I am writing an application in Java which has to work on any platform ("any" = Windows, Mac OS X, Linux). The application uses custom objects which appear on the user's desktop, some of which have to be drop targets. I don't expect to be able to write this part of the application in Java on any of the platforms I target... I think I need platform-specific code to handle this, and I am happy with that.
On Windows, the solution appears to be writing a shell namespace extension. Assuming this is correct, how do I go about doing it?
Am I correct in saying that the solution would be to implement the shell namespace extension in C#, C++ or whatever, using publicly available tools; and to access that shell namespace extension from the Java program using a Java/COM bridge? Is there an easier way?
I am not familiar with development tools under Windows: is there a way of developing the shell namespace extension without acquiring a commercial IDE just for that purpose?