A Windows Forms port (including System.Drawing) to Unity3d, built on top of 'UnityEngine.GUI' class.

• Button;
• CheckBox;
• ComboBox;
• DateTimePicker;
• FontDialog;
• Form;
• GroupBox;
• HScrollBar;
• Label;
• LinkLabel;
• ListBox;
• MenuStrip;
• MonthCalendar;
• NumericUpDown
• OpenFileDialog;
• Panel;
• PictureBox;
• ProgressBar;
• RadioButton;
• SaveFileDialog;
• SplitContainer;
• TabControl;
• TextBox;
• Timer;
• ToolStrip;
• ToolTip;
• TrackBar;
• TreeView;
• VScrollBar;

Additional custom controls:

• BitmapLabel;
• ColorPicker (replacement for ColorDialog);
• Highchart (replacement for Chart);
• RepeatButton;
• TableView (replacement for DataGridView);

1. Attach UnityWinForms script to GameObject;
2. Add Arial font to resources;
3. Add other fonts and images;
4. Create Form control in your MonoBehaviour script;

using UnityEngine;

using System.Windows.Forms;

public class GameGuiController : MonoBehaviour
{
	void Start()
	{
		var form = new Form();
		form.Show();
		
		// Or show a message.
		//// MessageBox.Show("Hello World.");
	}
}