Returns TRUE if a property has been registered, if pspec or parse_func are not NULL, the gobject.ParamSpec and parsing function will be respectively returned.
property name to look up
return location for the parse function
return location for the gobject.ParamSpec
TRUE if the property is registered, FALSE otherwise
Deprecated: This code could only look up custom properties and those are deprecated.
3.0
Returns TRUE if a property has been registered, if pspec or parse_func are not NULL, the gobject.ParamSpec and parsing function will be respectively returned.