lupdate_only {
    SOURCES +=  $$PWD/ui/*.qml
}

TRANSLATIONS +=
   translations/i18n_nl.ts translations/i18n_fr.ts translations/i18n_en.ts

MessageDialog {
    title: qsTr("Warning")
    text: qsTr("Please select Yes or No")
    icon: StandardIcon.Warning
    standardButtons: StandardButton.Yes | StandardButton.No
    .....
}

Button {
            id: yesButton
            text: qsTr("Yes")
            onClicked: root.click(StandardButton.Yes)
            visible: root.standardButtons & StandardButton.Yes
       }