If you've begun programming using Microsoft's .NET Framework, you've discovered a lot of new and improved functionality. But, more than likely, you've also discovered a lot of missing functionality. Indeed, a third of the functions supported by the old Win32 API are not yet supported by .NET. Although you may not at first notice the loss of Win32 API functionality in .NET, the more you program, the more you'll realize how essential it is. As a programmer,...