How to get the RGB values of each pixel in the windows form with GDI+ ?

im547.cis93g22y ago

I find a alternative way to achieve my purpose: 1. Create a bitmap, "Bitmap myBitMap;" 2. In OnPaint function, use "this.BackgroundImage = myBitMap;" to load bg-image for the form, now we can access the pixels from the Bitmap, and the status would display in the form. :)

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im547.cis93g22y ago

if I put "this.GetChildAtPoint(pt).ForeColor;" into OnPaint function, protected override void OnPaint(PaintEventArgs e) { Graphics g = e.Graphics ; g.FillRectangle(new SolidBrush(Color.White), ClientRectangle); Pen pn = new Pen( Color.FromArgb(61,61,61), 2 ); for(int i=0;i

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jimteeuwen22y ago

What exactly is the Exception it generates?

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dj_toffo22y ago

Hi new to this forum as well, basically want the same thing, to read the color of the pixel at the mouse position, in a picturebox. Im trying to do A clickable map of Europe wish seems like a simple thing but I want it to recognize the land by color so.

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