Installs new properties from an array of GParamSpecs. This is
usually done in the class initializer.
The property id of each property is the index of each GParamSpec in
the pspecs array.
The property id of 0 is treated specially by GObject and it should not
be used to store a GParamSpec.
This function should be used if you plan to use a static array of
GParamSpecs and g_object_notify_by_pspec(). For instance, this
Since 2.26
Installs new properties from an array of GParamSpecs. This is usually done in the class initializer. The property id of each property is the index of each GParamSpec in the pspecs array. The property id of 0 is treated specially by GObject and it should not be used to store a GParamSpec. This function should be used if you plan to use a static array of GParamSpecs and g_object_notify_by_pspec(). For instance, this Since 2.26