使用MFC中的外部组件（国外英文资料）.docVIP

使用MFC中的外部组件（国外英文资料） Use external components in MFC Microsoft Windows provides a rich external environment for programming, using the WFC (Windows foundation Class, Windows base Class) library, where Java programming can use most of the external environment, but not quite. In Windows, access to other resources can be implemented in different ways. You can use the COM (Component Object Model, Component Object Model), which is the communication structure for most Windows applications. For example, Microsoft Visual j+ + is composed of many different parts that communicate with each other using COM. COM also makes your application interact with other applications, such as Microsoft Word and Microsoft Excel. COM allows you to access many of the previously built components in Windows. In this respect, the other end is the Win32 API (application programming interface, application programming interface), which is a set of underlying functions that are the basis of each Windows program. J/Direct makes the application available to these underlying functions. Here we are: * invoke the API function using J/Direct * in the design, the component to be used in the toolbox * use COM components Through the Win32 API All the applications that are written for 32-bit Windows are based on the Win32 API, a common API that applies to Windows 95, Windows 98, Windows NT operating systems, and other follow-on operating systems. The Win32 API is based on the Windows API of the previous 16 Windows, so many of the functions and structures of the Win32 API can be traced back to Windows 1.0 or Windows 3.1. The Win32 API application is flexible, but somewhat complex. Many programmers use library functions, applications, structures and tools to simplify the operation of building Windows applications but rich characteristics of these structures may not be able to support all of the API. WFC is written using the Win32 API, and all WFC forms and controls used in this book are at the top of the Win32 w