Creating COM Objects in Visual J++ Why Create Visual J++ COM Objects and ActiveX Controls? Why use Visual J++? Because Java is a great language to work in. (Even Microsoft executives testify to this.) It's more powerful than Microsoft Visual Basic®, but not as hard to learn and use as Microsoft Visual C++®. And with the powerful features of the new Windows Foundation Classes (WFC) in Visual J++ 6.0, you can produce great programs for the Windows platform in record time, taking full advantage of Windows, Java, and even dynamic HTML (DHTML). Don't forget, too, that making a COM object out of Java classes you've already written is a great way to allow programs written in any COM-compatible language, even scripting languages, to use your Java classes. That makes your Java code that much more valuable, because it can be used from languages other than Java. Disadvantages of using Java for COM objects Every silver lining, however, has its cloud. And there are a couple of reasons you might choose to use another language. First, although Java COM dynamic-link libraries (DLLs) are small, comparable to Visual Basic or Microsoft Foundation Classes (MFC) COM DLLs, they require additional run-time support in the form of a compatible version of the Microsoft virtual machine (VM) and classes. You may have to figure out how to make sure that a compatible VM is installed on your users' machines. But if your users have plenty of memory and have the VM installed, this isn't a problem at all. The need for the virtual machine causes the other disadvantage: Java, despite our great just-in-time compiler, is still somewhat slower than a control written in C++ or C++ with Active Template Library (ATL). For many applications, the speed disadvantage isn't significant. How will you know for your application? The only way to know for sure is to test. ************************************************************ * Slavi Andreev - Software Engineer * * Sirma AI Ltd. - Artificial Intelligence Labs. * * 38A, Christo Botev Blvd, 1000 Sofia, Bulgaria. * * tel: (+359 2) 9810018; 9812338; * * fax: (+359 2) 9819058 GSM :(+359 88) 626523 * * email: [EMAIL PROTECTED] http://www.sirma.bg * ************************************************************ =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-= * To unsubscribe from this list, send e-mail to [EMAIL PROTECTED] without subject and with message body "unsubscribe jokes [EMAIL PROTECTED]" (without quotes) * To subscribe to this list, send e-mail to [EMAIL PROTECTED] without subject and with message body "subscribe jokes [EMAIL PROTECTED]" (without quotes) * Mails to this list should be sent to [EMAIL PROTECTED] * If you experience any problems contact [EMAIL PROTECTED] * Archives available at [EMAIL PROTECTED] =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
