Thank you both for your help. It is for a simple test application. I made this MouseMove event on a PictureBox that holds the map image. This is how my solution looks then:<br />
<div style="font-family: Courier">
<span style="color:blue;">private</span> void pictureBox1_MouseMove(object sender, MouseEventArgs e)<br />
{<br />
<span style="color:blue;">int</span> centerx = pictureBox1.Width / 2;<br />
<span style="color:blue;">int</span> centery = pictureBox1.Height / 2;<br />
<span style="color:blue;">double</span> ratio = 0.0254 / map.DisplayDpi * map.ViewScale;<br />
<span style="color:blue;">int</span> x = (<span style="color:blue;">int</span>)(map.ViewCenter.X + ((e.X - centerx)*ratio));<br />
<span style="color:blue;">int</span> y = (<span style="color:blue;">int</span>)(map.ViewCenter.Y - ((e.Y - centery)*ratio));<br />
ssx.Text = x.ToString();<br />
ssy.Text = y.ToString();<br />
}<br />
</div>
<br />
Hans...
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