Using MFC for ActiveX Controls For most folks, we recommend using MFC because MFC controls are easy to write. You focus on your control's behavior, not the intricacies of OLE interfaces. And, with the new features of MFC 4.2, you can write controls that perform better and implement the cool new OCX 96 features This topic describes how to register a Microsoft ActiveX object as the viewer or player for a particular media type (Multipurpose Internet Mail Extensions (MIME)). This registration is essential for Microsoft Internet Explorer to launch the correct player when interpreting the standard HTML A HREF tag or the Netscape-introduced EMBED tag Palette Management for Active Document Objects The following sections describe issues related to palette management by OLE document objects. In general, the palette management scheme for document objects is the same as the scheme used for controls, except that document objects do not receive ambient properties from their container. Software NET platform does not support multiple inheritance. Do not confuse multilevel inheritance with multiple inheritance. With multiple inheritance we can have a subclass that inherits from two classes at the same time. Let’s suppose we have an application that has a class Customers and another class Vendors. If you wanted to combine these two classes into one CustomerVendor class it would be a combination of Customers and Vendors just like the diagram below. Business - Directory of business/finance/loan/mortgage related partner sites more 1 2 3 4 5 Computers - Directory of computer hardware/software/peripheral related partner sites more 1 2 3 4 5 Internet - Directory of webhosting/webdesign/internet marketing related partner sites more 1 2 3 4 5 Software - Directory of software related partner sites more 1 2 3 4 5 Web Design - Directory of web design/development related partner sites more 1 2 3 4 5 Web Hosting - Directory of web hosting related partner sites more 1 2 3 4 5 Web Promotion - Directory of search engine optimization/internet marketing related partner sites more 1 2 3 4 5 Web Resources - Directory of other web related partner sites more 1 2 3 4 5 Recreation - Directory of travel/hotel/cruise related partner sites more 1 2 3 4 5 Casino - Directory of online gambling/poker/blackjack/roulette related partner sites more 1 2 3 4 5 Health - Directory of online pharmacy/hospital/health related partner sites more 1 2 3 4 5 Shopping - Directory of online shopping/gift related partner sites more 1 2 3 4 5 Miscellaneous - Directory of all other partner sites more 1 2 3 4 5   Multiple inheritance is complex and can be dangerous. The advantages of code re-usage prevail over complexity is up to your choice. Multiple inheritance is not supported by VB.NET or .Net platform. Instead of multiple inheritance we can use multiple interfaces to achieve similar effect to multiple inheritance. In VB.NET all objects have a primary or native interface, which is composed of properties, events, methods or member variables declared using Public keyword. Objects can implement also secondary interfaces by using Implement keyword. Partner Directory Resources 1 2 3 4 5 Business >> 1 2 3 4 5 6 7 8 9 10 11 12 Computers >> 1 2 3 4 5 6 7 8 9 Internet >> 1 2 3 4 5 6 7 8 9 10 Software >> 1 2 3 4 5 Web Design >> 1 2 3 4 5 Web Hosting >> 1 2 3 4 5 Web Promotion >> 1 2 3 4 5 Web Resources >> 1 2 3 4 5 Recreation >> 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Casino >> 1 2 3 4 5 6 Health >> 1 2 3 4 5 6 7 8 9 10 11 Shopping >> 1 2 3 4 5 6 7 8 9 10 11 Miscellaneous >> 1 2 3 4 5 6 7 8 9 10

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