zoom+graphics+bitmap using CE;

[alarock]

HI
THIS IS MY CODE..I WANT TO ZOOM THE BITMAP..HOW IT IS POSSIBLE???

using System;
using System.Collecti ons.Generic;
using System.Componen tModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows. Forms;

namespace WindowsApplicat ion1
{
public partial class Form1 : Form
{
public Bitmap bmp;
private Graphics grfx;
public Form1()
{
bmp=new Bitmap(this.Wid th,this.Height) ;
grfx=Graphics.F ormImage(bmp);
grfx.PageUnit=G raphicsUnit.Mil limeter;
this.Autoscroll minsize=bmp.Siz e;
InitializeCompo nent();
}
protected override void OnMouseClick(Mo useEventArgs e)
{
grfx.DrawRectan gle(new Pen(color.Red), 2,2,30,50);
base.OnMouseCli ck(e);
}

protected override void OnMouseWheel(Mo useEventArgs e)
{

/// here i want to perform the zoom operation of the bitmap (or) grfx...
base.OnMouseWhe el(e);
}
protected override void OnPaint(PaintEv entArgs pe)
{
Graphics Grfxbmp=pe.grap hics;
Grfxbmp.DrawBit map(bmp,this.Au toscrolPosition .x,AutoscrolPoi sition.y,bmp.wi dth,bmp.height) ;
base.OnPaint(e) ;
}


}
}


Thanks And regards,
ALGATES....