ActionIF.getParameterType

Queries the type of the parameter that must be given when activating @action.

When activating the action using g_action_activate(), the #GVariant given to that function must be of the type returned by this function.

In the case that this function returns %NULL, you must not give any #GVariant, but %NULL instead.

Return: the parameter type

interface ActionIF
getParameterType
()

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Since

2.28