I can't get the signal to work in QML

w.tkm

Hi.
I want to use signal in QML.
I did it this way, but I can't do.

main.qml

Window {
    width: 640
    height: 480
    visible: true
    title: qsTr("Hello World")

    MyRect{
        anchors.centerIn: parent
        height: 50
        width: 50
        color: "red"
        border.width: 1
        border.color: "gray"
    }

    Connections{
        target: MyRectForm
        function testSig(){
            console.log("get")
        }
    }
}

MyRectForm.qml

MyRectForm{

    signal testSig

    Connections{
        target: rectMouseArea
        function onClicked(){
            console.log("send")
            testSig()
        }
    }
}

The content of MyRect.ui.qml is a very simple rectangle.
I get log "send", when I click this rectangle. But I don't get "get".

I thought it might be possible, so I tried changing "function testSig()" to "function onTestSig()", but I got an error.
It error string is
[QML Connections: Detected function "onTestSig" in Connections element. This is probably intended to be a signal handler but no signal of the target matches the name.]

How can I get the signal to work?

eyllanesc

@w-tkm MyRectForm makes no sense in main.qml, target must have the id of the item that has the signal:

import QtQuick 2.15
import QtQuick.Window 2.15

Window {
    width: 640
    height: 480
    visible: true
    title: qsTr("Hello World")

    MyRect{
        id: myRect
        anchors.centerIn: parent
        height: 50
        width: 50
        color: "red"
        border.width: 1
        border.color: "gray"
    }

    Connections{
        target: myRect
        function onTestSig(){
            console.log("get")
        }
    }
}

eyllanesc

@w-tkm what is rectMouseArea? share MyRectForm.ui.qml

w.tkm

@eyllanesc
Sorry, It in MyRect.qml

Rectangle{
    id: systemRect
    property alias rectMouseArea: rectMouseArea

    MouseArea{
        id: rectMouseArea
        anchors.fill: parent
    }
}

eyllanesc

@w-tkm MyRectForm makes no sense in main.qml, target must have the id of the item that has the signal:

import QtQuick 2.15
import QtQuick.Window 2.15

Window {
    width: 640
    height: 480
    visible: true
    title: qsTr("Hello World")

    MyRect{
        id: myRect
        anchors.centerIn: parent
        height: 50
        width: 50
        color: "red"
        border.width: 1
        border.color: "gray"
    }

    Connections{
        target: myRect
        function onTestSig(){
            console.log("get")
        }
    }
}

w.tkm

@eyllanesc
Thanks,I have one more question.

    Row{
            anchors.centerIn: parent
            Repeater{
                id: rectSet
                model: 3
                MyRect{
                    width: 50
                    height: 50
                    color: "red"
                    border.width: 1
                    border.color: "gray"
                }
            }
        }

What should I do if I use a Repeater in this way?

eyllanesc

@w-tkm If you have another question then create another post