Beginning Visual Basic 2005 Thearon Willis, Bryan Newsome TEAM LinG wrOx UpdatessourecodeandWroxtechnicalsupportatwww.wrox.com
TEAM LinG
Beginning Visual Basic 2005
Beginning Visual Basic® 2005 01_574019 ffirs.qxd 9/16/05 9:31 PM Page i
Beginning Visual Basic 2005 Thearon Willis and Bryan Newsome WILEY Wiley Publishing, Inc
Beginning Visual Basic® 2005 Thearon Willis and Bryan Newsome 01_574019 ffirs.qxd 9/16/05 9:31 PM Page iii
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Beginning visual Basic@ 2005 wiley Publishing, Inc. 10475 Crosspoint boulevard Indianapolis, IN 46256 Copyright C 2006 by Wiley Publishing, Inc, Indianapolis, Indiana Published simultaneously in Canada ISBN-10:07645-74019 ISBN-13:978-0-76457401-6 Manufactured in the United States of america 7654321 IMA/QV/RQ/QV/IN Willis. Theron. Beginning Visual Basic 2005/Thearon Willis and Bryan Newsome. ISBN-13: 978-0-7645-7401-6(paper/website) ISBN-10:0-7645-7401-9(p 1. Microsoft Visual basiC. 2 Computer program language)I Newsome, Bryan, 1971-II. Title. QA76.73.B3W55732005 2005010385 No part of this publication may be reproduced, stored in a retrieval system, or tra electronic, mechanical, photocopying, recording, scanning, or otherwise, except the 1976 United States Copyright Act, without either the prior written permissi through payment of the appropriate per-copy fee to the Copyright Clearance Center, 222 Rosewood Drive, Danvers, MA 01923, (978)750-8400, fax(978)646-8600. Requests to the Publisher for permission should be addressed to the Legal Department, Wiley Publishing, Inc, 10475 Crosspoint Blvd., Indianapolis, IN 46256,(317)572-3447, fax(317)572-4355,or nline at www LIMIT OF LIABILITY/DISCLAIMER OF WARRANTY: THE PUBLISHER AND THE AUTHOR MAKE NO REPRI SENTATIONS OR WARRANTIES WITH RESPECT TO THE ACCURACY OR COMPLETENESS OF THE CONTENTSO THIS WORK AND SPECIFICALLY DISCLAIM ALL WARRANTIES, INCLUDING WITHOUT LIMITATION WAR LANTIES OF FITNESS FOR A PARTICULAR PURPOSE. NO WARRANTY MAY BE CREATED OR EXTENDED BY SALES OR PROMOTIONAL MATERIALS. THE ADVICE AND STRATEGIES CONTAINED HEREIN MAY NOT BE SUITABLE FOR EVERY SITUATION. THIS WORK IS SOLD WITH THE UNDERSTANDING THAT THE PUBLISHER IS NOT ENGAGED IN RENDE SIONAL ASSISTANCE IS REQUIRED SERVICES OF A COMPETENT PROFESSIONAL PERSON SHOULD BE SOUGHT. NEITHER THE PUBLISHER NOR THE AUTHOR SHALL BE LIABLE FOR DAMAGES ARISING HERE- FROM. THE FACT THAT AN ORGANIZATION OR WEB SITE IS REFERRED TO IN THIS WORK AS A CITATION AND/OR A POTENTIAL SOURCE OF FURTHER INFORMATION DOES NOT MEAN THAT THE AUTHOR OR THE PUBLISHER ES THE INFORMATION THE OI LATION OR WEB SITE MAY PROVIDE OR RECOM- MENDATIONS IT MAY MAKE. FURTHER, READERS SHOULD BE AWARE THAT INTERNET WEB SITES LISTED IN HIS WORK MAY HAVE CHANGED OR DISAPPEARED BETWEEN WHEN THIS WORK WAS WRITTEN AND WHEN IT IS READ For general information on our other products and services please contact our Customer Care Department within the United States at(800)762-2974, outside the United States at (317)572-3993 or fax(317)572-4002 Trademarks: Wiley, the Wiley logo, Wrox, the Wrox logo, Programmer to Programmer, and related tra marks or regist trademarks of John wiley Sons, Inc and/or its affiliates, in the United States and not be used without written nVisual Basic is a registered trademark of Microsoft C United States and/or other countries. All other trademarks are the property of their respective on 动 nc, is not associated with any product or vendor mentioned in this book Wiley also publishes its books in a variety of electronic formats. Some content that appears in print may not be available
Beginning Visual Basic®2005 Published by Wiley Publishing, Inc. 10475 Crosspoint Boulevard Indianapolis, IN 46256 www.wiley.com Copyright © 2006 by Wiley Publishing, Inc., Indianapolis, Indiana Published simultaneously in Canada ISBN-10: 0-7645-7401-9 ISBN-13: 978-0-7645-7401-6 Manufactured in the United States of America 10 9 8 7 6 5 4 3 2 1 1MA/QV/RQ/QV/IN Library of Congress Cataloging-in-Publication Data Willis, Thearon. Beginning Visual Basic 2005 / Thearon Willis and Bryan Newsome. p. cm. Includes bibliographical references and index. ISBN-13: 978-0-7645-7401-6 (paper/website) ISBN-10: 0-7645-7401-9 (paper/website) 1. Microsoft Visual BASIC. 2. BASIC (Computer program language) I. Newsome, Bryan, 1971- II. Title. QA76.73.B3W5573 2005 005.2'768--dc22 2005010385 No part of this publication may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, electronic, mechanical, photocopying, recording, scanning, or otherwise, except as permitted under Sections 107 or 108 of the 1976 United States Copyright Act, without either the prior written permission of the Publisher, or authorization through payment of the appropriate per-copy fee to the Copyright Clearance Center, 222 Rosewood Drive, Danvers, MA 01923, (978) 750-8400, fax (978) 646-8600. Requests to the Publisher for permission should be addressed to the Legal Department, Wiley Publishing, Inc., 10475 Crosspoint Blvd., Indianapolis, IN 46256, (317) 572-3447, fax (317) 572-4355, or online at www.wiley.com/go/permissions. LIMIT OF LIABILITY/DISCLAIMER OF WARRANTY: THE PUBLISHER AND THE AUTHOR MAKE NO REPRESENTATIONS OR WARRANTIES WITH RESPECT TO THE ACCURACY OR COMPLETENESS OF THE CONTENTS OF THIS WORK AND SPECIFICALLY DISCLAIM ALL WARRANTIES, INCLUDING WITHOUT LIMITATION WARRANTIES OF FITNESS FOR A PARTICULAR PURPOSE. NO WARRANTY MAY BE CREATED OR EXTENDED BY SALES OR PROMOTIONAL MATERIALS. THE ADVICE AND STRATEGIES CONTAINED HEREIN MAY NOT BE SUITABLE FOR EVERY SITUATION. THIS WORK IS SOLD WITH THE UNDERSTANDING THAT THE PUBLISHER IS NOT ENGAGED IN RENDERING LEGAL, ACCOUNTING, OR OTHER PROFESSIONAL SERVICES. IF PROFESSIONAL ASSISTANCE IS REQUIRED, THE SERVICES OF A COMPETENT PROFESSIONAL PERSON SHOULD BE SOUGHT. NEITHER THE PUBLISHER NOR THE AUTHOR SHALL BE LIABLE FOR DAMAGES ARISING HEREFROM. THE FACT THAT AN ORGANIZATION OR WEB SITE IS REFERRED TO IN THIS WORK AS A CITATION AND/OR A POTENTIAL SOURCE OF FURTHER INFORMATION DOES NOT MEAN THAT THE AUTHOR OR THE PUBLISHER ENDORSES THE INFORMATION THE ORGANIZATION OR WEB SITE MAY PROVIDE OR RECOMMENDATIONS IT MAY MAKE. FURTHER, READERS SHOULD BE AWARE THAT INTERNET WEB SITES LISTED IN THIS WORK MAY HAVE CHANGED OR DISAPPEARED BETWEEN WHEN THIS WORK WAS WRITTEN AND WHEN IT IS READ. For general information on our other products and services please contact our Customer Care Department within the United States at (800) 762-2974, outside the United States at (317) 572-3993 or fax (317) 572-4002. Trademarks: Wiley, the Wiley logo, Wrox, the Wrox logo, Programmer to Programmer, and related trade dress are trademarks or registered trademarks of John Wiley & Sons, Inc. and/or its affiliates, in the United States and other countries, and may not be used without written permission.Visual Basic is a registered trademark of Microsoft Corporation in the United States and/or other countries. All other trademarks are the property of their respective owners. Wiley Publishing, Inc., is not associated with any product or vendor mentioned in this book. Wiley also publishes its books in a variety of electronic formats. Some content that appears in print may not be available in electronic books. 01_574019 ffirs.qxd 9/16/05 9:31 PM Page iv