Adds an individual action to this.
This action will only be activated if the given button/ring/strip number in index
is interacted while the current mode is
mode
. -1 may be used for simple cases, so the action is triggered on all modes.
The given label
should be considered user-visible, so internationalization rules apply. Some windowing systems may be able
to use those for user feedback.
this |
a `GtkPadController` |
type |
the type of pad feature that will trigger this action |
index |
the 0-indexed button/ring/strip number that will trigger this action |
mode |
the mode that will trigger this action, or -1 for all modes. |
label |
Human readable description of this action, this string should be deemed user-visible. |
action_name |
action name that will be activated in the `GActionGroup` |