Returns the color at a particular point on the canvas.

[Visual Basic]
Function GetColor(inPoint As System.Drawing.Point) As System.Drawing.Color

[C#]
System.Drawing.Color GetColor(System.Drawing.Point inPoint);

You may wish to find the color of the Canvas at a particular point. Pass in a point and this function will return the color.

Specifying Colors.
XColor object.

[Visual Basic]
Dim ca As New Canvas
Dim myparams As String
Dim mycol As New XColor
ca.Width = 200
ca.Height = 200
myparams = " Size=100,100 Operation=both"
ca.DrawShape("rect", "Pos=0,0 PaintColor=red PenColor=red" + myparams)
ca.DrawShape("rect", "Pos=100,0 PaintColor=green PenColor=green" + myparams)
ca.DrawShape("rect", "Pos=0,100 PaintColor=blue PenColor=blue" + myparams)
ca.DrawShape("rect", "Pos=100,100 PaintColor=yellow PenColor=yellow" + myparams)
ca.SaveAs(Server.MapPath("getcolor.gif"), "")
mycol.Color = ca.GetColor(New System.Drawing.Point(50,50))
Response.Write("Top Left Color is " + mycol.String + "<br>" + vbCrLf)
mycol.Color = ca.GetColor(New System.Drawing.Point(150,50))
Response.Write("Top Right Color is " + mycol.String + "<br>" + vbCrLf)
mycol.Color = ca.GetColor(New System.Drawing.Point(50,150))
Response.Write("Bottom Left Color is " + mycol.String + "<br>" + vbCrLf)
mycol.Color = ca.GetColor(New System.Drawing.Point(150,150))
Response.Write("Bottom Left Color is " + mycol.String + "<br>" + vbCrLf)

[C#]
Canvas ca = new Canvas();
XColor mycol = new XColor();
ca.Width = 200;
ca.Height = 200;
string myparams = " Size=100,100 Operation=both";
ca.DrawShape("rect", "Pos=0,0 PaintColor=red PenColor=red" + myparams);
ca.DrawShape("rect", "Pos=100,0 PaintColor=green PenColor=green" + myparams);
ca.DrawShape("rect", "Pos=0,100 PaintColor=blue PenColor=blue" + myparams);
ca.DrawShape("rect", "Pos=100,100 PaintColor=yellow PenColor=yellow" + myparams);
ca.SaveAs(Server.MapPath("getcolor.gif"), "");
mycol.Color = ca.GetColor(new System.Drawing.Point(50,50));
Response.Write("Top Left Color is " + mycol.String + "<br>\r\n");
mycol.Color = ca.GetColor(new System.Drawing.Point(150,50));
Response.Write("Top Right Color is " + mycol.String + "<br>\r\n");
mycol.Color = ca.GetColor(new System.Drawing.Point(50,150));
Response.Write("Bottom Left Color is " + mycol.String + "<br>\r\n");
mycol.Color = ca.GetColor(new System.Drawing.Point(150,150));
Response.Write("Bottom Left Color is " + mycol.String + "<br>\r\n");

The graphics file and text output that this produces is shown below. Note that the names of colors map onto what might be described as a typical value rather than a 100% saturated value. For instance green is not a 100% saturated green with no other components (this looks rather garish) but a rather more typical green color.

getcolor.gif

Top Left Color is 86.7,3.1,2.4,0.0
Top Right Color is 0.0,39.2,6.7,0.0
Bottom Left Color is 0.0,0.0,83.1,0.0
Bottom Left Color is 98.8,95.3,2.0,0.0