Browser to plugin methods

The following are some of the C functions that must be implemented in the plugin, as they may be called by the browser:

• NPP_Initialize() - plugin loaded
• NPP_New() - new isntance of plugin
• NPP_HandleEvent() - (mac only) handle a window event
• NPP_SetWindow() - the plugin is told of the window it is using
• NOO_Shutdown() - instance closed
• NPP_Destroy() - plugin exited
• NPP_GetJavaClass() - find the class of this instance