?
Solved

TAPI and the MFC

Posted on 1997-04-16
2
Medium Priority
?
421 Views
Last Modified: 2013-11-20
I currently wiriting a telephony app using VC++ and the MFC. I've encapsulated a large portion of the TAPI API in a CTapi class which is globally decalred.  My problem is that the CALLBACK function causes my system to crash every time it is accessed by the TAPI dll. I can trace the flow of control into the callback function but as soon as it tries
to return the system crashes. It appears totally locked up, even the win95 taskmanager is locked.  I think something is interfering with the windows messaging, but I'm not sure.
0
Comment
Question by:Aurora041697
[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 Comments
 

Author Comment

by:Aurora041697
ID: 1301040
Edited text of question
0
 
LVL 11

Accepted Solution

by:
mikeblas earned 300 total points
ID: 1301041
Either your callback function has the wrong function prototype and/or calling convention, or you're trashing the stack before you return.  (I'm giving you the benefit of the doubt that you're not doing something in your callback that you shouldn't be and making TAPI or the rest of the system unstable.)

.B ekiM
0

Featured Post

Free Tool: Site Down Detector

Helpful to verify reports of your own downtime, or to double check a downed website you are trying to access.

One of a set of tools we are providing to everyone as a way of saying thank you for being a part of the community.

Question has a verified solution.

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

Introduction: The undo support, implementing a stack. Continuing from the eigth article about sudoku.   We need a mechanism to keep track of the digits entered so as to implement an undo mechanism.  This should be a ‘Last In First Out’ collec…
Have you tried to learn about Unicode, UTF-8, and multibyte text encoding and all the articles are just too "academic" or too technical? This article aims to make the whole topic easy for just about anyone to understand.
This video will show you how to get GIT to work in Eclipse.   It will walk you through how to install the EGit plugin in eclipse and how to checkout an existing repository.
In this video, Percona Director of Solution Engineering Jon Tobin discusses the function and features of Percona Server for MongoDB. How Percona can help Percona can help you determine if Percona Server for MongoDB is the right solution for …
Suggested Courses

777 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