Solved

How to make a CALLBACK Function ???

Posted on 2000-03-09
4
274 Views
Last Modified: 2008-02-01
I have made a function that shows an Icon in the taskbar of windows98, and in that funtion I've told windows to make a callback message by using NOTIFYICONDATA structure.
My question now is, how do I make a funtion in my c++builder 5 that recieves the message from windows, when my mouse click's on the icon ???
I have read, that I should make a callback function, but I don't know how to do that. The function that I want to receive the windows message is called:
void On_MYWM_NOTIFYICON(WPARAM wParam, LPARAM lParam)
so I hope you know what is missing ???
0
Comment
Question by:RO
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 2
4 Comments
 
LVL 8

Accepted Solution

by:
gelbert earned 50 total points
ID: 2601861
h

class CMainFrame : public CFrameWnd
{
DECLARE_DYNAMIC(CMainFrame)  
//{{AFX_MSG(CMainFrame)
....
afx_msg LRESULT OnTrayNotification(WPARAM wp, LPARAM lp);  
....
//}}AFX_MSG  
DECLARE_MESSAGE_MAP()};

..cpp

BEGIN_MESSAGE_MAP(CMainFrame, CFrameWnd)  
//{{AFX_MSG_MAP(CMainFrame)  
....
ON_MESSAGE(WM_MY_TRAY_NOTIFICATION, OnTrayNotification)  
....
//}}AFX_MSG_MAP
END_MESSAGE_MAP()
0
 
LVL 5

Expert Comment

by:Wyn
ID: 2601935
c++builder 5 !!!
0
 
LVL 8

Expert Comment

by:gelbert
ID: 2602031
Use in .h
LRESULT CALLBACK OnTrayNotification(WPARAM wp, LPARAM lp);
Use in .cpp
LRESULT CALLBACK OnTrayNotification(WPARAM wp, LPARAM lp)
{
   return (long)0;
}
0
 

Author Comment

by:RO
ID: 2612444
I'm sorry that I distorbed you, but your answer wasn't what I was looking for. I've solved my problem by using something called message map in borland c++ builder 5.
Thanks anyway for traying to help!!!
0

Featured Post

Technology Partners: We Want Your Opinion!

We value your feedback.

Take our survey and automatically be enter to win anyone of the following:
Yeti Cooler, Amazon eGift Card, and Movie eGift Card!

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Often, when implementing a feature, you won't know how certain events should be handled at the point where they occur and you'd rather defer to the user of your function or class. For example, a XML parser will extract a tag from the source code, wh…
Many modern programming languages support the concept of a property -- a class member that combines characteristics of both a data member and a method.  These are sometimes called "smart fields" because you can add logic that is applied automaticall…
The viewer will learn how to pass data into a function in C++. This is one step further in using functions. Instead of only printing text onto the console, the function will be able to perform calculations with argumentents given by the user.
The viewer will be introduced to the technique of using vectors in C++. The video will cover how to define a vector, store values in the vector and retrieve data from the values stored in the vector.

710 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question