RootTrace Code

Memory leak fixed. base_image was being cloned each loop, and didn't need to be

Fixed last_image multiple cropping problem (only needs cropping once)

Over-cropping bug.
Added error message to alert user when cropped image smaller than zoom image.

Re-added showLiveZoom code in mouse move (commented out during recent testing)

Fixed cropping error by using base_image = image_ptr rather than CopyImage(image, base_image)

Changes where some images are released after main program execution to prevent errors

added cvCloseAllWindows to a form close event

Set all image pointers to NULL to start with (spotted when run in debug; release mode seems to set to null anyway..? But best to be sure)
Modified first image!=NULL check in onMouse - added { }
added != NULL check on cvReleaseImage s at end of init()

Added some tool tip help