HALCON/COM User's Manual

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Release Notes Please note the latest updates of this manual: ¯ ¾ Ò Edition, HALCON 6.0 (October 2000) Revision of the structure of the manual and minor updates.
Contents 1 Introduction 1 1.1 Why Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 1.1.1 Interfaces and COM . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 1.1.2 Objects, Methods and Data Members . . . . . . . . . . . . . . . . . . 2 1.1.3 Inheritanceand Polymorphism . . . . . . . . . . . . . . . . . . . . . . 2 1.1.4 Early and LateBinding . . . . . . . . . . . . . . . . . . . . . . . . . . 3 1.2 HALCON and COM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 1.2.1 Advantages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 1.2.2 Disadvantages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 1.2.3 Limitations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 1.3 Additional Sources of Information . . . . . . . . . . . . . . . . . . . . . . . . 4 2 The HALCON / COM Interface 5 2.1 Preface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 2.2 More about Classes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 2.2.1 Different Types of Classes . . . . . . . . . . . . . . . . . . . . . . . . 6 2.2.2 Classes for Special Purposes . . . . . . . . . . . . . . . . . . . . . . . 7 2.3 Object Construction and Destruction . . . . . . . . . . . . . . . . . . . . . . . 8 2.3.1 Construction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 2.3.2 Destruction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 2.4 Interfaces and Inheritance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 2.5 Methods and Properties . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 2.6 AcloserLookat DataTypes . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 2.7 ErrorHandling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 2.8 HALCON/COM and Visual Basic . . . . . . . . . . . . . . . . . . . . . . . . 13 2.8.1 Object Instantiation . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 2.8.2 Error Handling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 3 Example Visual Basic Session 17 3.1 FirstStep: TheGUI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 3.2 Second Step: Functionality . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 3.3 Final Step: More Functionality . . . . . . . . . . . . . . . . . . . . . . . . . . 21 3.4 OtherExamples . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 Bibliography 25 Index 27 i
Page 1 and 2: HALCON Version 6.0 MVTec Software G
Page 3: About This Manual This manual gives
Page 7 and 8: Chapter 1 Introduction This chapter
Page 9 and 10: 1.2. HALCON AND COM 3 re-defined in
Page 11 and 12: Chapter 2 The HALCON COM Interface
Page 13 and 14: 2.2. MORE ABOUT CLASSES 7 instantia
Page 15 and 16: 2.3. OBJECT CONSTRUCTION AND DESTRU
Page 17 and 18: 2.4. INTERFACES AND INHERITANCE 11
Page 19 and 20: 2.8. HALCON/COM AND VISUAL BASIC 13
Page 21 and 22: 2.8. HALCON/COM AND VISUAL BASIC 15
Page 23 and 24: Chapter 3 Example Visual Basic Sess
Page 25 and 26: 3.1. FIRST STEP: THE GUI 19 Figure
Page 27 and 28: 3.3. FINAL STEP: MORE FUNCTIONALITY
Page 29 and 30: 3.4. OTHER EXAMPLES 23 2. ±ÀÄÇ
Page 31 and 32: Bibliography [Arm98] Tom Armstrong.
Page 33 and 34: Index abstract class, 5-8 ActiveX,
Page 35: Index 29 HALCON 6.0

HALCON/COM User's Manual

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