There is a true color ball which can drag and drop by mouse in a dialog box. The sample of Color Picker ActiveX Control demonstrated usage of the control.
These control have various styles in appearance and features. If you are a user, You can change the ball block diffuse, ambient, background start, background end and other visual element color by color picker control; If you are a programmer, you can customize the control as your request.
NOTE: This demo only demonstrates part properties, methods and events to every control member, not all interfaces. See this control Programmer's Guide(ColoPick.chm) for more details.