Adding handlers with class wizard, Visual Basic Programming

Adding Handlers With Class Wizard:

Whenever a handler is added, the class wizard places the prototype for the message handler in the header (.H) file. It gives a skeleton handler in the implementation file (.cpp) in the class that is placed in the base class combo box. It also adds the messagemap entry which connects the message and the handler in the implementation file. For illustration, for the WM_LBUTTONDOWN message, the prototype afx_msg void OnLButtonDown( UINT nFlags, CPoint point) is inserted in the header (.H) file by the class wizard. The class wizard includes the skeleton handler in the implementation file (.cpp). The skeleton handler would look as shown below:

void CAppView :: OnLButtonDown( UINT nFlags, CPoint point)

Also the class wizard inserts an entrance in the Message_Map macro.

BEGIN_MESSAGE_MAP( CAppView, CView)

.

.

ON_WM_LBUTTONDOWN()

.

.

END_MESSAGE_MAP()

Posted Date: 10/10/2012 1:26:12 AM | Location : United States







Related Discussions:- Adding handlers with class wizard, Assignment Help, Ask Question on Adding handlers with class wizard, Get Answer, Expert's Help, Adding handlers with class wizard Discussions

Write discussion on Adding handlers with class wizard
Your posts are moderated
Related Questions
I''m trying to create a program in VB.net that will basically load the page within itself and allow you to input data via the program rather than going to the actual site using you

You are given a console program in both VB and C# that uses a class CElevator (ElevatorAppAssign). The main modules are in the assign directory class files. Below is a discus


Event-Driven Programming: The Event-driven programming allows the program to react to various inputs or events.   The action on a graphical component is an event. For il

#question.algorithemtofindwhetheragivennumberisprime/not.

Beyond the simple string or numeric classifications, Variant can make added distinctions regarding the specific nature of numeric information. For instance, you can have numeric in

IMAGELIST The CImageList object is a collection of the same sized images, all of which can be referred to by its index. The ImageList are used to proficiently manage the large

MDI Application: The MDI application utilizes the main frame window as the work space in which the user can open more document frame windows.

DOCUMENT VIEW ARCHITECTURE The Document/View architecture is used to build an application based on the Microsoft Foundation Classes library. The Document/View architecture is s

Part 1: Create an application that allows the user to enter the following employee data: First Name, Middle Name, Last Name, Employee Number, Department, Telephone Number, Telephon