add_action

Description:

public void add_action (string id, string? label, VariantType? parameter_type, Variant? parameter_hint)

Adds an action with id and label to message.

Actions are an alternative way for users to activate a message. Note that messages can still be activated without an action.

If parameter_type is non-null, the action is able to receive user input in addition to simply activating the action. Currently, only string parameters are supported.

A list of predefined parameters can be supplied as a Variant array of parameter_type in parameter_hint. If parameter_hint is floating, it will be consumed.

It is recommended to add at most two actions to a message.

Parameters:

this	a Message
id	unique id of the action
label	label of the action
parameter_type	a VariantType
parameter_hint	a Variant suggesting a valid range for parameters