说明：  1.只需指明ocx文件的路径（含文件名），函数即可自动从文件中提取控件的CLSID，然后检查是否已 注册，如果已注册则不再注册；如果未注册则自动进行注册。 2.ocx控件必须包含TypeLib信息，一般VC++/VB/DELPHI7等生成的控件都属于此类型。 3.函数在VC6下执行顺利，由于程序中的控件在程序初始化时也必须初始化，因此该函数代码应放在应用程序的初始化 过程中，如在VC6的MFC工程中应放在CXXXApp::CXXXApp()中。
(1 is only needed ocx file path (including file name), the function can be automatically extracted from the file control' s CLSID, and then check whether registration, if registration is no longer registered if not registered will automatically be registered. 2.ocx TypeLib information must be included controls, the general VC++/VB/DELPHI7 and other controls are all generated by this type. 3 functions to perform successfully in VC6, the program control is initialized in the program must also be initialized, so the function code should be placed on the application of the initialization process, such as the MFC in VC6 project should be on CXXXApp:: CXXXApp () in.)