Borderless window in clutter(mm)

I'm trying to use cluttermm to create a borderless window (for example, something like this).

In other words, I want to draw a rectangle on screen and some text on it, but NOT in a window, and NOT with borders.

Is clutter a really bad choice for this, or how can I do this?

开发者_运维知识库Thanks!

Clutter itself doesn't offer any API to do this, and defers to the platform's API to control the actual window.

you can use Clutter-GTK and the GtkWindow API to remove the decoration from the window embedding the stage.