QQmlExtensionPlugin : C++ constructor called but no QML component created

[SQEW]

Hi,

I'm trying to figure out how QQmlExtensionPlugin works.

I created a plugin which derives from this class (called Button) which I import with QQmlEngine::importPlugin();
The uri is now registered and I can instantiate it in other QML documents.

If I do, the C++ constructor is called, but no QML component is created.

If I understand correctly, I need to specify this in the qmldir file. But I'm confused where exactly this needs to point to. Ideally this would refer to a resource, since I would like to keep everything within the plugin.

This is my resource file:

@
<RCC>
<qresource prefix="/button">
<file alias="Button">Button.qml</file>
</qresource>
</RCC>
@

And this is my qmldir file

@
module Button
Button 1.0 /button/Button.qml
@

but to no avail.

Thanks for reading