Davis.Chapman.-.Visual.C++.6.in.21.Days

DAY 1 THE VISUAL C++ DEVELOPMENT ENVIRONMENT—BUILDING YOUR FIRST VISUAL C++ APPLICATION 7 The Visual C++ Development Environment............................................................8 The Output Pane ................................................................................................9 The Editor Area ..................................................................................................9 Menu Bars ........................................................................................................10 Rearranging the Developer Studio Environment ............................................10 Starting Your First Project ....................................................................................11 Creating the Project Workspace ......................................................................11 Using the Application Wizard to Create the Application Shell ......................12 Designing Your Application Window ....................................................................15 Adding Code to Your Application ........................................................................17 Finishing Touches ..................................................................................................20 Creating the Dialog Box Icon ..........................................................................20 Adding Maximize and Minimize Buttons........................................................21 Summary................................................................................................................22 Q&A ......................................................................................................................22 Workshop ..............................................................................................................23 Quiz ..................................................................................................................23 Exercise ............................................................................................................23 DAY2 USING CONTROLS IN YOUR APPLICATION 25 The Basic Windows Controls ................................................................................26 The Static Text Control ....................................................................................26 The Edit Box Control ......................................................................................26 The Command Button Control ........................................................................27 The Check Box Control....................................................................................27 The Radio Button Control ................................................................................27 The Drop-Down List Box Control ..................................................................27 Adding Controls to Your Window ........................................................................27 Creating the Application Shell and Dialog Layout ..........................................28 Specifying the Control Tab Order ....................................................................30 Attaching Variables to Your Controls ....................................................................32 Attaching Functionality to the Controls ................................................................33 Closing the Application ....................................................................................36 Showing the User’s Message............................................................................37 Clearing the User’s Message ............................................................................38 Disabling and Hiding the Message Controls....................................................39 Running Another Application ..........................................................................42 Summary................................................................................................................44 Q&A ......................................................................................................................44 Workshop ..............................................................................................................45 Quiz ..................................................................................................................45 Exercises ..........................................................................................................45 DAY3 ALLOWING USER INTERACTION—INTEGRATING THE MOUSE AND KEYBOARD IN YOUR APPLICATION 47 Understanding Mouse Events ................................................................................48 Drawing with the Mouse ..................................................................................49 Improving the Drawing Program ....................................................................53 Adding the Finishing Touches..........................................................................55 Capturing Keyboard Events ..................................................................................56 Changing the Drawing Cursor..........................................................................57 Making the Change Stick ................................................................................60 Summary................................................................................................................64 Q&A ......................................................................................................................64 Workshop ..............................................................................................................65 Quiz ..................................................................................................................65 Exercises ..........................................................................................................65 DAY4 WORKING WITH TIMERS 67 Understanding Windows Timers............................................................................68 Placing a Clock on Your Application ....................................................................68 Creating the Project and Application ..............................................................68 Adding the Timer IDs ......................................................................................70 Starting the Clock Timer ..................................................................................71 Handling the Clock Timer Event......................................................................72 Adding a Second Timer to Your Application ........................................................74 Adding the Application Variables ....................................................................74 Starting and Stopping the Counting Timer ......................................................75 Enabling the Stop Button ................................................................................79 Summary................................................................................................................81 vi Sams Teach Yourself Visual C++ 6 in 21 Days Q&A ......................................................................................................................81 Workshop ..............................................................................................................82 Quiz ..................................................................................................................82 Exercise ............................................................................................................82 DAY5 GETTING USER FEEDBACK—ADDING DIALOG BOXES TO YOUR APPLICATION 83 Using Pre-existing (or System) Dialog Windows..................................................84 Using Message Boxes ......................................................................................84 Using Common Dialogs ..................................................................................90 Creating Your Own Dialog Windows ....................................................................93 Creating the Dialog Window............................................................................93 Using the Dialog in Your Application ..............................................................96 Summary..............................................................................................................101 Q&A ....................................................................................................................101 Workshop ............................................................................................................103 Quiz ................................................................................................................103 Exercises ........................................................................................................104 DAY6 CREATING MENUS FOR YOUR APPLICATION 105 Menus ..................................................................................................................106 Menu Styles....................................................................................................106 Keyboard Shortcut–Enabling Menus ............................................................106 Menu Standards and Conventions ..................................................................107 Designing Menus ................................................................................................108 Creating a Menu ..................................................................................................108 Creating the Application ................................................................................108 Adding and Customizing a Menu ..................................................................109 Attaching the Menu to Your Dialog Window ................................................112 Attaching Functionality to Menu Entries ......................................................112 Creating Pop-Up Menus ......................................................................................116 Creating a Menu with Accelerators ....................................................................118 Summary..............................................................................................................119 Q&A ....................................................................................................................119 Workshop ............................................................................................................120 Quiz ................................................................................................................120 Exercises ........................................................................................................120 DAY7 WORKING WITH TEXT AND FONTS 121 Finding and Using Fonts......................................................................................122 Listing the Available Fonts ............................................................................122 Using a Font ..................................................................................................125 Contents vii Using Fonts ..........................................................................................................129 Creating the Application Shell ......................................................................129 Building a List of Fonts..................................................................................131 Setting the Font Sample Text ........................................................................135 Selecting a Font to Display ............................................................................136 Summary..............................................................................................................139 Q&A ....................................................................................................................139 Workshop ............................................................................................................140 Quiz ................................................................................................................140 Exercises ........................................................................................................140 WEEK 1 IN REVIEW 143 WEEK 2 AT A GLANCE 147 DAY8 ADDING FLASH—INCORPORATING GRAPHICS, DRAWING, AND BITMAPS 149 Understanding the Graphics Device Interface ....................................................150 Device Contexts..............................................................................................150 Mapping Modes and Coordinate Systems......................................................156 Creating a Graphics Application..........................................................................157 Generating the Application Shell ..................................................................157 Adding the Graphics Capabilities ..................................................................163 Summary..............................................................................................................177 Q&A ....................................................................................................................177 Workshop ............................................................................................................177 Quiz ................................................................................................................178 Exercises ........................................................................................................178 DAY9 ADDING ACTIVEX CONTROLS TO YOUR APPLICATION 179 What Is an ActiveX Control? ..............................................................................180 ActiveX and the IDispatch Interface..............................................................180 ActiveX Containers and Servers ....................................................................182 Adding an ActiveX Control to Your Project........................................................183 Registering the Control ..................................................................................183 Adding the Control to Your Dialog ................................................................186 Using an ActiveX Control in Your Application ..................................................187 Interacting with the Control ..........................................................................187 Responding to Control Events........................................................................193 Summary..............................................................................................................196 Q&A ....................................................................................................................196 Workshop ............................................................................................................197 Quiz ................................................................................................................197 Exercise ..........................................................................................................197 viii Sams Teach Yourself Visual C++ 6 in 21 Days DAY 10 CREATING SINGLE DOCUMENT INTERFACE APPLICATIONS 199 The Document/View Architecture ......................................................................200 Creating an SDI Application................................................................................202 Building the Application Shell ......................................................................202 Creating a Line Class ....................................................................................203 Implementing the Document Functionality....................................................205 Showing the User ..........................................................................................208 Saving and Loading the Drawing ........................................................................213 Deleting the Current Drawing ........................................................................214 Saving and Restoring the Drawing ................................................................215 Interacting with the Menu....................................................................................218 Adding Color to the CLine Class....................................................................218 Adding Color to the Document ......................................................................219 Modifying the Menu ......................................................................................222 Summary..............................................................................................................226 Q&A ....................................................................................................................227 Workshop ............................................................................................................228 Quiz ................................................................................................................228 Exercise ..........................................................................................................228 DAY 11 CREATING MULTIPLE DOCUMENT INTERFACE APPLICATIONS 229 What Is an MDI Application?..............................................................................229 Creating an MDI Drawing Program ....................................................................231 Building the Application Shell ......................................................................231 Building the Drawing Functionality ..............................................................232 Adding Menu Handling Functionality ..........................................................233 Adding a Context Menu ......................................................................................236 Summary..............................................................................................................239 Q&A ....................................................................................................................239 Workshop ............................................................................................................240 Quiz ................................................................................................................240 Exercise ..........................................................................................................241 DAY 12 ADDING TOOLBARS AND STATUS BARS 243 Toolbars, Status Bars, and Menus ......................................................................244 Designing a Toolbar ............................................................................................245 Creating a New Toolbar..................................................................................246 Attaching the Toolbar to the Application Frame............................................247 Controlling the Toolbar Visibility ..................................................................254 Adding a Combo Box to a Toolbar......................................................................257 Editing the Project Resources ........................................................................257 Creating the Toolbar Combo Box ..................................................................260 Contents ix Handling the Toolbar Combo Box Events ....................................................267 Updating the Toolbar Combo Box ................................................................268 Adding a New Status Bar Element......................................................................271 Adding a New Status Bar Pane ......................................................................271 Setting a Status Bar Pane Text ......................................................................273 Summary..............................................................................................................275 Q&A ....................................................................................................................276 Workshop ............................................................................................................277 Quiz ................................................................................................................277 Exercises ........................................................................................................277 DAY 13 SAVING AND RESTORING WORK—FILE ACCESS 279 Serialization ........................................................................................................279 The CArchive and CFile Classes ....................................................................280 The Serialize Function....................................................................................281 Making Objects Serializable ..........................................................................281 Implementing a Serializable Class ......................................................................283 Creating a Serialized Application ..................................................................284 Creating a Serializable Class..........................................................................288 Building Support in the Document Class ......................................................294 Adding Navigating and Editing Support in the View Class ..........................305 Summary..............................................................................................................311 Q&A ....................................................................................................................311 Workshop ............................................................................................................313 Quiz ................................................................................................................313 Exercise ..........................................................................................................313 DAY 14 RETRIEVING DATA FROM AN ODBC DATABASE 315 Database Access and ODBC................................................................................316 The Open Database Connector (ODBC) Interface ........................................316 The CRecordset Class....................................................................................317 Creating a Database Application Using ODBC ..................................................322 Preparing the Database ..................................................................................322 Creating the Application Shell ......................................................................324 Designing the Main Form ..............................................................................325 Adding New Records ....................................................................................331 Deleting Records ............................................................................................334 Summary..............................................................................................................335 Q&A ....................................................................................................................335 Workshop ............................................................................................................336 Quiz ................................................................................................................336 Exercise ..........................................................................................................336 x Sams Teach Yourself Visual C++ 6 in 21 Days WEEK 2 IN REVIEW 337 WEEK 3 AT A GLANCE 341 DAY 15 UPDATING AND ADDING DATABASE RECORDS THROUGH ADO 343 What Is ADO?......................................................................................................344 ADO Objects ..................................................................................................345 Using the ADO ActiveX Control ..................................................................346 Importing the ADO DLL................................................................................349 Connecting to a Database ..............................................................................350 Executing Commands and Retrieving Data ..................................................351 Navigating the Recordset ..............................................................................352 Accessing Field Values ..................................................................................353 Updating Records ..........................................................................................356 Adding and Deleting ......................................................................................356 Closing the Recordset and Connection Objects ..........................................357 Building a Database Application Using ADO ....................................................358 Creating the Application Shell ......................................................................358 Building a Custom Record Class ..................................................................361 Connecting and Retrieving Data ....................................................................365 Populating the Form ......................................................................................367 Saving Updates ..............................................................................................370 Navigating the Record Set..............................................................................371 Adding New Records ....................................................................................373 Deleting Records ............................................................................................375 Summary..............................................................................................................376 Q&A ....................................................................................................................377 Workshop ............................................................................................................377 Quiz ................................................................................................................377 Exercise ..........................................................................................................378 DAY 16 CREATING YOUR OWN CLASSES AND MODULES 379 Designing Classes ................................................................................................380 Encapsulation..................................................................................................380 Inheritance ......................................................................................................380 Visual C++ Class Types ................................................................................381 Creating Library Modules....................................................................................382 Using Library Modules........................................................................................383 Creating the Library Module..........................................................................383 Creating a Test Application ............................................................................393 Updating the Library Module ........................................................................398 Contents xi Summary..............................................................................................................401 Q&A ....................................................................................................................402 Workshop ............................................................................................................403 Quiz ................................................................................................................403 Exercise ..........................................................................................................403 DAY 17 SHARING YOUR FUNCTIONALITY WITH OTHER APPLICATIONS—CREATING DLLS 405 Why Create DLLs? ..............................................................................................406 Creating and Using DLLs ..............................................................................406 Designing DLLs ............................................................................................409 Creating and Using an MFC Extension DLL......................................................410 Creating the MFC Extension DLL ................................................................410 Adapting the Test Application........................................................................413 Changing the DLL..........................................................................................414 Creating and Using a Regular DLL ....................................................................416 Creating the Regular DLL..............................................................................417 Adapting the Test Application........................................................................423 Summary..............................................................................................................426 Q&A ....................................................................................................................427 Workshop ............................................................................................................428 Quiz ................................................................................................................428 Exercises ........................................................................................................428 DAY 18 DOING MULTIPLE TASKS AT ONE TIME—MULTITASKING 429 What Is Multitasking?..........................................................................................430 Performing Multiple Tasks at One Time........................................................430 Idle Processing Threads..................................................................................431 Spawning Independent Threads ....................................................................431 Building a Multitasking Application ..................................................................441 Creating a Framework ....................................................................................441 Designing Spinners ........................................................................................443 Supporting the Spinners ................................................................................449 Adding the OnIdle Tasks ................................................................................455 Adding Independent Threads ........................................................................460 Summary..............................................................................................................468 Q&A ....................................................................................................................468 Workshop ............................................................................................................471 Quiz ................................................................................................................471 Exercises ........................................................................................................471 xii Sams Teach Yourself Visual C++ 6 in 21 Days DAY 19 BUILDING YOUR OWN WIDGETS—CREATING ACTIVEX CONTROLS 473 What Is an ActiveX Control? ..............................................................................474 Properties ........................................................................................................474 Methods ..........................................................................................................475 Events ............................................................................................................476 Creating an ActiveX Control ..............................................................................476 Building the Control Shell..............................................................................477 Modifying the CModArt Class ......................................................................478 Adding Properties ..........................................................................................481 Designing and Building the Property Page ....................................................483 Adding Basic Control Functionality ..............................................................485 Adding Methods ............................................................................................487 Adding Events ................................................................................................489 Testing the Control ........................................................................................491 Summary..............................................................................................................493 Q&A ....................................................................................................................493 Workshop ............................................................................................................494 Quiz ................................................................................................................494 Exercises ........................................................................................................494 DAY 20 INTERNET APPLICATIONS AND NETWORK COMMUNICATIONS 495 How Do Network Communications Work? ........................................................496 Sockets, Ports, and Addresses ........................................................................497 Creating a Socket............................................................................................498 Making a Connection ....................................................................................500 Sending and Receiving Messages ..................................................................501 Closing the Connection ..................................................................................503 Socket Events ................................................................................................503 Detecting Errors..............................................................................................504 Building a Networked Application ......................................................................505 Creating the Application Shell ......................................................................505 Window Layout and Startup Functionality ....................................................505 Inheriting from the CAsyncSocket Class ......................................................509 Connecting the Application ............................................................................511 Sending and Receiving ..................................................................................515 Ending the Connection ..................................................................................517 Summary..............................................................................................................519 Q&A ....................................................................................................................519 Workshop ............................................................................................................520 Quiz ................................................................................................................520 Exercise ..........................................................................................................520 Contents xiii DAY 21 ADDING WEB BROWSING FUNCTIONALITY TO YOUR APPLICATIONS 521 The Internet Explorer ActiveX Model ................................................................522 The CHtmlView Class..........................................................................................523 Navigating the Web ........................................................................................523 Controlling the Browser ................................................................................524 Getting the Browser Status ............................................................................524 Building a Web-Browsing Application................................................................525 Creating the Application Shell ......................................................................525 Adding Navigation Functionality ..................................................................526 Summary..............................................................................................................535 Q&A ....................................................................................................................535 Workshop ............................................................................................................536 Quiz ................................................................................................................536 Exercises ........................................................................................................536 WEEK 3 IN REVIEW 537