Here's how you do it:
1) Create a new winform c# project.
2) Drag a Button and a Picturebox from your Toolbox then drop those
controls on your form.
Set aside enough space for your picturebox.
3) Double-click on your Button control and type this line:
private button1_Click(object sender, EventArgs e)
{
markImage(0,0); // the only line to type.
}
4) On your pictureBox Mouse click event, type this line:
private void pictureBox1_MouseClick(object sender, MouseEventArgs
e)
{
markImage(e.X, e.Y); // the only line to type.
}
Now type the definition of the markImage() routine like so:
private void markImage(int x, int y)
{
Bitmap myBitmap = new Bitmap("sample.jpg");
Graphics g = Graphics.FromImage(myBitmap);
g.TextRenderingHint =
System.Drawing.Text.TextRenderingHint.AntiAlias;
g.DrawString("X", new Font("Tahoma", 20), Brushes.Red, new
PointF(x, y));
pictureBox1.Image = myBitmap;
}
g.DrawString() places an red "X" at the point where you click a region
in the image
with your mouse as indicated in your parameters (x and y).
Cheers!
Benj
On Mar 31, 6:43 pm, Clyde Smith <[email protected]> wrote:
> Hi There
>
> I have an image that the user browse and select. Once this image has been
> selected I want to display the image and the user clicks on the location on
> the image and where it was clicked I must place an x there. How can I do
> this is C#
>
> Thx
> Clyde
>
> --
> ----------------------------------------
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