內容

• 公共函數
• 詳細描述

Connection 類

( QMetaObject::Connection )

頭：	#include <Connection>
qmake:	QT += core

• 所有成員列錶，包括繼承成員

公共函數

	Connection ()
	Connection (const Connection & other )
	Connection (Connection && o )
	~Connection ()
	operator bool () const
Connection &	operator= (const Connection & other )
Connection &	operator= (Connection && other )

詳細描述

Represents a handle to a signal-slot connection. It can be used to disconnect that connection, or check if the connection was successful

另請參閱 QObject::disconnect ().

成員函數文檔編製

Connection:: Connection ()

創建連接實例。

Connection:: Connection (const Connection & other )

構造副本為 other .

Connection:: Connection ( Connection && o )

Move-constructs a Connection instance, making it point to the same object that o 所指嚮的。

Connection:: ~Connection ()

析構函數為 QMetaObject::Connection .

Connection:: operator bool () const

返迴 true 若連接有效。

連接有效若調用 QObject::connect 成功。連接無效若 QObject::connect was not able to find the signal or the slot, or if the arguments do not match.

Connection &Connection:: operator= (const Connection & other )

賦值 other to this connection and returns a reference to this connection.

Connection &Connection:: operator= ( Connection && other )

移動賦值 other 到此對象，並返迴引用。