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Course Length: 08 Hours 21 Minutes 15 Seconds
The paid version of this course contains videos of the following topics:
At Course Completion
At the end of the course, students will be able to:
Use COM to address component-based software development issues.
Build clients of COM objects.
Build COM object servers.
Create ActiveX controls.
Use Visual C++ extensions to create clients of COM objects.
Build COM objects that reuse existing COM objects.
Add events to COM objects and clients.
Create COM objects with dual interfaces.
Prerequisites
Before beginning this course, students should be able to:
Describe and use the following C++ fundamentals:
Constructors and destructors
Virtual function
Conversion functions
Function overloading
Operator overloading
Accessors
Single and multiple inheritance
Templates
Use the Windows® environment and use the Visual Studio® integrated development environment.
Course Outline
Module 1: Introduction to COM
List the major goals of COM.
List the steps for creating a client of a COM object.
Explain the significance of the CLSID and ProgID of a COM object.
Create a client of a COM object.
Explain how data is exchanged between a COM server and a COM client.
Module 2: Creating a COM Object
Explain the concept of immutability about interfaces.
Explain, use, and generate a GUID (globally unique identifier).
Describe the purpose and functionality of the IUnknown interface.
Explain reference counting and its implications.
Create a COM object.
Create a COM object server.
Register a COM object server.
Module 3: Implementing Multiple Interfaces
Use multiple inheritance to implement COM objects with multiple interfaces.
Use embedding to implement COM objects with multiple interfaces.
Module 4: Introduction to ATL
Explain the benefits of using ATL to create COM objects and object servers.
Use the ATL COM AppWizard to create a COM object server.
Use the ATL Object Wizard to add a simple COM object with a custom interface to ATL COM object server.
Use Visual C++ extensions to create a client of a COM object.
Explain the significance of each of the following in an ATL COM project:
COM map
Object map
CComModule
CComObjectRoot
CComCoClass
Module 5: Automation
Explain the benefits of Automation.
Compare the methods and properties of an Automation object to the behaviors and attributes of a class.
Implement Automation for a COM object.
Use structures with Automation objects.
Create a client application for an Automation object.
Module 6: Dual Interfaces
Describe the need for dual interfaces.
Explain the benefits and limitations of creating dual interfaces.
Create a COM object with the dual interface using ATL.
Create a client for a COM object with a dual interface.
Implement multiple dual interfaces.
Module 7: Handling Events
Explain how events work in COM from a server and client perspective.
Enable a COM object to fire events using dispinterfaces and custom interfaces.
Create clients in Visual Basic C++ that can receive events from a COM object.
Module 8: Creating Controls Using ATL
List the types of controls supported by ATL.
Create a control using the ATL Object Wizard.
Add methods and properties to a control and implement them.
Modify the OnDraw method to draw graphical output for a control.
Register and license a control.
Module 9: Reusing COM Objects
Design a COM containment and COM aggregation.
Implement containment and aggregation to reuse COM objects.
Create a tear-off interface.
Module 10: Custom Interfaces
List the advantages and disadvantages of using custom interfaces.
Create a custom interface using ATL.
List the techniques available for improving memory usage and performance of a remote COM server.
Explain the standard and custom marshaling techniques.
Module 11: Threading Models
Describe the limitations of single-threaded applications.
Explain the differences between the single-threaded apartment model, multi-threaded apartment model, and mixed-threading model.
Explain how mixed threading models can cause marshaling issues.
Register a threading model.
Module 12: Collections
Explain the role of enumerators in using a collection.
Create and implement a collection.
Write client-side code to use a collection.
