[ Version ( since = "3.0" ) ]
public void set_opacity (double opacity)
This procedure sets the opacity of this on a range from 0.0 (transparent) to 1.0 (opaque).
The change is not synced immediately with the core application. Use [method@Gimp.Drawable.update] to trigger an actual update.
| this |
The drawable's filter. |
| opacity |
the opacity. |