ActiveX Controls
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Overview
- The ActiveX Controls class will provide an overview of controls, although ActiveX embodies several technologies for inter-process communication and the Internet. All aspects of ActiveX controls, including dealing with properties, events, methods, Internet issues, multiple threads, and distribution and licensing issues will be covered. The primary focus will be developing controls using the MFC class library and Visual C++ tools. However, the underlying COM abstractions will be described in each chapter. An introduction to ATL (ActiveX Template Library) will be provided at the end of the class.
Course prerequisites
Basic knowledge of C++, MFC, COM, and the Visual C++ development environment.
Course outline
- Overview of ActiveX Controls
- Basic definition of an ActiveX control and the evolution of ActiveX controls
- Different languages and tools which are available for ActiveX controls will be discussed
- ActiveX Control Concepts
- Basic concepts specified in the OCX 94 specification
- Properties, methods, events, property pages, persistence, registration and status bits
- OCX 96 and Internet additions
- MFC Support for ActiveX Controls
- Support provided by MFC for building ActiveX controls
- COleControl, COleControlModule, COlePropertyPage classes
- Control Wizard
- Test container
- Properties
- Properties and support for properties provided by MFC
- Ambient, extended, stock and custom properties
- Control persistence
- Property exchange functions and COM interfaces for persistence
- Property Pages
- Property pages
- Stock predefined property pages
- Custom property pages
- COlePropertyPage and data transfer functions
- More Properties
- Fonts and pictures in ActiveX controls and the COM interfaces
- Data binding and the notification process
- Events
- MFC support for events
- Connection point mechanism
- Request, before, after, and do event types
- Implementing stock events and adding custom events
- Handling synchronous and asynchronous errors
- Active X Control Container
- AppWizard and MFC to build containers
- Container and control interaction
- Licensing and Distribution Issues
- Commercializing an ActiveX control
- Licensing, distribution and localization (for international markets)
- Threads
- Threading models (single, apartment, and multiple) supported by ActiveX
- ActiveX controls in a multi-threaded environment
- Optimization
- Optimizing the performance of ActiveX controls
- Windowless controls, delayed activation and drawing optimizations, and MFC support
- Miscellaneous
- Subclassing an ActiveX control from a standard windows control, keyboard handling, and more
- ActiveX Controls and the Internet
- Active X controls in an HTML page
- Internet security, scripting languages for manipulating Active controls and layouts
- ActiveX control pad
- Introduction to ATL
- ActiveX Template Library (ATL)
- ATL Object Wizard
- ATL COM AppWizard
- Basic classes in ATL