When calling a function, PowerBuilder searches until it finds a matching function and executes it--the search ends.
Using functions with the same name but different arguments is called function overloading.
If you don't qualify a function name with an object, PowerBuilder searches for the function and executes the first one it finds that matches the name and arguments. It searches for a match in the following order:
1 A global external function
2 A global function
3 An object function and local external function (if the object is a descendant, PowerBuilder searches upward through the ancestor hierarchy to find a match for the function prototype)
4 A system function
so,你的显然不是重载的情况,按照pb处理函数和事件机制的不同而定,达到你的要求,要么copy代码,要么Super::function(当然这个简单些咯)。