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Essential Wininet View Larger Image | Aaron Skonnard
Addison-Wesley, Paperback, Published December 1998, 501 pages, ISBN 0201379368 | List Price: $54.99
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The era of stand-alone, self-contained applications is rapidly ending. Distributed, networked applications have become critical to meeting business needs in a fast-paced, dynamic world. Until now, building networked Windows applications wasn't easy. But now Microsoft has released a powerful new Windows Internet API (WinInet) that dramatically simplifies the process of creating Internet-enabled Windows applications.
WinInet makes it possible to create Windows applications that can download Web pages, access server applications, upload and download files, and traverse Gopher document systems--allowing developers to build such sophisticated Windows Internet applications as full-fledged Web browsers, home banking applications, and stock portfolio programs.
Essential WinInet is a comprehensive guide to this powerful Windows Internet API. It starts with a tutorial on WinInet basics and a methodical description of the API's protocol-specific functions for HTTP, FTP, and Gopher, then proceeds to explore more advanced topics, examining how WinInet works with other Internet tools and client/server technologies. This book addresses such essential topics as:
- Using WinInet with MFC and Visual Basic
- Understanding asynchronous WinInet
- Writing HTTP COM components
- Establishing dial-up connections, including applying the RAS API
- Introducing the concept of client/server Internet programming
- Implementing a complete client/server solution using WinInet with ISAPI and ASP
Numerous sample applications throughout this book explore WinInet's capabilities and show you how to put the API to work. The samples include a full-featured asynchronous FTP client for Windows; a stock portfolio application that can connect to real-time Internet stock quote providers; and a client/server application that incorporates WinInet, ISAPI, and ASP. Much more than just a tutorial, this practical resource contains the kinds of pointers, work-arounds, and creative solutions that will save you hours of frustration and inspire you to make full use of the API.
Contents
Preface xvii
- Organization xviii
- Tips xix
- Web Site xix
Acknowledgments xxi
Part I WinInet Basics 1
Chapter 1 WinInet Basics 3
- Is This Book for You? 4
- Prerequisites 5
- Book Overview by Chapter 6
- Internet Overview 8
- Developing Internet Applications 9
- Internet Protocols 10
- Clients 12
- Server Components 13
- Introducing WinInet 13
- Standard API 14
- What Can You Do with WinInet? 14
- HTTP, FTP, and Gopher 15
- Dependencies 15
- Redistributing WinInet 15
- Programming with WinInet 17
- Windows CE 17
- Documentation and Samples 18
- Microsoft Internet Client SDK 18
- Samples 19
- Advantages of WinInet over Winsock 19
- Easy to Use 20
- Built-in Caching 20
- Easy Connections 20
- Security 21
- Advantages of Winsock over WinInet 22
- Your First WinInet Program 22
- Conclusion 25
Chapter 2 WinInet General Functions 27
- API Flags 28
- HINTERNET Handles 28
- WinInet General Functions 28
- Handle Hierarchy 29
- InternetOpen 30
- The Next Step 36
- InternetConnect 38
- InternetSetStatusCallback 42
- InternetCloseHandle 47
- General Internet Function Summary 48
- Internet File Functions 48
- InternetReadFile 49
- InternetWriteFile 51
- InternetFindNextFile 51
- InternetSetFilePointer 51
- Reading Files without the Content-Length Header 52
- Locking File Resources 52
- Internet Option Functions 53
- Internet Time Functions 55
- Other Internet Helper Functions 55
- InternetConfirmZoneCrossing 55
- InternetErrorDlg 59
- InternetGetLastResponseInfo 59
- Conclusion 61
Chapter 3 Handling URLs 63
- URL Basics 64
- InternetOpenUrl 68
- Using SSL with InternetOpenUrl 72
- Helper Functions 73
- InternetCanonicalizeUrl 73
- InternetCombineUrl 75
- InternetCrackUrl 75
- InternetCreateUrl 77
- InternetOpenUrl Sample Program (InetURL) 78
- Processing OnFetch 80
- HTTPS Example 81
- FTP Example 82
- Gopher Example 84
- Conclusion 85
Part II WinInet Protocol-Specific Functions 87
Chapter 4 HTTP Functions 89
- The HTTP Protocol 89
- The HTTP Model 90
- The HTTP Request 91
- The HTTP Response 99
- Using Telnet to Test HTTP 101
- A Complete HTTP Transaction 104
- HTTP Protocol Summary 105
- WinInet HTTP Functions 105
- HTTP Hierarchy 106
- HTTP Functions Overview 106
- HttpOpenRequest 107
- HttpAddRequestHeaders 113
- HttpSendRequest 115
- HttpQueryInfo 116
- InternetErrorDlg 123
- HTTP Authentication Techniques 123
- Using SSL with HTTP 129
- Web Page Retrieval Example 129
- Conclusion 137
Chapter 5 FTP Functions 139
- The FTP Protocol 139
- The FTP Model 140
- FTP Commands 141
- FTP Replies 146
- Minimum Implementation 150
- A Typical FTP Scenario 151
- Using Telnet to Test FTP 151
- FTP Protocol Summary 151
- WinInet FTP Functions 153
- FTP Hierarchy 153
- FTP Functions Overview 154
- Sample FTP Client 155
- FTP Function Descriptions 162
- Conclusion 180
Chapter 6 Gopher Functions 181
- The Gopher Protocol 181
- The Gopher Model 183
- Gopher Response Items 184
- Gopher Selector String 185
- Using Telnet to Test Gopher 186
- Gopher Protocol Summary 186
- Gopher+ 187
- WinInet Gopher Functions 187
- Gopher Hierarchy 188
- Gopher Functions Overview 189
- Sample Gopher Application 189
- Function Descriptions 194
- Conclusion 212
Part III MFC and Visual Basic 213
Chapter 7 WinInet MFC Internet Classes 215
- Benefits 215
- WinInet MFC Classes 216
- Getting Started with MFC WinInet Support 216
- CInternetSession 218
- CInternetFile 234
- CInternetConnection 241
- HTTP Classes 243
- FTP Classes 252
- Gopher Classes 261
- CInternetException 266
- Global MFC Internet Functions 267
- Conclusion 267
Chapter 8 WinInet in Visual Basic 269
- VB 5.0 269
- Microsoft Internet Transfer Control 270
- Properties 272
- Methods 272
- Events 273
- Sample Application Using OpenURL 273
- Using WinInet Directly 277
- Declarations 278
- Revamped Sample Application Using InternetOpenUrl 279
- Conclusion 282
Part IV Advanced WinInet 283
Chapter 9 Asynchronous WinInet 285
- Synchronous versus Asynchronous 286
- Pros and Cons 287
- WinInet's Built-in Asynchronous Support 288
- MyFTP: Asynchronous FTP Sample Application 289
- Establishing the Asynchronous Internet Session 290
- InternetStatusCallback 291
- INTERNET_STATUS_CALLBACK 291
- OnConnect 295
- OnDisconnect 298
- OnGet 298
- OnPut 300
- MyStatusCallback Implementation 301
- FillRemoteList 306
- The Rest of the Details 308
- Conclusion 312
Chapter 10 Reusable WinInet COM Components 313
- Stock Watcher Sample Application 315
- The QuoteProvider Component 317
- The CProviderYahoo Component 319
- Adding Interface Methods 325
- Didn't We Mean IQuoteProvider? 326
- Connection Points 328
- IQuoteProviderEvent 329
- Creating Additional IQuoteProvider Components 340
- The QuoteProvider Component Category 342
- The HTTP Component 349
- IHttpRequest Interface 349
- WinInet and Threads--A Quick Thread Tutorial 352
- HttpWorkerThread 358
- The Stock Watcher Application 366
- CQuoteProviderDlg 366
- CQuoteProviderEventSink 370
- Refresh All 370
- Conclusion 375
Chapter 11 Establishing a Dial-up Connection 377
- Prerequisites 378
- WinInet Dial-up Functions 379
- InternetAutodial and InternetAutodialHangup 379
- InternetDial and InternetHangUp 382
- InternetGoOnline 384
- InternetGetConnectedState 385
- InternetSetDialState 387
- To Use or Not to Use . . . That Is the Question! 387
- Remote Access Service 388
- Using the RAS Common Dialogs 388
- Begin and End a RAS Connection with RasDial and RasHangUp 397
- Working with Phonebook Entries 401
- Windows NT 4.0 RAS AutoDial 403
- RAS Connection Information 411
- Conclusion 414
Part V Internet Client/Server Applications 415
Chapter 12 Internet Client/Server Applications with WinInet, ISAPI, and ASP 417
- Internet Client/Server Development Decisions 418
- Client Decisions 418
- Server Decisions 420
- BugTracker: A Client/Server Bug-Tracking System 422
- BugTracker Overview 422
- Sample ISAPI Extension DLL 425
- Active Server Pages 436
- Generating an HTML View 440
- Sample WinInet Client 443
- Conclusion 450
Appendix A TCP/IP Tutorial 451
- TCP/IP Protocol Layering 452
- TCP 453
- IP 456
- The Physical Layer 460
- Conclusion 460
Appendix B API Flags 461
Appendix C Internet Option Flags 465
Appendix D Error Messages 471
Appendix E Recommended Reading 477
- WinInet 477
- Internet Protocols 477
- COM and ATL 478
- Multithreading 478
- ISAPI and ASP 479
Index 481
Customer Reviews
Customer Reviews: 1 Average Customer Rating: Dec 7, 1999 Alex Meseguer from NJ, US
Excellent coverage and command of subject matter.
Great one to get started with Windows Internet API. It covers all the bases and more...
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