Mono System.Drawing

[grim918]

I am learing how to use mono and I am getting this error when I try to compile the program. I am using Gtk#. I got the program example from
the mono-project.com website. http://www.mono-project.com/GtkSharp:_Buttons

here is the simple program that I am trying to compile:


using Gtk;
using System;
using System.Drawing;

public class togglebuttons
{
public static void Main(string[] args)
{
Application.Init();

Window.window = new Window("Toggle Buttons");
window.Resize(200,200);

wndow.DeleteEvent += delete_event;

/* Creating a new Toggle Button */
ToggleButton togglebutton = new ToggleButton("button1");
togglebutton.Clicked += clickedCallback;

window.Add(togglebutton);
window.ShowAll();

Application.Run();
}

static void delete_event(object obj, DeleteEventArgs args)
{
Application.Quit();
}

static void clickedCallback(object obj, EventArgs args)
{
/* Check Active Property */
if(((ToggleButton) obj).Active)
Console.WriteLine("ToggleButton clicked,I'm activating") ;
}
}


I use this command to compile the program:

mcs -pkg:gtk-sharp-2.0 toggle.cs

And here is the compile error that I get:


toggle.cs(5,7): error CS0234: The type or namespace name `Drawing' does not exist in the namespace `System'. Are you missing an assembly reference?
toggle.cs(5,1): error CS0246: The type or namespace name `System.Drawing' could not be found. Are you missing a using directive or an assembly reference?
 Try using -r:System.Drawing
toggle.cs(5,7): error CS0234: The type or namespace name `Drawing' does not exist in the namespace `System'. Are you missing an assembly reference?
toggle.cs(5,1): error CS0246: The type or namespace name `System.Drawing' could not be found. Are you missing a using directive or an assembly reference?
Try using -r:System.Drawing
Compilation failed: 4 error(s), 0 warnings


Does anyone know How to make this work. I am using Dapper if thats any help. Thank you.

[grim918]

Nevermind. I figured it out. If anyone comes across this problem just type the following in the command line:


mcs -pkg:gtk-sharp-2.0 -r:System.Drawing toggle.cs

[solde9]

Nevermind. I figured it out. If anyone comes across this problem just type the following in the command line:

Thank You!

But, how it works?

[cgroza]

Thank You!

But, how it works?
It tells the compiler where to find the declarations it needs. Sort of like linking in C.