?
Solved

Control IDs ?

Posted on 1998-12-29
3
Medium Priority
?
178 Views
Last Modified: 2010-04-02
I am creating a listview with the following statement

m_pListView->Create( WS_VISIBLE |  LVS_SINGLESEL | LVS_NOSORTHEADER | LVS_SHOWSELALWAYS | LVS_REPORT, rect, this, ID_LISTVIEW );

This code comes from an example in a book. The problem is that no explanation is given as to where to declare ID_LISTVIEW and what number to make it. If I just use 120 it works but I would like to be a bit more certain about what is going on. All help will be greatly appreciated.
0
Comment
Question by:agrillage
[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
3 Comments
 

Accepted Solution

by:
koskia earned 60 total points
ID: 1181218
hello agrillage,
every control in MFC must have a uniqe UINT (32 bit value)
number, which Identifies it.
many calls uses this ID as a parameter,
you can't use 120!
there may be a resource or another control with the same ID
if you want to create a unique id, use a #define statement
there is a constant named 'WM_USER' which is set to a number not use by the system.
you can define your controls from this const and on:
#define ID_MYLISTVIEW1   WM_USER + 1
#define ID_MYLISTVIEW2   WM_USER + 2

and so on.




























0
 
LVL 1

Expert Comment

by:The_Brain
ID: 1181219
what's with all the '\n'?
0
 

Expert Comment

by:koskia
ID: 1181220
just a fluke
my Enter key was pressed down, and probably when you reach a certain size it sends the answer automatically
:))
0

Featured Post

Want to be a Web Developer? Get Certified Today!

Enroll in the Certified Web Development Professional course package to learn HTML, Javascript, and PHP. Build a solid foundation to work toward your dream job!

Question has a verified solution.

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

Written by John Humphreys C++ Threading and the POSIX Library This article will cover the basic information that you need to know in order to make use of the POSIX threading library available for C and C++ on UNIX and most Linux systems.   [s…
Introduction This article is the first in a series of articles about the C/C++ Visual Studio Express debugger.  It provides a quick start guide in using the debugger. Part 2 focuses on additional topics in breakpoints.  Lastly, Part 3 focuses on th…
The goal of the tutorial is to teach the user how to use functions in C++. The video will cover how to define functions, how to call functions and how to create functions prototypes. Microsoft Visual C++ 2010 Express will be used as a text editor an…
The viewer will be introduced to the member functions push_back and pop_back of the vector class. The video will teach the difference between the two as well as how to use each one along with its functionality.
Suggested Courses

764 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