Functions connected to signals using connect() cannot receive QObject* values

Rectangle {
    id: rect
    width: 200; height: 50

    function myFunction(mouse) {
        console.log("In function:", mouse, mouse.x)
    }

    MouseArea {
        id: area
        anchors.fill: parent
        onClicked: {
            console.log("In handler:", mouse, mouse.x)
        }
    }

    Component.onCompleted: {
        area.clicked.connect(myFunction)
    }
}

In handler: QDeclarativeMouseEvent(0x7fff5fbfdb10) 108
In function: QVariant(QDeclarativeMouseEvent*) undefined