c#代码：
[DllImport("user32")]
public static extern IntPtr GetDC(IntPtr hwnd);
[DllImport("user32")]
public static extern int GetCursorPos(ref Point lpPoint);
[DllImport("gdi32")]
public static extern int GetPixel(IntPtr hdc,int x,int y);
private void timer1_Tick(object sender, System.EventArgs e)
{
int result;
int a;
Point p=new Point(0,0);
result=GetCursorPos(ref p);
label15.Text="X="+p.X.ToString();
label16.Text="Y="+p.Y.ToString();
a=GetPixel(GetDC((IntPtr)null),p.X,p.Y);
label17.Text="COLOR="+a.ToString("X6");
char[] r=new Char[2];
r[0]=a.ToString("X6")[4];
r[1]=a.ToString("X6")[5];
string sr=new string(r);
r[0]=a.ToString("X6")[2];
r[1]=a.ToString("X6")[3];
string sg=new string(r);
r[0]=a.ToString("X6")[0];
r[1]=a.ToString("X6")[1];
string sb=new string(r);
int ir=Int32.Parse(sr,System.Globalization.NumberStyles.HexNumber);
int ig=Int32.Parse(sg,System.Globalization.NumberStyles.HexNumber);
int ib=Int32.Parse(sb,System.Globalization.NumberStyles.HexNumber);
panel1.BackColor=Color.FromArgb(ir,ig,ib);
}
