C#鼠标获取Picturebox的颜色(基本完成)

Question

我的代码快完成了，但它不起作用。它给了我错误的图像位置，我认为这是因为图像设置为拉伸(stretch)。

有什么帮助吗？

        private void originalmaster_Click(object sender, EventArgs e)
    {

        var rato = e as MouseEventArgs;
        Bitmap b = new Bitmap(originalmaster.Image);
        Color c = b.GetPixel(rato.X, rato.Y);
        h = Math.Round(c.GetHue(), 0);
        h = (h * 255) / 360;
        s = Math.Round(c.GetSaturation() * 255, 0);
        v = Math.Round(c.GetBrightness() * 255, 0);


        lb_valores_hsv.Text = "H: " + h + " S: " + s + " V: " + v;
        lb_valores_rgb.Text = "R: " + c.R + " G: " + c.G + " B: " + c.B;

    }

rato 的位置不正确。

Answer 1

简短的回答:

     MouseEventArgs rato = e as MouseEventArgs;
     Bitmap b = ((Bitmap)originalmaster.Image);
     int x = rato.X * b.Width / originalmaster.ClientSize.Width;
     int y = rato.Y * b.Height / originalmaster.ClientSize.Height;
     Color c = b.GetPixel(x, y);