Sets the action-name and associated string target value of an
actionable widget.
This allows for the effect of both gtk_actionable_set_action_name()
and gtk_actionable_set_action_target_value() in the common case that
the target is string-valued.
detailed_action_name is a string of the form
"action::target" where action
is the action name and target is the string to use
as the target.
Sets the action-name and associated string target value of an actionable widget. This allows for the effect of both gtk_actionable_set_action_name() and gtk_actionable_set_action_target_value() in the common case that the target is string-valued. detailed_action_name is a string of the form "action::target" where action is the action name and target is the string to use as the target.