COM技术简介（国外英文资料）.docVIP

COM技术简介（国外英文资料） Encyclopedia card The COM component (COM component) is a new software development technology that Microsoft has developed for the computer industry to produce more human behavior. Under the COM framework, people can develop a variety of feature specific components and then combine them into complex application systems. The benefits are manifold: you can replace the components in the system with new ones so that they can be upgraded and customized at any time. You can reuse the same component in multiple application systems; It is convenient to extend the application system to the network environment; COM and language, platform-independent features enable all programmers to make full use of their talents and expertise to write component modules. COM methods COM is a way of developing software components. Components are actually small binary executable programs that provide services to applications, operating systems, and other components. Developing custom COM components is like developing dynamic, object-oriented apis. Multiple COM objects can be connected to form an application or component system. And the component can be unloaded or replaced at runtime without being reconnected or compiled. Many of Microsofts technologies, such as ActiveX, DirectX and OLE, are based on COM. And Microsoft developers are heavily using COM components to customize their applications and operating systems. The concept of COM is not only valid under the Microsoft Windows operating system. COM isnt a big API, its actually a programming method, like structured programming and object-oriented programming. In any operating system, developers can follow the COM method. An application is usually composed of a single binary file. When the compiler to generate application, in the next version to compile and issue new generated version, before the application usually does not lead to any change. The operating system, hardware, and changes in customer requirements must wait unti