How can I make catch Printing Events?

I don't know about your first question, but I believe the BeginPrint, PrintPage, and EndPrint events fire at various times when you call the Print() method.  You just have to ad handlers to those events.

MSDN has a good example of this.
http://msdn.microsoft.com/en-us/library/system.drawing.printing.printdocument.print.aspx

PrintDocument printDoc = new PrintDocument()
printDoc.BeginPrint += new PrintEventHandler(some_method);
printDoc.PrintPage += new PrintPageEventHandler(some_otherMethod);
printDoc.EndPrint += new PrintEventHandler(some_thirdMethod);

public void some_method(object sender, PrintEventArgs e)
{
     //do some work
}

public void some_otherMethod(object sender, PrintPageEventArgs e)
{
     //to print work
}