setProperty on a scoped property (like "border.color")?

[allany]

Hello,

I my QML file, I have a Rectangle named "thumb". I'd like to be able to change its colors from C++...

QObject *thumb = findChild<QObject*>("thumb");
if (thumb) {
    thumb->setProperty("color", "red");
    thumb->setProperty("border.color", "red");
}

When the code above is executed, the "color" property gets set, but the "border.color" property does not (and that line returns false).

Should it be possible to change a scoped/nested property such as "border.color" using setProperty()? Or is there an alternate method or syntax for this?

Thank you.
-Allan

[allany]

...and here's a related issue:

Assume that my Rectangle has this Behavior attached to its border.color property:

        Behavior on border.color {
            objectName: "thumb_color_behavior"
            enabled: false
            ColorAnimation {
                duration: 250
                easing.type: Easing.Linear
            }
        }

In C++, I try to get this Behavior object:

QObject *thumb = findChild<QObject*>("thumb_color_behavior");
if (thumb) {
    thumb->setProperty("enabled", true);
}

...however, the findChild call returns NULL.

But note (and this relates to my initial question)...if the Behavior was attached to a non-scoped property such as "color" (instead of "border.color"), then the findChild call would succeed.

@allany