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Concepts of Object-Oriented Programming with Visual Basic

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Beschreibung

Produktdetails

Einband

Taschenbuch

Erscheinungsdatum

05.12.1996

Verlag

Springer Us

Seitenzahl

188

Maße (L/B/H)

24,4/17/1,5 cm

Gewicht

402 g

Auflage

1. Auflage

Sprache

Englisch

ISBN

978-0-387-94889-8

Beschreibung

Produktdetails

Einband

Taschenbuch

Erscheinungsdatum

05.12.1996

Verlag

Springer Us

Seitenzahl

188

Maße (L/B/H)

24,4/17/1,5 cm

Gewicht

402 g

Auflage

1. Auflage

Sprache

Englisch

ISBN

978-0-387-94889-8

Herstelleradresse

Springer-Verlag GmbH
Tiergartenstr. 17
69121 Heidelberg
DE

Email: GPSR Kontakt

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  • Produktbild: Concepts of Object-Oriented Programming with Visual Basic
  • Produktbild: Concepts of Object-Oriented Programming with Visual Basic
  • 1 The Basics of Object-Oriented Programming.- Data Types.- Encapsulation.- Abstract Data Types.- Classes.- Defining a Class in Visual Basic.- Defining a Property in Visual Basic.- Defining a Method in Visual Basic.- Exposing Properties Through the Property Let/ Set/ Get Procedures.- Objects.- Explicit Object Creation.- Instance Variables and Member Variables.- The As Object Syntax.- Implicit Object Creation.- Referencing Public Variables and Procedures.- The Object/Message Model.- The Me Keyword.- Object Properties and Object Hierarchies.- Creating and Destroying Objects.- Creating Objects.- Destroying Objects.- Reference Counts.- Circular References.- The Notorious End Statement.- How to Control a Circular Reference—A Linked List Example.- Form Modules.- Properties and Methods in a Form Module.- Collection Classes.- Constructing a Collection Class.- Polymorphism and Overloading.- Overloading.- Polymorphism.- Inheritance.- 2 Handling Object Errors.- Error Detection and Error Handling.- Types of Errors.- The Error Object.- Dealing with Run-Time Errors.- Where to Handle a Run-Time Error.- Dealing with Logical Errors.- Detecting Logical Errors.- Where to Handle a Logical Error.- Handling the Error in the Calling Procedure.- Errors Occurring in Events.- An Error-Handling Example.- 3 Turing Machines — A Simple Object-Oriented Application.- What Is an Algorithm?.- What Is a Turing Machine?.- Informal Definition of a Turing Machine.- Describing a Turing Machine.- Coding a Turing Machine.- Error Handling.- The Symbol Class.- The Symbols Collection Class.- The State Class.- The States Collection Class.- The Transition Class.- The Transitions Collection Class.- The Machine Class.- The User Interface.- The Standard Module.- A Final Comment.- 4 OLE Automation Objects.- What Is OLE Automation?.- Public Really Means Public.- The Plan for This Chapter.- Communication Between OLE Automation Clients and Servers.- The Communication Problem.- Supplying Information to the Client.- What Is an Interface?.- The Vtable Interface.- Type Libraries.- OLE Interfaces.- The IUnknown Interface.- The IDispatch Interface.- Binding.- Putting It All Together.- In-Process and Out-of Process Servers.- Creating a Simple OLE Automation Server.- Creating a Simple Server.- A Small Client and the Three Forms of Binding.- Referencing the Server’s Type Library.- Registering and Unregistering a Server.- How Servers Are Started and Ended.- Reference Counts for Servers.- Servers with a Visual Interface.- Servers with Dialog Boxes.- OLE Servers That Also Function as Stand-Alone Applications.- Handling Errors.- Be Nice.- Errors from Your Server’s Servers.- Externally Creatable and Dependent Objects — The Object Hierarchy.- In-Process Issues.- Version Compatibility.- How Compatibility Can Be Affected.- How Visual Basic Handles Compatibility.- The Reference Server and Interim Builds.