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  4. The second parameter passed in is an instance of the ImageClickEventArgs class
This  class has the following properties:
X: The x coordinate relative to the image the user clicked.
Y: The y coordinate relative to the image the user clicked.
<%@ Page Language="C#" %>
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

    protected void btnTarget_Click(object sender, ImageClickEventArgs e)
    {
        if ((e.X > 90 && e.X < 110) && (e.Y > 90 && e.Y < 110))
            lblResult.Text = "You hit the target!";
        else
            lblResult.Text = "You missed!";
    }



    ImageButton Target


    
    

            id="btnTarget"
        ImageUrl="http://www.rntsoft.com/style/logo.png"
        Runat="server" OnClick="btnTarget_Click" />
    
            id="lblResult"
        Runat="server" />