can I have a simple complete program using mouseclick to fire the event?
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GetPixel in ASP.net
Hi all,
May I know is there any equivalent GetPixel() function in ASP.net? I wish to get colour of pixel in an image(bitmap).
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Answers
This is fairly easy quesion, just time consuming question. I won't provide you a full program but just guide you what to do step by step:
1) Create a new form, put a picture box on the form, denoted as pictureBox1, load your own picture. Also add a label box (label1) to show the rgb color result.
2) Double click on the pictureBox1 to create a mouse click event
3) In the click event, add the following code:
private void pictureBox1_Click(object sender, EventArgs e)
{
MouseEventArgs arg = (MouseEventArgs) e;
Bitmap bm = new Bitmap(pictureBox1.Image);
this.label1.Text = bm.GetPixel(arg.X, arg.Y).ToArgb();
}
Note: the above code is for sample only, it works as create a new Bitmap on every single click and this will degrade the performance, you should concern about this issue when you design your code.
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by: akumanovaPosted on 2008-04-16 at 22:40:03ID: 21374413
Bitmap bm = new Bitmap(yourFileName);
bm.GetPixel(x, y).ToArgb();