Are you sure there *is* one? I just did some looking in the manual, and all that I can find is "clear", but I'm unsure what that does. It doesn't clear the screen, nor does it clear the command buffer. One thing you can do is just hit return a bunch of times and push whatever is on the screen off.
If you find it, please post it.
I’ve looked at a lot of different solutions, and in my humble opinion Aspose is the way to go. Here’s the link: http://aspose.com