Hi All, I am not vry clear with the usage of callback function for Event handling. What i understand is that, the Application registers a callback function. This callback func has the code to handle the diffent events that are expected. When one of these events hapen, the Callbak func gets called. But what i want to understand is that, how does the callback function gets to know that it has to get executed? If the same event is handled by two diff functons, then what should happen.. Plz send me links or pointers wher i can study mor about the same topic. Thanks in advance.