View Larger Image	Eugene Kain Addison-Wesley, Paperback, Bk&CD edition, Published August 1998, 674 pages, ISBN 0201185377
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• Programming : Windows Programming
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• How do I make my application remember the last active document and automatically reopen it?
• How do I dynamically replace the view displayed in a window with another kind of view?
• How do I implement an expanding dialog box?
• How do I embed a property sheet inside another window, such as a form view or a dialog box?
• How do I display and manage a progress indicator in a status bar pane?
• How do I implement advanced and customized printing features in my application?

The MFC Answer Book offers the shortest path from frequently encountered programming problems to corresponding step-by-step solutions that you can integrate immediately into your current project.

The question and answer format of this book makes it ideal for developers looking for quick answers to a pressing questions. In addition to providing a concise, concrete answer to each question--along with immediately reusable code--this book also contains in-depth discussions that provide a better understanding of the inner workings of MFC applications to help you sharpen your MFC programming skills. This book also explores many utility functions and classes that dramatically reduce the effort needed to add frequently asked-for improvements and customizations to your applications.

The comprehensive contents, combined with an extensive, cross-referenced index, makes it easy to zoom in on exactly the solution you need.

The accompanying CD-ROM features the complete source code and executable files for more than 100 sample programs from the text. Also included on the CD-ROM are numerous compiled examples of Stingray Software's Microsoft Foundation Class extension libraries.

If you want to enhance your MFC skills and learn effective techniques that will allow you to add outstanding features to your Windows applications, there is no better resource than this book.

Table of Contents

Foreword by Scot Wingo

Preface

Acknowledgments

Chapter 0 Terminology and Conventions 1

Terminology Used in This Book 1

Conventions Used in the Sample Code in This Book 3

Chapter 1 Document/View Architecture Backgrounder 5

FAQ 1.1 What is the document/view architecture? 6

FAQ 1.2 What are the benefits of the document/view architecture? 6

FAQ 1.3 What components make up the document/view architecture, and how do they relate to each other? 8

FAQ 1.4 What is the role of the document? 12

FAQ 1.5 What is the role of the view? 13

FAQ 1.6 What is the role of the view’s frame window? 14

FAQ 1.7 What is the role of the document template? 15

FAQ 1.8 What is the role of the document template resource ID? 17

FAQ 1.9 How do the document/view architecture component objects get created? 19

FAQ 1.10 How does MFC route command messages? 21

FAQ 1.11 How does MFC implement the standard menu commands? 24

Chapter 2 Documents and Document Templates 29

Managing Document Templates 30

FAQ 2.1 How should I create and reference multiple document templates in my application? 30

FAQ 2.2 How do I manage multiple document templates without having a dialog box pop up each time the user tries to create a new document? 33

FAQ 2.3 How do I create the resources associated with a new document template resource ID? 40

FAQ 2.4 How does MFC select the document template object to use when opening a file? 42

FAQ 2.5 How do I associate multiple file extensions with the same document or view class? 47

Managing Documents 52

FAQ 2.6 How do I prevent an MDI application from opening a new (empty) document at start–up? 52

FAQ 2.7 How do I programmatically create a new (empty) document? 60

FAQ 2.8 How do I programmatically open an existing document file? 64

FAQ 2.9 How do I make my application remember the last active document and automatically reopen it? 66

FAQ 2.10 How do I make my documents autosave themselves without prompting the user? 72

FAQ 2.11 How do I implement a "Save all documents" menu command that does not prompt the user before saving each modified document? 74

FAQ 2.12 How do I programmatically close a document? 79

FAQ 2.13 How do I implement a "Close all documents" menu command? 83

Managing the Recent Files List (MRU) 88

FAQ 2.14 How do I customize the number of recent files shown in the "File" menu? 88

FAQ 2.15 How do I programmatically add a specific string to the Recent Files list? 94

FAQ 2.16 How do I intercept the selection of a Recent Files item by the user? 97

FAQ 2.17 How do I make my application automatically open the document that is at the top of the Recent Files list? 101

Miscellaneous Items 103

FAQ 2.18 How do I get a pointer to the currently active document? 103

FAQ 2.19 How do I iterate through the list of all the currently opened documents? 107

FAQ 2.20 Why doesn't my application register its document files with Windows Explorer, and how do I correct this situation? 114

Chapter 3 Views and Frame Windows 117

General Topics 118

FAQ 3.1 How do I add a new kind of view or frame window to my application? 118

FAQ 3.2 How do I choose between implementing a specific behavior in the view class or in the view's frame window class? 124

Opening and Closing Views and Frame Windows 125

FAQ 3.3 How do I programmatically open a view based on a specific document template? 125

FAQ 3.4 How do I open two (or more) specific views each time a new document is created? 129

FAQ 3.5 How do I programmatically close a view? 136

FAQ 3.6 How do I programmatically close all the views opened on a document? 136

FAQ 3.7 How do I prevent a view from being closed by the user? 137

Managing Size and Positions 145

FAQ 3.8 How do I programmatically resize or reposition a view? 145

FAQ 3.9 How do I set the initial position and size of a view? 147

FAQ 3.10 How do I center my main application window? 150

FAQ 3.11 How do I center a view? 154

FAQ 3.12 How do I make a frame window nonresizable? 156

FAQ 3.13 How do I limit the maximum or minimum size of a view? 158

FAQ 3.14 How do I limit the repositioning of a view? 162

FAQ 3.15 How do I make a view initially appear minimized or maximized? 167

FAQ 3.16 How do I make my application start maximized or minimized? 171

FAQ 3.17 How do I make my main application window stay always on top of other windows? 176

FAQ 3.18 How do I make one of my views stay always on top of other views? 178

FAQ 3.19 How do I implement a full-screen view mode like the one in Visual C++ and Word? 183

Managing Captions, Icons, Cursors, and Background 191

FAQ 3.20 How do I customize the captions of my views? 191

FAQ 3.21 How do I show a "modified" indicator in the captions of the views associated with a "dirty" document? 197

FAQ 3.22 How do I modify the icons associated with each kind of window in my application? 200

FAQ 3.23 How do I dynamically change the icon of my main application window ? 201

FAQ 3.24 How do I dynamically change the cursor for a view 206?

FAQ 3.25 How do I display an hourglass cursor during a lengthy operation? 210

FAQ 3.26 How do I change the background color of a view? 212

FAQ 3.27 How do I draw on the main application window background? 215

Form Views 224

FAQ 3.28 How do I keep my form views synchronized with my other views? 224

FAQ 3.29 How do I make a form view initially appear with the exact size of the associated dialog resource? 228

FAQ 3.30 How do I use the UPDATE_COMMAND_UI mechanism in form views? 229

FAQ 3.31 How do I change the background color of a form view? 234

FAQ 3.32 How do I add ToolTips to the controls in a form view? 238

Splitter Windows 241

FAQ 3.33 How do I program a window with both horizontal and vertical static splitter panes (three-way splitter)? 241

FAQ 3.34 How do I lock a splitter window so that the user cannot move the divider line? 246

FAQ 3.35 How do I programmatically resize the panes in a splitter window? 249

FAQ 3.36 How do I visually show the user which splitter pane contains the active view? 253

Switching Views 257

FAQ 3.37 How do I dynamically switch the view displayed in an MDI child window or SDI main application window? 257

FAQ 3.38 How do I dynamically switch the view displayed in a splitter window? 264

Miscellaneous Items 269

FAQ 3.39 How do I get a pointer to the active view? 269

FAQ 3.40 How do I get a pointer to the active frame window? 270

FAQ 3.41 How do I iterate through the list of all the views associated with a document? 271

Chapter 4 Dialog Boxes 273

General Topics 274

FAQ 4.1 How do I set the initial position of a dialog box? 274

FAQ 4.2 How do I center a dialog box in relation to another window? 278

FAQ 4.3 How can a dialog box access the active document (or view) object? 283

FAQ 4.4 How do I control the background color of a dialog box? 286

FAQ 4.5 How do I add a preview area to (draw inside) a dialog box? 290

FAQ 4.6 How do I add an icon to a dialog box? 294

FAQ 4.7 How do I implement an expanding dialog box? 295

FAQ 4.8 How do I add a toolbar to a dialog box? 304

Managing Controls on a Dialog Box 316

FAQ 4.9 How do I choose the control that will initially have the focus when a dialog box is displayed? 316

FAQ 4.10 How do I implement custom validation rules in a dialog box? 317

FAQ 4.11 How do I change the font and color of controls on my dialog box? 321

FAQ 4.12 How do I use the UPDATE_COMMAND_UI mechanism in dialog boxes? 324

FAQ 4.13 How do I add ToolTips support to the controls in a dialog box? 330

Chapter 5 Property Sheets 335

General Topics 336

FAQ 5.1 How do I build and use a property sheet? 336

FAQ 5.2 How do I manage the Apply button in a property sheet? 342

FAQ 5.3 How do I programmatically change the active page in a property sheet? 349

FAQ 5.4 How do I customize the standard property sheet buttons? 351

FAQ 5.5 How do I control the size of my property sheet window? 357

Managing Tabs 361

FAQ 5.6 How do I choose between a stacked row of tabs and a single row of scrolling tabs? 361

FAQ 5.7 How do I change the captions of the tabs of my property pages? 363

FAQ 5.8 How do I add icons to the tabs of my property pages? 366

Embedding Property Sheets 367

FAQ 5.9 How do I embed a property sheet inside a dialog box? 367

FAQ 5.10 How do I embed a property sheet inside a form view? 375

FAQ 5.11 How do I embed a property sheet inside a splitter window pane? 378

FAQ 5.12 How do I embed a property sheet inside a miniframe window? 381

Chapter 6 Toolbars and Status Bars 385

Toolbars 386

FAQ 6.1 How do I add one or more toolbars to my main frame window or to a view's frame window? 386

FAQ 6.2 What are the various options available for controlling the position, orientation, and general behavior of my toolbars? 393

FAQ 6.3 How do I programmatically dock a toolbar next to another one? 399

FAQ 6.4 How do I add a combo box to a toolbar? 403

FAQ 6.5 How do I add text labels to my toolbar buttons? 412

FAQ 6.6 How do I implement a menu that allows users to select the toolbars they want to see? 416

FAQ 6.7 How do I allow users to choose the toolbar they want to see by selecting it in a popup menu that appears when they right-click on a docking zone? 422

FAQ 6.8 How do I dynamically switch between different toolbars? 425

Status Bars 433

FAQ 6.9 How do I add a custom status bar to a view's frame window? 433

FAQ 6.10 How do I update the text of my status bar panes? 437

FAQ 6.11 How do I customize my status bar font? 444

FAQ 6.12 How do I draw in a status bar pane? 447

FAQ 6.13 How do I maximize the message pane when displaying menu prompts? 453

FAQ 6.14 How do I display a progress indicator in a status bar? 462

General Control Bar Topics 467

FAQ 6.15 How do I programmatically show or hide a control bar? 467

FAQ 6.16 How do I set the caption of a floating control bar? 470

FAQ 6.17 How do I save and restore the position and state of my control bars? 473

FAQ 6.18 How do I create custom control bars? 476

Chapter 7 Menus 499

FAQ 7.1 How do I handle several distinct menu commands with a single function? 499

FAQ 7.2 How do I implement a right-button popup menu (context menu)? 506

FAQ 7.3 How do I display a popup menu when the user clicks a button on a toolbar? 510

FAQ 7.4 How do I display a popup menu when the user clicks a button in a dialog box? 513

FAQ 7.5 How do I implement an owner-drawn menu? 521

Chapter 8 Printing and Print Preview 535

FAQ 8.1 What is the MFC printing architecture? 537

FAQ 8.2 How do I implement printing and print preview in my MFC application? 544

FAQ 8.3 How do I print a document whose page length is not known in advance (on-the-fly pagination)? 553

FAQ 8.4 How do I predict page breaks as Microsoft Word does? 560

FAQ 8.5 How do I programmatically change the printing orientation (portrait versus landscape) on-the-fly? 562

FAQ 8.6 How do I print without prompting the user with the standard Print dialog box? 565

FAQ 8.7 How do I customize the standard Print dialog box and retrieve the options selected by the user? 569

FAQ 8.8 How do I customize the Printing . . . dialog box? 575

FAQ 8.9 How do I stop or abort a print job? 583

FAQ 8.10 How do I implement print preview in shades of gray for a monochrome printer? 584

FAQ 8.11 How do I distinguish between drawing, print preview, and actual printing in my code? 586

Appendix A Utility Functions and Classes 591

Appendix B Bibliography and Additional Resources 641

Index 645