C#, Java and Win32 API

I have been studying .Net/C#/Win32 API for the last two days because of a proposal that I need to write. The application cannot be written in Java because of the extensive uses of Win32 API. I still have problem dealing with C# syntax...and calling Win32 API is quite messy. However, the alternative is JNI, which is even worse.

Nevertheless, Win32 API is very powerful and I don't mind learning more. This makes my job more fun.

Now...the fun is gone and the hard part (writing proposal) is coming next...