Move a graphic object

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I've created a graphic object in form_paint by this code :

C#

Graphics gr = this.CreateGraphics();
gr.FillEllipse(Brushes.Yellow, 10, 30, 200, 150);

how can I make this object to treat like a control(for example a button)?;I mean user be able to move this ellipse on the form at run time.
:confused:
like powerpacks tools ,when you create the object ,you move it.
(please tell me by using path or region .... )

Posted 7-Mar-10 22:10pm

Nima.naqipoor

Updated 7-Mar-10 22:24pm

v3

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OriginalGriff · Answer 1 · 2010-03-07T22:18:00

If you are doing this in the Form.Paint event (as you should), then you should not use this.CreateGraphics() - use e.Graphics instead.

You will need to handle MouseDown (capture start of move) MouseMove (Move your ellipse) and MouseUp (End of move).
Mark that you are moving in a bool in MouseDown, mark you aren't moving in MouseUp.
In MouseMove, check if you are moving, and store the coordinates of the mouse pointer. Use Invalidate() to redraw your ellipse.