?
Solved

Help For CAsyncSockt..?

Posted on 1998-06-16
2
Medium Priority
?
170 Views
Last Modified: 2013-11-20
Anybody can tell you how to use CAsyncSockt in Non-Blocking mode..? If Possible any sample code also..The doubt is how to use the notification messages.

Thanx In Advance
Sanesh
0
Comment
Question by:sanesh
  • 2
2 Comments
 
LVL 32

Accepted Solution

by:
jhance earned 200 total points
ID: 1317997
It's pretty simple:

1) Derive your own class from CAsyncSocket, say myAsyncSocket so that you can override the OnXXX functions to receive the notification messages. Do this by using the ClassWizard, Add new class dialog.  Be sure to select CAsyncSocket as the base class.

2) Add an instance of myAsyncsocket to your application.

3) Using the ClassWizard in VC++, add the message maps for the notifications you want to receive.

4) Implement your OnXXX functions.  It seems the biggest confusion is about OnSend.  It notifies that it is OK to send data, NOT that the data has been sent.

0
 
LVL 32

Expert Comment

by:jhance
ID: 1317998
Oops, I forgot to include:

Call IOCtl(FIONBIO, &dwNoblock); (with dwNoblock a DWORD != 0)
to make the socket non-blocking, then call

AsyncSelect() to enable the notifications you want to receive.  

Remember to set the lEvent paramter in Create to 0 so that you can call IOCtl on the object.
0

Featured Post

Keep up with what's happening at Experts Exchange!

Sign up to receive Decoded, a new monthly digest with product updates, feature release info, continuing education opportunities, and more.

Question has a verified solution.

Are you are experiencing a similar issue? Get a personalized answer when you ask a related question.

Have a better answer? Share it in a comment.

Join & Write a Comment

Introduction: Displaying information on the statusbar.   Continuing from the third article about sudoku.   Open the project in visual studio. Status bar – let’s display the timestamp there.  We need to get the timestamp from the document s…
In this post we will learn different types of Android Layout and some basics of an Android App.
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 response to a need for security and privacy, and to continue fostering an environment members can turn to for support, solutions, and education, Experts Exchange has created anonymous question capabilities. This new feature is available to our Pr…

589 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