系统(例如,缺乏支持IPv6 )的支持请求的套接字操作。 |
| `QAbstractSocket.ProxyAuthenticationRequiredError` | `12` | 该插座是使用代理,而代理服务器需要身份验证。 |
| `QAbstractSocket.SslHandshakeFailedError` | `13` | 在SSL / TLS握手失败,因此连接已关闭(仅在使用[QSslSocket](qsslsocket.html)) (此值被引入4.4 。 ) |
| `QAbstractSocket.UnfinishedSocketOperationError` | `11` | 使用QAbstractSocketEngine只,最后的操作尝试尚未完成(仍然在后台进程) 。 (这个值被引入4.4 。 ) |
| `QAbstractSocket.ProxyConnectionRefusedError` | `14` | 无法联系的代理服务器,因为连接到该服务器被拒绝(这个值被引入4.5 。 ) |
| `QAbstractSocket.ProxyConnectionClosedError` | `15` | 到代理服务器的连接意外被关闭(连接到最终的同行建立之前) (此值是在4.5推出。 ) |
| `QAbstractSocket.ProxyConnectionTimeoutError` | `16` | 到代理服务器的连接超时或代理服务器停在认证阶段响应。 (这个值被引入4.5 。 ) |
| `QAbstractSocket.ProxyNotFoundError` | `17` | 设置代理地址[setProxy](qabstractsocket.html#setProxy)( ) (或应用程序代理)未找到。 (这个值被引入4.5 。 ) |
| `QAbstractSocket.ProxyProtocolError` | `18` | 在连接协商与代理服务器,因为从代理服务器的响应无法被理解。 (这个值被引入4.5 。 ) |
| `QAbstractSocket.UnknownSocketError` | `-1` | 发生不明的错误。 |
**See also** [QAbstractSocket.error](qabstractsocket.html#error)( ) 。
```
QAbstractSocket.SocketOption
```
这个枚举表示可以在一个插座可以设置的选项。如果需要的话,它们可以在接收之后进行设置[connected](qabstractsocket.html#connected)()从插座或收到一个新的套接字从后信号[QTcpServer](qtcpserver.html)。
| Constant | Value | Description |
| --- | --- | --- |
| `QAbstractSocket.LowDelayOption` | `0` | 尝试优化插座低延迟。对于[QTcpSocket](qtcpsocket.html)这将设置TCP_NODELAY选项,并禁用Nagle算法。将此值设置为1来启用。 |
| `QAbstractSocket.KeepAliveOption` | `1` | 将此值设置为1,以启用SO_KEEPALIVE套接字选项 |
| `QAbstractSocket.MulticastTtlOption` | `2` | 将其设置为一个整数值来设置IP_MULTICAST_TTL (TTL组播数据报)套接字选项。 |
| `QAbstractSocket.MulticastLoopbackOption` | `3` | 将此值设置为1 ,使IP_MULTICAST_LOOP (多播环回)套接字选项。 |
这个枚举被引入或修改的Qt 4.6 。
**See also** [QAbstractSocket.setSocketOption](qabstractsocket.html#setSocketOption)()和[QAbstractSocket.socketOption](qabstractsocket.html#socketOption)( ) 。
```
QAbstractSocket.SocketState
```
这个枚举变量描述了不同的状态,其中一个插座即可。
| Constant | Value | Description |
| --- | --- | --- |
| `QAbstractSocket.UnconnectedState` | `0` | 该套接字没有连接。 |
| `QAbstractSocket.HostLookupState` | `1` | 该插座是执行主机名查找。 |
| `QAbstractSocket.ConnectingState` | `2` | 插座已经开始建立连接。 |
| `QAbstractSocket.ConnectedState` | `3` | 连接建立。 |
| `QAbstractSocket.BoundState` | `4` | 套接字绑定到一个地址和端口(用于服务器) 。 |
| `QAbstractSocket.ClosingState` | `6` | 该插座是即将关闭(数据仍可能等待写入) 。 |
| `QAbstractSocket.ListeningState` | `5` | 仅供内部使用。 |
**See also** [QAbstractSocket.state](qabstractsocket.html#state)( ) 。
```
QAbstractSocket.SocketType
```
这个枚举变量描述传输层协议。
| Constant | Value | Description |
| --- | --- | --- |
| `QAbstractSocket.TcpSocket` | `0` | TCP |
| `QAbstractSocket.UdpSocket` | `1` | UDP |
| `QAbstractSocket.UnknownSocketType` | `-1` | 除了TCP和UDP |
**See also** [QAbstractSocket.socketType](qabstractsocket.html#socketType)( ) 。
* * *
## Method Documentation
```
QAbstractSocket.__init__ (self, SocketType socketType, QObject parent)
```
该_parent_的说法,如果不是没有,原因_self_通过Qt的,而不是PyQt的拥有。
创建类型的新抽象插座_socketType_。该_parent_参数被传递给[QObject](qobject.html)的构造。
**See also** [socketType](qabstractsocket.html#socketType)( )[QTcpSocket](qtcpsocket.html)和[QUdpSocket](qudpsocket.html)。
```
QAbstractSocket.abort (self)
```
中止当前连接并重置插口。不像[disconnectFromHost](qabstractsocket.html#disconnectFromHost)( ) ,这个函数立即关闭套接字,丢弃在写缓冲区任何挂起的数据。
**See also** [disconnectFromHost](qabstractsocket.html#disconnectFromHost)()和[close](qabstractsocket.html#close)( ) 。
```
bool QAbstractSocket.atEnd (self)
```
从重新实现[QIODevice.atEnd](qiodevice.html#atEnd)( ) 。
如果没有更多的数据,目前可供读取,则返回True ,否则返回False 。
读数从插座在一个循环中的数据时,此功能是最常用的。例如:
```
// This slot is connected to QAbstractSocket.readyRead()
void SocketClass.readyReadSlot()
{
while (!socket.atEnd()) {
[QByteArray](qbytearray.html) data = socket.read(100);
....
}
}
```
**See also** [bytesAvailable](qabstractsocket.html#bytesAvailable)()和[readyRead](qiodevice.html#readyRead)( ) 。
```
int QAbstractSocket.bytesAvailable (self)
```
从重新实现[QIODevice.bytesAvailable](qiodevice.html#bytesAvailable)( ) 。
返回传入的字节正在等待被读取的次数。
**See also** [bytesToWrite](qabstractsocket.html#bytesToWrite)()和[read](qiodevice.html#read)( ) 。
```
int QAbstractSocket.bytesToWrite (self)
```
从重新实现[QIODevice.bytesToWrite](qiodevice.html#bytesToWrite)( ) 。
返回正在等待被写入的字节数。该字节被写入时,控制返回到事件循环或当[flush](qabstractsocket.html#flush)()被调用。
**See also** [bytesAvailable](qabstractsocket.html#bytesAvailable)()和[flush](qabstractsocket.html#flush)( ) 。
```
bool QAbstractSocket.canReadLine (self)
```
从重新实现[QIODevice.canReadLine](qiodevice.html#canReadLine)( ) 。
返回True如果一行数据可以从套接字读取,否则返回False 。
**See also** [readLine](qiodevice.html#readLine)( ) 。
```
QAbstractSocket.close (self)
```
从重新实现[QIODevice.close](qiodevice.html#close)( ) 。
关闭套接字的I / O设备,断开与主机插座的连接,关闭套接字,并重置姓名,地址,端口号和底层套接字描述符。
See [QIODevice.close](qiodevice.html#close)( ),用于当一个I / O设备被关闭时发生的动作的说明。
**See also** [abort](qabstractsocket.html#abort)( ) 。
```
QAbstractSocket.connectToHost (self, QString hostName, int port, QIODevice.OpenMode mode = QIODevice.ReadWrite)
```
企图使一个连接_hostName_在给定的_port_。
该插座是在给定的开_openMode_并首次进入[HostLookupState](qabstractsocket.html#SocketState-enum),然后执行一个主机名查找_hostName_。如果查找成功,[hostFound](qabstractsocket.html#hostFound)()被发射和[QAbstractSocket](qabstractsocket.html)进入[ConnectingState](qabstractsocket.html#SocketState-enum)。然后,它尝试连接到由查询返回的地址或地址。最后,如果建立了连接,[QAbstractSocket](qabstractsocket.html)进入[ConnectedState](qabstractsocket.html#SocketState-enum)并发出[connected](qabstractsocket.html#connected)( ) 。
在任何点,该插座能发射[error](qabstractsocket.html#error)()来通知发生了错误。
_hostName_可以是字符串形式(例如,“ 43.195.83.32 ” )的IP地址,也可以是主机名(例如,“ example.com ” ) 。[QAbstractSocket](qabstractsocket.html)会做只有当需要查找。_port_是在本地字节顺序。
**See also** [state](qabstractsocket.html#state)( )[peerName](qabstractsocket.html#peerName)( )[peerAddress](qabstractsocket.html#peerAddress)( )[peerPort](qabstractsocket.html#peerPort)()和[waitForConnected](qabstractsocket.html#waitForConnected)( ) 。
```
QAbstractSocket.connectToHost (self, QHostAddress address, int port, QIODevice.OpenMode mode = QIODevice.ReadWrite)
```
这是一个重载函数。
企图使一个连接_address_端口_port_。
```
QAbstractSocket.connectToHostImplementation (self, QString hostName, int port, QIODevice.OpenMode mode = QIODevice.ReadWrite)
```
这种方法也是一个Qt槽与C + +的签名`void connectToHostImplementation(const QString&,quint16,QIODevice::OpenMode = QIODevice.ReadWrite)`。
包含的实施[connectToHost](qabstractsocket.html#connectToHost)( ) 。
企图使一个连接_hostName_在给定的_port_。该插座是在给定的开_openMode_。
这个函数是Qt 4.1中引入。
```
QAbstractSocket.disconnectFromHost (self)
```
试图关闭套接字。如果有挂起的数据等待写入,[QAbstractSocket](qabstractsocket.html)将进入[ClosingState](qabstractsocket.html#SocketState-enum)并等待,直到所有数据已经写入。最终,将进入[UnconnectedState](qabstractsocket.html#SocketState-enum)和发射[disconnected](qabstractsocket.html#disconnected)()信号。
**See also** [connectToHost](qabstractsocket.html#connectToHost)( ) 。
```
QAbstractSocket.disconnectFromHostImplementation (self)
```
这种方法也是一个Qt槽与C + +的签名`void disconnectFromHostImplementation()`。
包含的实施[disconnectFromHost](qabstractsocket.html#disconnectFromHost)( ) 。
这个函数是Qt 4.1中引入。
```
SocketError QAbstractSocket.error (self)
```
[
返回上次发生错误的类型。
](qabstractsocket.html#SocketError-enum)
[**See also**](qabstractsocket.html#SocketError-enum) [state](qabstractsocket.html#state)()和[errorString](qiodevice.html#errorString)( ) 。
```
bool QAbstractSocket.flush (self)
```
该函数将尽可能从内部写缓冲区的底层网络接口,而不会阻塞。如果任何数据被写入时,该函数将返回True,否则返回False。
调用此函数,如果你需要[QAbstractSocket](qabstractsocket.html)立即开始发送缓冲数据。成功写入的字节数依赖于操作系统。在大多数情况下,你不需要调用这个函数,因为[QAbstractSocket](qabstractsocket.html)将自动开始发送数据,一旦控制返回到事件循环。在不存在的事件循环,调用[waitForBytesWritten](qabstractsocket.html#waitForBytesWritten)( )来代替。
**See also** [write](qiodevice.html#write)()和[waitForBytesWritten](qabstractsocket.html#waitForBytesWritten)( ) 。
```
bool QAbstractSocket.isSequential (self)
```
从重新实现[QIODevice.isSequential](qiodevice.html#isSequential)( ) 。
```
bool QAbstractSocket.isValid (self)
```
返回True如果套接字是有效的,并准备使用,否则返回False 。
**Note:**套接字的状态必须[ConnectedState](qabstractsocket.html#SocketState-enum)阅读和写作之前可能发生。
**See also** [state](qabstractsocket.html#state)( ) 。
```
QHostAddress QAbstractSocket.localAddress (self)
```
[](qhostaddress.html)
[返回本地套接字如果可用的主机地址,否则返回](qhostaddress.html)[QHostAddress.Null](qhostaddress.html#SpecialAddress-enum)。
这通常是在主机的主IP地址,但也可以是[QHostAddress.LocalHost](qhostaddress.html#SpecialAddress-enum)( 127.0.0.1)来连接到本地主机。
**See also** [localPort](qabstractsocket.html#localPort)( )[peerAddress](qabstractsocket.html#peerAddress)()和[setLocalAddress](qabstractsocket.html#setLocalAddress)( ) 。
```
int QAbstractSocket.localPort (self)
```
返回本地套接字如果可用的主机端口号(本地字节顺序) ,否则返回0 。
**See also** [localAddress](qabstractsocket.html#localAddress)( )[peerPort](qabstractsocket.html#peerPort)()和[setLocalPort](qabstractsocket.html#setLocalPort)( ) 。
```
QHostAddress QAbstractSocket.peerAddress (self)
```
[](qhostaddress.html)
[返回所连接的对端的地址,如果套接字是在](qhostaddress.html)[ConnectedState](qabstractsocket.html#SocketState-enum)否则返回[QHostAddress.Null](qhostaddress.html#SpecialAddress-enum)。
**See also** [peerName](qabstractsocket.html#peerName)( )[peerPort](qabstractsocket.html#peerPort)( )[localAddress](qabstractsocket.html#localAddress)()和[setPeerAddress](qabstractsocket.html#setPeerAddress)( ) 。
```
QString QAbstractSocket.peerName (self)
```
所指定的返回对端的名称[connectToHost](qabstractsocket.html#connectToHost)( ) ,或空[QString](qstring.html)如果[connectToHost](qabstractsocket.html#connectToHost)( )尚未被调用。
**See also** [peerAddress](qabstractsocket.html#peerAddress)( )[peerPort](qabstractsocket.html#peerPort)()和[setPeerName](qabstractsocket.html#setPeerName)( ) 。
```
int QAbstractSocket.peerPort (self)
```
返回所连接的对端的端口,如果套接字是在[ConnectedState](qabstractsocket.html#SocketState-enum)否则返回0 。
**See also** [peerAddress](qabstractsocket.html#peerAddress)( )[localPort](qabstractsocket.html#localPort)()和[setPeerPort](qabstractsocket.html#setPeerPort)( ) 。
```
QNetworkProxy QAbstractSocket.proxy (self)
```
[](qnetworkproxy.html)
[返回此套接字的网络代理。默认情况下,](qnetworkproxy.html)[QNetworkProxy.DefaultProxy](qnetworkproxy.html#ProxyType-enum)被使用,这意味着该套接字将查询应用程序的默认代理设置。
这个函数是Qt 4.1中引入。
**See also** [setProxy](qabstractsocket.html#setProxy)( )[QNetworkProxy](qnetworkproxy.html)和[QNetworkProxyFactory](qnetworkproxyfactory.html)。
```
int QAbstractSocket.readBufferSize (self)
```
返回内部读缓冲区的大小。这限制了数据的客户端可以在打电话之前收取的金额[read](qiodevice.html#read)()或[readAll](qiodevice.html#readAll)( ) 。
0读缓冲区的大小(默认值)意味着缓冲区有没有大小限制,以确保数据不会丢失。
**See also** [setReadBufferSize](qabstractsocket.html#setReadBufferSize)()和[read](qiodevice.html#read)( ) 。
```
str QAbstractSocket.readData (self, int maxlen)
```
从重新实现[QIODevice.readData](qiodevice.html#readData)( ) 。
```
str QAbstractSocket.readLineData (self, int maxlen)
```
从重新实现[QIODevice.readLineData](qiodevice.html#readLineData)( ) 。
```
QAbstractSocket.setLocalAddress (self, QHostAddress address)
```
设置到一个连接的本地端的地址_address_。
您可以在子类中调用这个函数[QAbstractSocket](qabstractsocket.html)改变的返回值[localAddress](qabstractsocket.html#localAddress)连接后()函数已经建立。此功能是常用的代理服务器连接虚拟连接设置。
请注意,此功能对套接字的本地地址的连接(例如,之前没有绑定,[QUdpSocket.bind](qudpsocket.html#bind)())。
这个函数是Qt 4.1中引入。
**See also** [localAddress](qabstractsocket.html#localAddress)( )[setLocalPort](qabstractsocket.html#setLocalPort)()和[setPeerAddress](qabstractsocket.html#setPeerAddress)( ) 。
```
QAbstractSocket.setLocalPort (self, int port)
```
设置端口上连接的本地端_port_。
您可以在子类中调用这个函数[QAbstractSocket](qabstractsocket.html)改变的返回值[localPort](qabstractsocket.html#localPort)连接后()函数已经建立。此功能是常用的代理服务器连接虚拟连接设置。
请注意,这个函数不套接字的本地端口绑定的连接(如前,[QUdpSocket.bind](qudpsocket.html#bind)())。
这个函数是Qt 4.1中引入。
**See also** [localPort](qabstractsocket.html#localPort)( )[localAddress](qabstractsocket.html#localAddress)( )[setLocalAddress](qabstractsocket.html#setLocalAddress)()和[setPeerPort](qabstractsocket.html#setPeerPort)( ) 。
```
QAbstractSocket.setPeerAddress (self, QHostAddress address)
```
设置连接到的远程端的地址_address_。
您可以在子类中调用这个函数[QAbstractSocket](qabstractsocket.html)改变的返回值[peerAddress](qabstractsocket.html#peerAddress)连接后()函数已经建立。此功能是常用的代理服务器连接虚拟连接设置。
这个函数是Qt 4.1中引入。
**See also** [peerAddress](qabstractsocket.html#peerAddress)( )[setPeerPort](qabstractsocket.html#setPeerPort)()和[setLocalAddress](qabstractsocket.html#setLocalAddress)( ) 。
```
QAbstractSocket.setPeerName (self, QString name)
```
设置远端的主机名_name_。
您可以在子类中调用这个函数[QAbstractSocket](qabstractsocket.html)改变的返回值[peerName](qabstractsocket.html#peerName)连接后()函数已经建立。此功能是常用的代理服务器连接虚拟连接设置。
这个函数是Qt 4.1中引入。
**See also** [peerName](qabstractsocket.html#peerName)( ) 。
```
QAbstractSocket.setPeerPort (self, int port)
```
设置连接到的远程端的端口_port_。
您可以在子类中调用这个函数[QAbstractSocket](qabstractsocket.html)改变的返回值[peerPort](qabstractsocket.html#peerPort)连接后()函数已经建立。此功能是常用的代理服务器连接虚拟连接设置。
这个函数是Qt 4.1中引入。
**See also** [peerPort](qabstractsocket.html#peerPort)( )[setPeerAddress](qabstractsocket.html#setPeerAddress)()和[setLocalPort](qabstractsocket.html#setLocalPort)( ) 。
```
QAbstractSocket.setProxy (self, QNetworkProxy networkProxy)
```
设置此套接字明确网络代理_networkProxy_。
要禁用使用代理的这个插座,使用[QNetworkProxy.NoProxy](qnetworkproxy.html#ProxyType-enum)代理类型:
```
socket->setProxy([QNetworkProxy](qnetworkproxy.html).NoProxy);
```
对于代理的默认值是[QNetworkProxy.DefaultProxy](qnetworkproxy.html#ProxyType-enum),这意味着套接字将使用应用程序设置:如果将代理设置QNetworkProxy.setApplicationProxy ,它将使用,否则,如果一个工厂设置QNetworkProxyFactory.setApplicationProxyFactory ,它会查询该工厂类型[QNetworkProxyQuery.TcpSocket](qnetworkproxyquery.html#QueryType-enum)。
这个函数是Qt 4.1中引入。
**See also** [proxy](qabstractsocket.html#proxy)( )[QNetworkProxy](qnetworkproxy.html)和[QNetworkProxyFactory.queryProxy](qnetworkproxyfactory.html#queryProxy)( ) 。
```
QAbstractSocket.setReadBufferSize (self, int size)
```
载的大小[QAbstractSocket](qabstractsocket.html)的内部读缓冲区是_size_字节。
如果缓冲区大小被限制为一定的大小,[QAbstractSocket](qabstractsocket.html)将不缓存数据超过此大小。特殊情况下,为0的缓冲区大小意味着读缓存器是无限的,所有输入的数据进行缓冲。这是默认的。
此选项很有用,如果你只在读取特定时间点的数据(例如,在实时流应用程序),或者如果你想保护你的插座对接收的数据过多,最终可能导致应用程序用完内存。
只[QTcpSocket](qtcpsocket.html) uses [QAbstractSocket](qabstractsocket.html)的内部缓冲区;[QUdpSocket](qudpsocket.html)不使用任何缓冲在所有的,而是依赖于由操作系统提供的隐式缓冲。正因为如此,调用这个函数上[QUdpSocket](qudpsocket.html)没有任何影响。
**See also** [readBufferSize](qabstractsocket.html#readBufferSize)()和[read](qiodevice.html#read)( ) 。
```
bool QAbstractSocket.setSocketDescriptor (self, int socketDescriptor, SocketState state = QAbstractSocket.ConnectedState, QIODevice.OpenMode mode = QIODevice.ReadWrite)
```
初始化[QAbstractSocket](qabstractsocket.html)与本地套接字描述符_socketDescriptor_。返回True如果_socketDescriptor_被接受为有效的套接字描述符,否则返回False 。该插座是由指定的模式打开_openMode_,并进入由指定的套接字状态_socketState_。
**Note:**这是不可能的初始化两个抽象插座,相同的本地套接字描述符。
**See also** [socketDescriptor](qabstractsocket.html#socketDescriptor)( ) 。
```
QAbstractSocket.setSocketError (self, SocketError socketError)
```
设置最后对发生错误的类型_socketError_。
**See also** [setSocketState](qabstractsocket.html#setSocketState)()和[setErrorString](qiodevice.html#setErrorString)( ) 。
```
QAbstractSocket.setSocketOption (self, SocketOption option, QVariant value)
```
设置给定_option_由所描述的值_value_。
此功能被引入Qt的4.6 。
**See also** [socketOption](qabstractsocket.html#socketOption)( ) 。
```
QAbstractSocket.setSocketState (self, SocketState state)
```
设置套接字的状态,以_state_。
**See also** [state](qabstractsocket.html#state)( ) 。
```
int QAbstractSocket.socketDescriptor (self)
```
返回的本地套接字描述符[QAbstractSocket](qabstractsocket.html)如果对象是可用的,否则返回-1 。
如果套接字使用[QNetworkProxy](qnetworkproxy.html),返回的描述符可能无法与原生socket函数使用。
套接字描述符时,无法使用[QAbstractSocket](qabstractsocket.html)在[UnconnectedState](qabstractsocket.html#SocketState-enum)。
**See also** [setSocketDescriptor](qabstractsocket.html#setSocketDescriptor)( ) 。
```
QVariant QAbstractSocket.socketOption (self, SocketOption option)
```
返回的值_option_选项。
此功能被引入Qt的4.6 。
**See also** [setSocketOption](qabstractsocket.html#setSocketOption)( ) 。
```
SocketType QAbstractSocket.socketType (self)
```
[
返回套接字的类型( TCP,UDP或其他) 。
](qabstractsocket.html#SocketType-enum)
[**See also**](qabstractsocket.html#SocketType-enum) [QTcpSocket](qtcpsocket.html)和[QUdpSocket](qudpsocket.html)。
```
SocketState QAbstractSocket.state (self)
```
[
返回套接字的状态。
](qabstractsocket.html#SocketState-enum)
[**See also**](qabstractsocket.html#SocketState-enum) [error](qabstractsocket.html#error)( ) 。
```
bool QAbstractSocket.waitForBytesWritten (self, int msecs = 30000)
```
从重新实现[QIODevice.waitForBytesWritten](qiodevice.html#waitForBytesWritten)( ) 。
```
bool QAbstractSocket.waitForConnected (self, int msecs = 30000)
```
等待,直到套接字连接,高达_msecs_毫秒。如果连接已经建立,该函数将返回True,否则返回False 。当它返回False的情况下,你可以调用[error](qabstractsocket.html#error)()来确定错误的原因。
下面的例子最多等待1秒,以建立连接:
```
socket->connectToHost("imap", 143);
if (socket->waitForConnected(1000))
qDebug("Connected!");
```
如果毫秒为-1 ,此功能将不会超时。
**Note:**此功能可能稍长比等待_msecs_取决于所花费的时间来完成主机查找。
**Note:**多次调用该函数不累积的时间。如果函数超时,连接过程将被中止。
**See also** [connectToHost](qabstractsocket.html#connectToHost)()和[connected](qabstractsocket.html#connected)( ) 。
```
bool QAbstractSocket.waitForDisconnected (self, int msecs = 30000)
```
等待,直到插座断开连接,直至_msecs_毫秒。如果连接已经断开,则该函数返回True,否则返回False 。当它返回False的情况下,你可以调用[error](qabstractsocket.html#error)()来确定错误的原因。
下面的例子最多等待一秒钟的连接被关闭:
```
socket->disconnectFromHost();
if (socket->state() == [QAbstractSocket](qabstractsocket.html).UnconnectedState ||
socket->waitForDisconnected(1000))
qDebug("Disconnected!");
```
如果毫秒为-1 ,此功能将不会超时。
**See also** [disconnectFromHost](qabstractsocket.html#disconnectFromHost)()和[close](qabstractsocket.html#close)( ) 。
```
bool QAbstractSocket.waitForReadyRead (self, int msecs = 30000)
```
从重新实现[QIODevice.waitForReadyRead](qiodevice.html#waitForReadyRead)( ) 。
此功能块,直到新的数据可供读取和[readyRead()](qiodevice.html#readyRead)信号已经发出。之后,该函数将超时_msecs_毫秒,默认的超时时间为30000毫秒。
该函数返回True,如果[readyRead](qiodevice.html#readyRead)( )信号被发射,并有可供读取新数据,否则返回False (如果发生错误或者操作超时) 。
**See also** [waitForBytesWritten](qabstractsocket.html#waitForBytesWritten)( ) 。
```
int QAbstractSocket.writeData (self, str data)
```
从重新实现[QIODevice.writeData](qiodevice.html#writeData)( ) 。
* * *
## Qt Signal Documentation
```
void connected ()
```
这是该信号的默认超载。
之后此信号被发射[connectToHost](qabstractsocket.html#connectToHost)( )被调用,并连接已成功建立。
**Note:**在一些操作系统上的连接()信号可以直接从所发射的[connectToHost](qabstractsocket.html#connectToHost)( )调用来连接到本地主机。
**See also** [connectToHost](qabstractsocket.html#connectToHost)()和[disconnected](qabstractsocket.html#disconnected)( ) 。
```
void disconnected ()
```
这是该信号的默认超载。
当插座已断开这个信号被发射。
**Warning:**如果您需要删除[sender](qobject.html#sender)在连接到它的插槽这个信号的( ) ,请使用[deleteLater()](qobject.html#deleteLater)功能。
**See also** [connectToHost](qabstractsocket.html#connectToHost)( )[disconnectFromHost](qabstractsocket.html#disconnectFromHost)()和[abort](qabstractsocket.html#abort)( ) 。
```
void error (QAbstractSocket::SocketError)
```
这是该信号的默认超载。
这个信号被发射时发生错误之后。该_socketError_参数描述发生错误的类型。
[QAbstractSocket.SocketError](qabstractsocket.html#SocketError-enum)是不是注册的元类型,所以排队的连接,你将不得不用它注册[Q_DECLARE_METATYPE](qmetatype.html#Q_DECLARE_METATYPE)()和[qRegisterMetaType](qmetatype.html#qRegisterMetaType)( ) 。
**See also** [error](qabstractsocket.html#error)( )[errorString](qiodevice.html#errorString)()和[Creating Custom Qt Types](index.htm)。
```
void hostFound ()
```
这是该信号的默认超载。
之后此信号被发射[connectToHost](qabstractsocket.html#connectToHost)( )被调用并且主机查找成功。
**Note:**由于Qt的4.6.3[QAbstractSocket](qabstractsocket.html)可以从发射hostFound ()直接[connectToHost](qabstractsocket.html#connectToHost)( )调用,因为一个DNS结果可能已经被缓存。
**See also** [connected](qabstractsocket.html#connected)( ) 。
```
void proxyAuthenticationRequired (const QNetworkProxy&,QAuthenticator *)
```
这是该信号的默认超载。
这个信号可以被发射时,一_proxy_需要进行身份验证时使用。该_authenticator_对象可以被填充在与必需的细节,以便验证和持续的连接。
**Note:**这是不可能使用QueuedConnection连接到该信号,就好像所述认证没有被填充了新的信息时,该信号返回的连接失败。
此功能被引入Qt的4.3 。
**See also** [QAuthenticator](qauthenticator.html)和[QNetworkProxy](qnetworkproxy.html)。
```
void stateChanged (QAbstractSocket::SocketState)
```
这是该信号的默认超载。
这个信号被发射时[QAbstractSocket](qabstractsocket.html)的状态变化。该_socketState_参数是新的状态。
[QAbstractSocket.SocketState](qabstractsocket.html#SocketState-enum)是不是注册的元类型,所以排队的连接,你将不得不与Q_REGISTER_METATYPE (注册它)和[qRegisterMetaType](qmetatype.html#qRegisterMetaType)( ) 。
**See also** [state](qabstractsocket.html#state)()和[Creating Custom Qt Types](index.htm)。
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- QGraphicsLayout Class Reference
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- QGraphicsLinearLayout Class Reference
- QGraphicsLineItem Class Reference
- QGraphicsObject Class Reference
- QGraphicsOpacityEffect Class Reference
- QGraphicsPathItem Class Reference
- QGraphicsPixmapItem Class Reference
- QGraphicsPolygonItem Class Reference
- QGraphicsProxyWidget Class Reference
- QGraphicsRectItem Class Reference
- QGraphicsRotation Class Reference
- QGraphicsScale Class Reference
- QGraphicsScene Class Reference
- QGraphicsSceneContextMenuEvent Class Reference
- QGraphicsSceneDragDropEvent Class Reference
- QGraphicsSceneEvent Class Reference
- QGraphicsSceneHelpEvent Class Reference
- QGraphicsSceneHoverEvent Class Reference
- QGraphicsSceneMouseEvent Class Reference
- QGraphicsSceneMoveEvent Class Reference
- QGraphicsSceneResizeEvent Class Reference
- QGraphicsSceneWheelEvent Class Reference
- QGraphicsSimpleTextItem Class Reference
- QGraphicsSvgItem Class Reference
- QGraphicsTextItem Class Reference
- QGraphicsTransform Class Reference
- QGraphicsView Class Reference
- QGraphicsWebView Class Reference
- QGraphicsWidget Class Reference
- QGridLayout Class Reference
- QGroupBox Class Reference
- QHBoxLayout Class Reference
- QHeaderView Class Reference
- QHelpContentItem Class Reference
- QHelpContentModel Class Reference
- QHelpContentWidget Class Reference
- QHelpEngine Class Reference
- QHelpEngineCore Class Reference
- QHelpEvent Class Reference
- QHelpIndexModel Class Reference
- QHelpIndexWidget Class Reference
- QHelpSearchEngine Class Reference
- QHelpSearchQuery Class Reference
- QHelpSearchQueryWidget Class Reference
- QHelpSearchResultWidget Class Reference
- QHideEvent Class Reference
- QHistoryState Class Reference
- QHostAddress Class Reference
- QHostInfo Class Reference
- QHoverEvent Class Reference
- QHttp Class Reference
- QHttpHeader Class Reference
- QHttpMultiPart Class Reference
- QHttpPart Class Reference
- QHttpRequestHeader Class Reference
- QHttpResponseHeader Class Reference
- QIcon Class Reference
- QIconDragEvent Class Reference
- QIconEngine Class Reference
- QIconEngineV2 Class Reference
- QIdentityProxyModel Class Reference
- QImage Class Reference
- QImageIOHandler Class Reference
- QImageReader Class Reference
- QImageWriter Class Reference
- QInputContext Class Reference
- QInputContextFactory Class Reference
- QInputDialog Class Reference
- QInputEvent Class Reference
- QInputMethodEvent Class Reference
- QIntValidator Class Reference
- QIODevice Class Reference
- QItemDelegate Class Reference
- QItemEditorCreatorBase Class Reference
- QItemEditorFactory Class Reference
- QItemSelection Class Reference
- QItemSelectionModel Class Reference
- QItemSelectionRange Class Reference
- QKeyEvent Class Reference
- QKeyEventTransition Class Reference
- QKeySequence Class Reference
- QLabel Class Reference
- QLatin1Char Class Reference
- QLatin1String Class Reference
- QLayout Class Reference
- QLayoutItem Class Reference
- QLCDNumber Class Reference
- QLibrary Class Reference
- QLibraryInfo Class Reference
- QLine Class Reference
- QLinearGradient Class Reference
- QLineEdit Class Reference
- QLineF Class Reference
- QListView Class Reference
- QListWidget Class Reference
- QListWidgetItem Class Reference
- QLocale Class Reference
- QLocalServer Class Reference
- QLocalSocket Class Reference
- QMainWindow Class Reference
- QMargins Class Reference
- QMatrix Class Reference
- QMatrix2x2 Class Reference
- QMatrix2x3 Class Reference
- QMatrix2x4 Class Reference
- QMatrix3x2 Class Reference
- QMatrix3x3 Class Reference
- QMatrix3x4 Class Reference
- QMatrix4x2 Class Reference
- QMatrix4x3 Class Reference
- QMatrix4x4 Class Reference
- QMdiArea Class Reference
- QMdiSubWindow Class Reference
- QMenu Class Reference
- QMenuBar Class Reference
- QMessageBox Class Reference
- QMetaClassInfo Class Reference
- QMetaEnum Class Reference
- QMetaMethod Class Reference
- QMetaObject Class Reference
- QMetaProperty Class Reference
- QMetaType Class Reference
- QMimeData Class Reference
- QMimeSource Class Reference
- QModelIndex Class Reference
- QMouseEvent Class Reference
- QMouseEventTransition Class Reference
- QMoveEvent Class Reference
- QMovie Class Reference
- QMutex Class Reference
- QMutexLocker Class Reference
- QNetworkAccessManager Class Reference
- QNetworkAddressEntry Class Reference
- QNetworkCacheMetaData Class Reference
- QNetworkConfiguration Class Reference
- QNetworkConfigurationManager Class Reference
- QNetworkCookie Class Reference
- QNetworkCookieJar Class Reference
- QNetworkDiskCache Class Reference
- QNetworkInterface Class Reference
- QNetworkProxy Class Reference
- QNetworkProxyFactory Class Reference
- QNetworkProxyQuery Class Reference
- QNetworkReply Class Reference
- QNetworkRequest Class Reference
- QNetworkSession Class Reference
- QObject Class Reference
- QObjectCleanupHandler Class Reference
- QPageSetupDialog Class Reference
- QPaintDevice Class Reference
- QPaintEngine Class Reference
- QPaintEngineState Class Reference
- QPainter Class Reference
- QPainterPath Class Reference
- QPainterPathStroker Class Reference
- QPaintEvent Class Reference
- QPalette Class Reference
- QPanGesture Class Reference
- QParallelAnimationGroup Class Reference
- QPauseAnimation Class Reference
- QPen Class Reference
- QPersistentModelIndex Class Reference
- QPicture Class Reference
- QPictureIO Class Reference
- QPinchGesture Class Reference
- QPixmap Class Reference
- QPixmapCache Class Reference
- QPlainTextDocumentLayout Class Reference
- QPlainTextEdit Class Reference
- QPluginLoader Class Reference
- QPoint Class Reference
- QPointF Class Reference
- QPolygon Class Reference
- QPolygonF Class Reference
- QPrintDialog Class Reference
- QPrintEngine Class Reference
- QPrinter Class Reference
- QPrinterInfo Class Reference
- QPrintPreviewDialog Class Reference
- QPrintPreviewWidget Class Reference
- QProcess Class Reference
- QProcessEnvironment Class Reference
- QProgressBar Class Reference
- QProgressDialog Class Reference
- QPropertyAnimation Class Reference
- QProxyModel Class Reference
- QPushButton Class Reference
- QPyDeclarativePropertyValueSource Class Reference
- QPyDesignerContainerExtension Class Reference
- QPyDesignerCustomWidgetCollectionPlugin Class Reference
- QPyDesignerCustomWidgetPlugin Class Reference
- QPyDesignerMemberSheetExtension Class Reference
- QPyDesignerPropertySheetExtension Class Reference
- QPyDesignerTaskMenuExtension Class Reference
- QPyNullVariant Class Reference
- QPyTextObject Class Reference
- QQuaternion Class Reference
- QRadialGradient Class Reference
- QRadioButton Class Reference
- QRawFont Class Reference
- QReadLocker Class Reference
- QReadWriteLock Class Reference
- QRect Class Reference
- QRectF Class Reference
- QRegExp Class Reference
- QRegExpValidator Class Reference
- QRegion Class Reference
- QResizeEvent Class Reference
- QResource Class Reference
- QRubberBand Class Reference
- QRunnable Class Reference
- QScriptClass Class Reference
- QScriptClassPropertyIterator Class Reference
- QScriptContext Class Reference
- QScriptContextInfo Class Reference
- QScriptEngine Class Reference
- QScriptEngineAgent Class Reference
- QScriptEngineDebugger Class Reference
- QScriptString Class Reference
- QScriptSyntaxCheckResult Class Reference
- QScriptValue Class Reference
- QScriptValueIterator Class Reference
- QScrollArea Class Reference
- QScrollBar Class Reference
- QSemaphore Class Reference
- QSequentialAnimationGroup Class Reference
- QSessionManager Class Reference
- QSettings Class Reference
- QSharedMemory Class Reference
- QShortcut Class Reference
- QShortcutEvent Class Reference
- QShowEvent Class Reference
- QSignalMapper Class Reference
- QSignalTransition Class Reference
- QSimpleXmlNodeModel Class Reference
- QSize Class Reference
- QSizeF Class Reference
- QSizeGrip Class Reference
- QSizePolicy Class Reference
- QSlider Class Reference
- QSocketNotifier Class Reference
- QSortFilterProxyModel Class Reference
- QSound Class Reference
- QSourceLocation Class Reference
- QSpacerItem Class Reference
- QSpinBox Class Reference
- QSplashScreen Class Reference
- QSplitter Class Reference
- QSplitterHandle Class Reference
- QSql Class Reference
- QSqlDatabase Class Reference
- QSqlDriver Class Reference
- QSqlDriverCreatorBase Class Reference
- QSqlError Class Reference
- QSqlField Class Reference
- QSqlIndex Class Reference
- QSqlQuery Class Reference
- QSqlQueryModel Class Reference
- QSqlRecord Class Reference
- QSqlRelation Class Reference
- QSqlRelationalDelegate Class Reference
- QSqlRelationalTableModel Class Reference
- QSqlResult Class Reference
- QSqlTableModel Class Reference
- Qt4.7文档翻译:Qt样式单参考,Qt Style Sheets Reference
- QSsl Class Reference
- QSslCertificate Class Reference
- QSslCipher Class Reference
- QSslConfiguration Class Reference
- QSslError Class Reference
- QSslKey Class Reference
- QSslSocket Class Reference
- QStackedLayout Class Reference
- QStackedWidget Class Reference
- QStandardItem Class Reference
- QStandardItemModel Class Reference
- QState Class Reference
- QStateMachine Class Reference
- QStaticText Class Reference
- QStatusBar Class Reference
- QStatusTipEvent Class Reference
- QString Class Reference
- QStringList Class Reference
- QStringListModel Class Reference
- QStringMatcher Class Reference
- QStringRef Class Reference
- QStyle Class Reference
- QStyledItemDelegate Class Reference
- QStyleFactory Class Reference
- QStyleHintReturn Class Reference
- QStyleHintReturnMask Class Reference
- QStyleHintReturnVariant Class Reference
- QStyleOption Class Reference
- QStyleOptionButton Class Reference
- QStyleOptionComboBox Class Reference
- QStyleOptionComplex Class Reference
- QStyleOptionDockWidget Class Reference
- QStyleOptionDockWidgetV2 Class Reference
- QStyleOptionFocusRect Class Reference
- QStyleOptionFrame Class Reference
- QStyleOptionFrameV2 Class Reference
- QStyleOptionFrameV3 Class Reference
- QStyleOptionGraphicsItem Class Reference
- QStyleOptionGroupBox Class Reference
- QStyleOptionHeader Class Reference
- QStyleOptionMenuItem Class Reference
- QStyleOptionProgressBar Class Reference
- QStyleOptionProgressBarV2 Class Reference
- QStyleOptionRubberBand Class Reference
- QStyleOptionSizeGrip Class Reference
- QStyleOptionSlider Class Reference
- QStyleOptionSpinBox Class Reference
- QStyleOptionTab Class Reference
- QStyleOptionTabBarBase Class Reference
- QStyleOptionTabBarBaseV2 Class Reference
- QStyleOptionTabV2 Class Reference
- QStyleOptionTabV3 Class Reference
- QStyleOptionTabWidgetFrame Class Reference
- QStyleOptionTabWidgetFrameV2 Class Reference
- QStyleOptionTitleBar Class Reference
- QStyleOptionToolBar Class Reference
- QStyleOptionToolBox Class Reference
- QStyleOptionToolBoxV2 Class Reference
- QStyleOptionToolButton Class Reference
- QStyleOptionViewItem Class Reference
- QStyleOptionViewItemV2 Class Reference
- QStyleOptionViewItemV3 Class Reference
- QStyleOptionViewItemV4 Class Reference
- QStylePainter Class Reference
- QSvgGenerator Class Reference
- QSvgRenderer Class Reference
- QSvgWidget Class Reference
- QSwipeGesture Class Reference
- QSyntaxHighlighter Class Reference
- QSysInfo Class Reference
- QSystemLocale Class Reference
- QSystemSemaphore Class Reference
- QSystemTrayIcon Class Reference
- Qt Class Reference
- QTabBar Class Reference
- QTabletEvent Class Reference
- QTableView Class Reference
- QTableWidget Class Reference
- QTableWidgetItem Class Reference
- QTableWidgetSelectionRange Class Reference
- QTabWidget Class Reference
- QTapAndHoldGesture Class Reference
- QTapGesture Class Reference
- QTcpServer Class Reference
- QTcpSocket Class Reference
- QTemporaryFile Class Reference
- QTest Class Reference
- QTextBlock Class Reference
- QTextBlockFormat Class Reference
- QTextBlockGroup Class Reference
- QTextBlockUserData Class Reference
- QTextBoundaryFinder Class Reference
- QTextBrowser Class Reference
- QTextCharFormat Class Reference
- QTextCodec Class Reference
- QTextCursor Class Reference
- QTextDecoder Class Reference
- QTextDocument Class Reference
- QTextDocumentFragment Class Reference
- QTextDocumentWriter Class Reference
- QTextEdit Class Reference
- QTextEncoder Class Reference
- QTextFormat Class Reference
- QTextFragment Class Reference
- QTextFrame Class Reference
- QTextFrameFormat Class Reference
- QTextImageFormat Class Reference
- QTextInlineObject Class Reference
- QTextItem Class Reference
- QTextLayout Class Reference
- QTextLength Class Reference
- QTextLine Class Reference
- QTextList Class Reference
- QTextListFormat Class Reference
- QTextObject Class Reference
- QTextObjectInterface Class Reference
- QTextOption Class Reference
- QTextStream Class Reference
- QTextTable Class Reference
- QTextTableCell Class Reference
- QTextTableCellFormat Class Reference
- QTextTableFormat Class Reference
- QThread Class Reference
- QThreadPool Class Reference
- QTime Class Reference
- QTimeEdit Class Reference
- QTimeLine Class Reference
- QTimer Class Reference
- QTimerEvent Class Reference
- QToolBar Class Reference
- QToolBox Class Reference
- QToolButton Class Reference
- QToolTip Class Reference
- QTouchEvent Class Reference
- Reference
- QTransform Class Reference
- QTranslator Class Reference
- QTreeView Class Reference
- QTreeWidget Class Reference
- QTreeWidgetItem Class Reference
- QTreeWidgetItemIterator Class Reference
- QUdpSocket Class Reference
- QUndoCommand Class Reference
- QUndoGroup Class Reference
- QUndoStack Class Reference
- QUndoView Class Reference
- QUrl Class Reference
- QUrlInfo Class Reference
- QUuid Class Reference
- QValidator Class Reference
- QVariant Class Reference
- QVariantAnimation Class Reference
- QVBoxLayout Class Reference
- QVector2D Class Reference
- QVector3D Class Reference
- QVector4D Class Reference
- QVideoFrame Class Reference
- QVideoSurfaceFormat Class Reference
- QWaitCondition Class Reference
- QWebDatabase Class Reference
- QWebElement Class Reference
- QWebElementCollection Class Reference
- QWebFrame Class Reference
- QWebHistory Class Reference
- QWebHistoryInterface Class Reference
- QWebHistoryItem Class Reference
- QWebHitTestResult Class Reference
- QWebInspector Class Reference
- QWebPage Class Reference
- QWebPluginFactory Class Reference
- QWebSecurityOrigin Class Reference
- QWebSettings Class Reference
- QWebView Class Reference
- QWhatsThis Class Reference
- QWhatsThisClickedEvent Class Reference
- QWheelEvent Class Reference
- QWidget Class Reference
- QWidgetAction Class Reference
- QWidgetItem Class Reference
- QWindowStateChangeEvent Class Reference
- QWizard Class Reference
- QWizardPage Class Reference
- QWorkspace Class Reference
- QWriteLocker Class Reference
- QX11EmbedContainer Class Reference
- QX11EmbedWidget Class Reference
- QX11Info Class Reference
- QXmlAttributes Class Reference
- QXmlContentHandler Class Reference
- QXmlDeclHandler Class Reference
- QXmlDefaultHandler Class Reference
- QXmlDTDHandler Class Reference
- QXmlEntityResolver Class Reference
- QXmlErrorHandler Class Reference
- QXmlFormatter Class Reference
- QXmlInputSource Class Reference
- QXmlItem Class Reference
- QXmlLexicalHandler Class Reference
- QXmlLocator Class Reference
- QXmlName Class Reference
- QXmlNamePool Class Reference
- QXmlNamespaceSupport Class Reference
- QXmlNodeModelIndex Class Reference
- QXmlParseException Class Reference
- QXmlQuery Class Reference
- QXmlReader Class Reference
- QXmlResultItems Class Reference
- QXmlSchema Class Reference
- QXmlSchemaValidator Class Reference
- QXmlSerializer Class Reference
- QXmlSimpleReader Class Reference
- QXmlStreamAttribute Class Reference
- QXmlStreamAttributes Class Reference
- QXmlStreamEntityDeclaration Class Reference
- QXmlStreamEntityResolver Class Reference
- QXmlStreamNamespaceDeclaration Class Reference
- QXmlStreamNotationDeclaration Class Reference
- QXmlStreamReader Class Reference
- QXmlStreamWriter Class Reference