/Qt 5.11

Connection Class

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

Public Functions

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

Detailed Description

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

See also QObject::disconnect().

Member Function Documentation


Creates a Connection instance.

Connection::Connection(const Connection &other)

Create a copy of the handle to the other connection

Connection::Connection(Connection &&o)

Move-constructs a Connection instance, making it point to the same object that o was pointing to.


Destructor for QMetaObject::Connection.

bool Connection::operator bool() const

Returns true if the connection is valid.

The connection is valid if the call to QObject::connect succeeded. The connection is invalid if 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)

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

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

Move-assigns other to this object, and returns a reference.

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Licensed under the GNU Free Documentation License, Version 1.3.