in this code sample i explained all important basics for drawing using GDI+ by C# language
http://classcoder.com/files/images/mastergdibasics.jpg
1.Draw Lines
2.Draw Ellipses and Circles
3.Draw Rectangles
4.Draw Strings
5.Draw Strings with TextRenderingHint
6.Draw Beziers
7.Draw GraphicsPath
8.Draw Polygons
9.Draw Custom Pens
10.Draw Brushes
