Connections QML Type

Describes generalized connections to signals More...

• List of all members, including inherited members

Properties

• enabled : bool
• ignoreUnknownSignals : bool
• target : Object

Detailed Description

A Connections object creates a connection to a QML signal.

When connecting to signals in QML, the usual way is to create an "on<Signal>" handler that reacts when a signal is received, like this:

  MouseArea {
      onClicked: { foo(parameters) }
  }

However, it is not possible to connect to a signal in this way in some cases, such as when:

• Multiple connections to the same signal are required
• Creating connections outside the scope of the signal sender
• Connecting to targets not defined in QML

When any of these are needed, the Connections type can be used instead.

For example, the above code can be changed to use a Connections object, like this:

  MouseArea {
      Connections {
          onClicked: foo(parameters)
      }
  }

More generally, the Connections object can be a child of some object other than the sender of the signal:

  MouseArea {
      id: area
  }
  // ...

  Connections {
      target: area
      onClicked: foo(parameters)
  }

See also Qt QML.

Property Documentation