Vector-Based Application

Question

Hi, I'm new to C# and I'm stuck with a problem I'm trying to write a vector-based drawing program but I don't know how to scale the shapes or move them by the mouse.. I've used the serialization way to draw objects, as Budi Kuraniwan's tutorial in O'Reilly Network http://www.oreillynet.com/lpt/a/2495 My main question is how to manipulate shapes' properties from its array? Like pen width, colour, size and position If I change a shape property using the matrix statement, it doesn’t delete the old shape.. How to delete shapes from my draw area without clearing the whole page? And how to Hit Test.. And select objects? I've found an example in The Code Project website (Draw Tools) but its too complicated for a beginner like me.. http://www.codeproject.com/csharp/DrawTools.asp I’m trying to do a similar application Thank you!