What is a message map, and what is the advantage of a
message map over virtual functions?

Answer Posted / raju

Message Map is a logical table that maps the windows
messages to the member functions of the class.
Message map is to avoid following drawbacks:
1) Most windows only process a small number of messages,
yet each window require to giant virtual function table
with the entries of each message.
2) Virtual functions don't handle user defined messages and
other custom cases.

Is This Answer Correct ?    12 Yes 0 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

what is functioning of DIalodDataXchange ..?

1273


what is the meaning of constant FILE EXCEEDS LENGTH LIMIT while loading from ps file to vsam in the jcl?

3451


List out the basic features of MFC.

14034


What is the difference between Struts and JSF? Pls list some most suitable differences.

2928


How to handle dynamic menus in mfc? What happens when client calls cocreateinstance?

807






What does mfc stand for?

1079


Do you have an idea about MFC?

1017


plzz tell me what we can do and dont in tally ERP & sap business one?

1975


how to repaint when working with horizontal scroll bar

1624


How do I create a dialog box in mfc?

695


What is mfc class hierarchy?

703


2.create for 10 batch: Employee_Number Employee_name Employee_Dateofjoining Employee_address Employee_salary 1.select the employee name who deriving more than 10 thousand salary and joined before august 08. use structure and pointers

1891


I want recent paper pattern for HP company?

1897


what message is sent to an application when the user presses the primary button?

1470