//	CPU History by B.Arnold
//
//	The object of this program is to display the CPU Usage History for
//	the last several minites.  It uses the Performance Counters that
//	are built into the operating system.  The display is a graph like
//	a partial view of the Windows Task Manager but with the display
//	filtered with a 10 second low pass filter.

//		Version 1.45	Mar 2009	Auto scaling expanded with 250, 2500, 25000, etc.
//						Icon bug fixed.
//						Common Filter created using Tracking Reference paradyme.
//		Version 1.42	Mar 2009	Warning about CPU BUSY now only checks every 60 seconds.
//						On slow computers this was on continuously.
//		Version 1.40	Feb 2009	Scalling algorithm added for axis values and frame
//						changed to Sizeable. And, because it's sizeable, the
//						fudge factor in has been removed in SnapWindow().
//		Version 1.35	Feb 2009	Fixed bug caused by user changing system font
//						DPI to other than 96. A ScaleTransform is used
//						after getting the actual grid size. This resizes
//						the actual plotting area. This also requires that the
//						BackgroundImageLayout of the pictureBox1 is "Stretch".
//		Version 1.30	Feb 2009	Ordinate scales added on each side.
//						Net scales are dynamically adjusted.
//						Help screen has option to clear data.
//		Version 1.29	Feb 2009	"Ms TCP Loopback Interface" network port
//						bypassed in the calculations since this
//						data does not contribute to bandwidth.
//						In InitializeNetCounter, the array of NIC's
//						is modified.
//		Version 1.24	Feb 2009	Complex multiple Network activity added.
//						InitializeNetCounter(void)created.
//						Various network instances are handled.
//						Windows snaps to corner/edge when moved close.
//		Version 1.10	Oct 2008	Notify Icon replaces taskbar when minimized
//						and Taskbar panel is now hidden.
//						2nd red line added for USER percent usage.
//		Version 1.00	May 2008	Basic version with CPU history.