1.[DllImport("user32.dll")]//取設(shè)備場景
2.private static extern IntPtr GetDC(IntPtr hwnd);//返回設(shè)備場景句柄
3.[DllImport("gdi32.dll")]//取指定點顏色
4.private static extern int GetPixel(IntPtr hdc, Point p);

Timer tim = new Timer();
tim.Interval = 1;
tim.Tick += delegate
{
Point p = new Point(MousePosition.X, MousePosition.Y);//取置頂點坐標(biāo)
IntPtr hdc = GetDC(new IntPtr(0));//取到設(shè)備場景(0就是全屏的設(shè)備場景)
int c = GetPixel(hdc, p);//取指定點顏色
int r = (c & 0xFF);//轉(zhuǎn)換R
int g = (c & 0xFF00) / 256;//轉(zhuǎn)換G
int b = (c & 0xFF0000) / 65536;//轉(zhuǎn)換B
pictureBox1.BackColor = Color.FromArgb(r, g, b);
};
tim.Start();