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What is the equavilent RaiseEvent of VB in MFC?

Posted on 1998-10-14
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Last Modified: 2013-11-20
In VB, u can raise a user-defined event by RaiseEvent...
e.g. in VB
Event XX
Sub YYYY
   .......
   RaiseEvent XX
End Sub

May I know how to do so in MFC??? Please provide a full working sample code as well....

Though I could not afford much points but I promise good grade.... :-)
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Question by:samyee
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3 Comments
 
LVL 2

Expert Comment

by:chris_a
ID: 1323292
Use class wizard to add the event, then you just call the procedure it creates
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Accepted Solution

by:
amby earned 50 total points
ID: 1323293
2 cases:
 1 - OCX (or ActiveX control):
create your event with ClassWizard (ctrl+w, got to 'automation' tab for the right project/class, button 'add event')
in the program, call Fire... where ... is the name of the event (by default), with parameters.

 2 - Standard project, win32 or MFC:

you can use window messages:
define a new message:
#define MY_MSG  WM_APP + 1

to cath the event, in the class definition file (.h), add

afx_msg long OnMyMsg(WPARAM wParam, LPARAM lParam);

in the implementation file (.cpp), find
BEGIN_MESSAGE_MAP(...)
where ... is the name of the class
just below the found line, add
ON_MESSAGE(MY_MSG, OnMyMsg)

(do not finish this line with a ';')

at the bottom of the implementation file, define the message handler

long ...::OnMyMsg(WPARAM wParam, LPARAM lParam)
{
    the_code_you_want_to_handle_the_message();
}

both are valid only for CWnd-derived objects (= any window)
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Author Comment

by:samyee
ID: 1323294
Thanks a lot!!!
0

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