What do you replace TRect and TPoint with from Delphi Win32 code to Delphi Prism code?
You have two options depending of your needs
using Rectangle and Point from the System.Drawing namespace Since Net 1.0
TRect -> System.Drawing.Rectangle
TPoint -> System.Drawing.Point
using Rect and Point from the System.Windows namespace Since Net 3.0
TRect -> System.Windows.Rect
TPoint -> System.Windows.Point