Connecting macbook to desktop computer & interactive whiteboard

You would need to connect the Mac directly to the White Board. Not Through the Windows PC. How you do that is from the video out port on your Mac to the video input port on the white board. Depending on what model year Macbook Pro you have the adapters can be different.

Check out Apple TV. It will provide a wireless connection to the interactive white board. My girlfriend is an English teacher; at her school they routinely use Apple TV for this purpose. It costs $99 plus a $10 HDMI cable. http://www.apple.com/appletv/