Connecting Objects to Signals
QML types have predefined signals that are emitted when users interact with the application. For example, the MouseArea type from the QtQuick module has a
clicked signal that is emitted whenever the mouse is clicked within the area. Since the signal name is
clicked, the signal handler for receiving this signal is named
For more information about signals and signal handlers, see Signal and Handler Event System.
To access a signal outside of the object that emits it, you can use the Connections type for connecting to signals of arbitrary objects. A connections object can receive any signal from its specified target. You can connect objects to signals that are available to them in the Connections view.
To connect objects to signals:
- In the Connections view, select the Connections tab.
- Select the (Add) button to add a connection.
- Double-click the value in the Target column to add the object to connect to a signal.
- Double-click the value in the Signal Handler column to select the signal that the connection will listen to from a list of all signals available for the object.
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