Pass Parameters to report

Question

I am so lost and this makes no sense to me.  How do you use parameters with reports?  I have a rdlc file that is all set up, but I want to pass parameters to it.  I can easily send SQL info parameters, I am looking to pass text box parameters to it.  I would like the user be able to type in a word into a text box and then click a button and then that word will be on the report.  Also I want to pass global settings from Properties.Settings.Default.XXXXX

And could you please point me to the easiest way to print a report without the printviewer.  Simply click a button and the PrintDialog box pops up and it prints the report. 

Thank you.