Purge COM

[jsdgdo]

Hey! This is more of a question than an issue I think.
Is there a way for me to purge the port after I send a message? A function like PurgeComm that allows me to throw in the handle and the int code for the action I want to perform.
I spent so much time to do this by the exec() function or even using the send message function in this class. Obviously I didn't succeed.
Your help will be very much appreciated. Thank you.