Csharp/C Sharp by API/System.Drawing/Color

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Color.AliceBlue

<source lang="csharp"> //ColorGuide.cs /*

  This Program will generate all the colors that are supported in C# according 
  to the Name....
  I expected from you a better version of this program
    If you can , then inform me how you made it
  e.g. you make a dll file where the whole color array is stored then 
  your coding lines will  decrease. I tried that way but the trial was 
  in vane....
  • /

using System; using System.Windows.Forms; using System.Drawing; public class CreateMyPanel : Form {

 Color[] color = new Color[]{
                  Color.AliceBlue,    Color.AntiqueWhite,   Color.Aqua,   Color.Aquamarine,
                  Color.Azure,        Color.Beige,          Color.Bisque, Color.Black,
                  Color.BlanchedAlmond,Color.Blue,          Color.BlueViolet,Color.Brown,
                  Color.BurlyWood,    Color.CadetBlue,      Color.Chartreuse,Color.Chocolate,
                  Color.Coral,        Color.Cornsilk,Color.Crimson,
                  Color.Cyan,         Color.DarkBlue,       Color.DarkCyan,Color.DarkGoldenrod,
                  Color.DarkGray,     Color.DarkGreen,      Color.DarkKhaki,Color.DarkMagenta,
                  Color.DarkOliveGreen,Color.DarkOrange,Color.DarkOrchid,Color.DarkRed,
                  Color.DarkSalmon,Color.DarkSeaGreen,Color.DarkSlateBlue,Color.DarkSlateGray,
                  Color.DarkTurquoise,Color.DarkViolet,Color.DeepPink,Color.DeepSkyBlue,
                  Color.DimGray,Color.DodgerBlue,Color.Firebrick,Color.FloralWhite,
                  Color.ForestGreen,Color.Fuchsia,Color.Gainsboro,Color.GhostWhite,
                  Color.Gold,Color.Goldenrod,Color.Gray,Color.Green,Color.GreenYellow,
                  Color.Honeydew,Color.HotPink,Color.IndianRed,Color.Indigo,
                  Color.Ivory,Color.Khaki,Color.Lavender,Color.LavenderBlush,
                  Color.LawnGreen,Color.LemonChiffon,Color.LightBlue,Color.LightCoral,
                  Color.LightCyan,Color.LightGoldenrodYellow,Color.LightGray,
                  Color.LightGreen,Color.LightPink,Color.LightSalmon,Color.LightSeaGreen,
                  Color.LightSkyBlue,Color.LightSlateGray,Color.LightSteelBlue,
                  Color.LightYellow,Color.Lime,Color.LimeGreen,Color.Linen,
                  Color.Magenta,Color.Maroon,Color.MediumAquamarine,Color.MediumBlue,
                  Color.MediumOrchid,Color.MediumPurple,Color.MediumSeaGreen,
                  Color.MediumSlateBlue,Color.MediumSpringGreen,Color.MediumTurquoise,
                  Color.MediumVioletRed,Color.MidnightBlue,Color.MintCream,Color.MistyRose,
                  Color.Moccasin,Color.NavajoWhite,Color.Navy,Color.OldLace,
                  Color.Olive,Color.OliveDrab,Color.Orange,Color.OrangeRed,
                  Color.Orchid,Color.PaleGoldenrod,Color.PaleGreen,Color.PaleTurquoise,
                  Color.PaleVioletRed,Color.PapayaWhip,Color.PeachPuff,Color.Peru,
                  Color.Pink,Color.Plum,Color.PowderBlue,Color.Purple,Color.Red,
                  Color.RosyBrown,Color.RoyalBlue,Color.SaddleBrown,Color.Salmon,
                  Color.SandyBrown,Color.SeaGreen,Color.SeaShell,Color.Sienna,Color.Silver,
                  Color.SkyBlue,Color.SlateBlue,Color.SlateGray,Color.Snow,
                  Color.SpringGreen,Color.SteelBlue,Color.Tan,Color.Teal,
                  Color.Thistle,Color.Tomato,Color.Transparent,Color.Turquoise,
                  Color.Violet,Color.Wheat,Color.White,Color.WhiteSmoke,Color.Yellow,
                  Color.YellowGreen
                };
 private Panel panel1 = new Panel(); 
 private Label[] col = new Label[140];
 public CreateMyPanel() 
 {     
   // Initialize the Panel control.
   panel1.Location = new Point(ClientRectangle.Left + 5,ClientRectangle.Top + 5);
   panel1.Size = new Size(ClientRectangle.Right-5, ClientRectangle.Bottom-5);  
   panel1.BorderStyle = System.Windows.Forms.BorderStyle.Fixed3D;
   this.Controls.Add(panel1); // Add the Panel control to (inside) the form.  
   // Initalize the Label controls.  
   int ystart = ClientRectangle.Top;
   for(int j=0; j<140; j++)
     col[j] = new Label();
   for(int i = 0; i<140; i++)
   {
     col[i].Size = new Size(ClientRectangle.Right, 20);  
     col[i].Font = new System.Drawing.Font("Comic Sans MS",10,FontStyle.Bold);  
     col[i].ForeColor = Color.Black;
     if(col[i].Equals(Color.Black) == true)
     {
         col[i].ForeColor = Color.White;
     }
     col[i].Text = color[i].ToString();
     col[i].Location = new Point(ClientRectangle.Left,ystart);
     col[i].BackColor = color[i];
     col[i].BorderStyle = System.Windows.Forms.BorderStyle.Fixed3D;  
     panel1.Controls.Add(col[i]);  // Add the Label controls to (inside) the Panel.
     if((col[i].Location.Y > panel1.Location.Y))
     {
       panel1.AutoScroll = true;   
     }  
     ystart += 20;
   }
   this.Size = new Size(315, 300);
   this.Text = "A Color Guide - JAYANT";
   this.MaximizeBox = false;

// this.BorderStyle = FormBorderStyle.FixedDialog;

   this.StartPosition = FormStartPosition.CenterScreen;
 }
 public static void Main() 
 {
   Application.Run(new CreateMyPanel());
 }

} /* To Compile :---- csc /r:System.dll /r:System.Drawing.dll /r:System.Windows.Forms.dll /r:Microssft.Win32.InterOp.dll /out:ColorGuide.exe Colorguide.cs

  • /


 </source>


Color.Chocolate

<source lang="csharp"> using System; using System.Drawing; using System.Windows.Forms;

class PaintEvent {

    public static void Main()
    {
         Form form   = new Form();
         form.Text   = "Paint Event";
         form.Paint += new PaintEventHandler(MyPaintHandler);
  
         Application.Run(form);
    }
    static void MyPaintHandler(object objSender, PaintEventArgs pea)
    {
         Graphics graphics = pea.Graphics;
  
         graphics.Clear(Color.Chocolate);
    }

}


 </source>


Color.FromArgb(olor.Blue)

<source lang="csharp">

 using System;
 using System.Drawing;
 using System.Drawing.Drawing2D;
 using System.Collections;
 using System.ruponentModel;
 using System.Windows.Forms;
 using System.Data;
 public class Form1 : System.Windows.Forms.Form
 {
   public Form1()
   {
     InitializeComponent();
   }
   private void InitializeComponent()
   {
     this.AutoScaleBaseSize = new System.Drawing.Size(5, 13);
     this.ClientSize = new System.Drawing.Size(292, 273);
     this.Text = "";
     this.Resize += new System.EventHandler(this.Form1_Resize);
     this.Paint += new System.Windows.Forms.PaintEventHandler(this.Form1_Paint);
   }
   static void Main() 
   {
     Application.Run(new Form1());
   }
   private void Form1_Paint(object sender, System.Windows.Forms.PaintEventArgs e)
   {
     Graphics g = e.Graphics;
     g.FillRectangle(Brushes.White, this.ClientRectangle);
     Color c1 = Color.FromArgb(100, Color.Blue);
     Color c2 = Color.FromArgb(50, Color.Green);
     g.FillEllipse(Brushes.Red, 20, 20, 80, 80);
     g.FillRectangle(new SolidBrush(c1), 60, 80, 60, 60);
     Point[] pa = new Point[] {
                       new Point(150, 40), 
                       new Point(90, 40), 
                       new Point(90, 120)};
     g.FillPolygon(new SolidBrush(c2), pa);
   }
   private void Form1_Resize(object sender, System.EventArgs e)
   {
     Invalidate();
   }
 }
  
   
 </source>


Color.FromArgb(77, color.R, color.G, color.B)

<source lang="csharp"> using System; using System.Collections.Generic; using System.ruponentModel; using System.Data; using System.Drawing; using System.Text; using System.Windows.Forms; public class Form1 : Form {

 public Form1() {
       InitializeComponent();
 }
 private void Form1_Paint(object sender, PaintEventArgs e)
 {
   Bitmap bitmap = new Bitmap("winter.jpg");
   TextureBrush brush = new TextureBrush(bitmap);
   e.Graphics.FillRectangle(brush, ClientRectangle);
       bitmap.Dispose();
   Color color = Color.Yellow;
   int penWidth = 80;
   Pen opaquePen = new Pen(color, penWidth);
   e.Graphics.DrawLine(opaquePen, 0, 50, 200, 20);
       opaquePen.Dispose();
   Color semiTransparentColor = Color.FromArgb(128, color.R, color.G, color.B);
   Pen semiTransparentPen = new Pen(semiTransparentColor, penWidth);
   e.Graphics.DrawLine(semiTransparentPen, 0, 200, 200, 140);
       semiTransparentPen.Dispose();
   Color veryTransparentColor = Color.FromArgb(77, color.R, color.G, color.B);
   Pen veryTransparentPen = new Pen(veryTransparentColor, penWidth);
   e.Graphics.DrawLine(veryTransparentPen, 0, 350, 200, 260);
       veryTransparentPen.Dispose();
 
   Brush transparentBrush = new SolidBrush(semiTransparentColor);
   e.Graphics.DrawString("www.nfex.ru", new Font("Verdana", 36, FontStyle.Bold),
     transparentBrush, 80, 150);
 }
 private void InitializeComponent()
 {
   this.SuspendLayout();
   // 
   // Form1
   // 
   this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F);
   this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
   this.ClientSize = new System.Drawing.Size(292, 266);
   this.Name = "Form1";
   this.Text = "Alpha Blending";
   this.Paint += new System.Windows.Forms.PaintEventHandler(this.Form1_Paint);
   this.ResumeLayout(false);
 }
 [STAThread]
 static void Main()
 {
   Application.EnableVisualStyles();
   Application.Run(new Form1());
 }

}


 </source>


Color.FromArgb (int r, int g, int b)

<source lang="csharp"> using System; using System.Drawing; using System.Windows.Forms; public class ColorChips : Form {

 public ColorChips() {
   Size = new Size(300,300);
   Text = "Color Chips";
 }
 protected override void OnPaint(PaintEventArgs e)   {
   Graphics g = e.Graphics;
   int h = DisplayRectangle.Height;
   int w = DisplayRectangle.Width;
   Random r = new Random();
   for (int i = 0; i < 10; i++){
     for (int j = 0; j < 10; j++) {
       Color color = Color.FromArgb (r.Next(256), r.Next(256), r.Next(256));
       Brush brush = new SolidBrush(color); 
       g.FillRectangle(brush, i*w/10, j*h/10, w/10, h/10);
     } 
   }  
   base.OnPaint(e);
 }
 static void Main() {
   Application.Run(new ColorChips());
 }

}


 </source>


Color.FromKnownColor

<source lang="csharp">

using System; using System.Drawing; using System.Collections; using System.ruponentModel; using System.Windows.Forms; using System.Data; namespace ColorChanger {

   public class ColorChanger : System.Windows.Forms.Form
   {
       internal System.Windows.Forms.Label lblSaturation;
       internal System.Windows.Forms.Label lblHue;
       internal System.Windows.Forms.Label lblBrightness;
       internal System.Windows.Forms.Label Label1;
       internal System.Windows.Forms.ListBox lstColors;
       private System.ruponentModel.Container components = null;
       public ColorChanger()
       {
           InitializeComponent();
       }
       protected override void Dispose( bool disposing )
       {
           if( disposing )
           {
               if (components != null) 
               {
                   components.Dispose();
               }
           }
           base.Dispose( disposing );
       }
       #region Windows Form Designer generated code
       private void InitializeComponent()
       {
           this.lblSaturation = new System.Windows.Forms.Label();
           this.lblHue = new System.Windows.Forms.Label();
           this.lblBrightness = new System.Windows.Forms.Label();
           this.Label1 = new System.Windows.Forms.Label();
           this.lstColors = new System.Windows.Forms.ListBox();
           this.SuspendLayout();
           this.lblSaturation.BackColor = System.Drawing.SystemColors.ActiveCaptionText;
           this.lblSaturation.BorderStyle = System.Windows.Forms.BorderStyle.FixedSingle;
           this.lblSaturation.FlatStyle = System.Windows.Forms.FlatStyle.System;
           this.lblSaturation.Location = new System.Drawing.Point(264, 56);
           this.lblSaturation.Name = "lblSaturation";
           this.lblSaturation.Size = new System.Drawing.Size(136, 20);
           this.lblSaturation.TabIndex = 9;
           this.lblSaturation.Text = " Saturation";
           this.lblHue.BackColor = System.Drawing.SystemColors.ActiveCaptionText;
           this.lblHue.BorderStyle = System.Windows.Forms.BorderStyle.FixedSingle;
           this.lblHue.FlatStyle = System.Windows.Forms.FlatStyle.System;
           this.lblHue.Location = new System.Drawing.Point(264, 32);
           this.lblHue.Name = "lblHue";
           this.lblHue.Size = new System.Drawing.Size(136, 20);
           this.lblHue.TabIndex = 8;
           this.lblHue.Text = " Hue";
           this.lblBrightness.BackColor = System.Drawing.SystemColors.ActiveCaptionText;
           this.lblBrightness.BorderStyle = System.Windows.Forms.BorderStyle.FixedSingle;
           this.lblBrightness.FlatStyle = System.Windows.Forms.FlatStyle.System;
           this.lblBrightness.Location = new System.Drawing.Point(264, 8);
           this.lblBrightness.Name = "lblBrightness";
           this.lblBrightness.Size = new System.Drawing.Size(136, 20);
           this.lblBrightness.TabIndex = 7;
           this.lblBrightness.Text = " Brightness";
           this.Label1.BackColor = System.Drawing.SystemColors.ActiveCaptionText;
           this.Label1.BorderStyle = System.Windows.Forms.BorderStyle.FixedSingle;
           this.Label1.FlatStyle = System.Windows.Forms.FlatStyle.System;
           this.Label1.Location = new System.Drawing.Point(8, 8);
           this.Label1.Name = "Label1";
           this.Label1.Size = new System.Drawing.Size(200, 20);
           this.Label1.TabIndex = 6;
           this.Label1.Text = " Choose a Background Color:";
           this.lstColors.Location = new System.Drawing.Point(8, 36);
           this.lstColors.Name = "lstColors";
           this.lstColors.Size = new System.Drawing.Size(200, 238);
           this.lstColors.TabIndex = 5;
           this.lstColors.SelectedIndexChanged += new System.EventHandler(this.lstColors_SelectedIndexChanged);
           this.AutoScaleBaseSize = new System.Drawing.Size(5, 14);
           this.ClientSize = new System.Drawing.Size(472, 290);
           this.Controls.AddRange(new System.Windows.Forms.Control[] {
                                                                         this.lblSaturation,
                                                                         this.lblHue,
                                                                         this.lblBrightness,
                                                                         this.Label1,
                                                                         this.lstColors});
           this.Font = new System.Drawing.Font("Tahoma", 8.25F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((System.Byte)(0)));
           this.Name = "ColorChanger";
           this.Text = "Color Changer";
           this.Load += new System.EventHandler(this.ColorChanger_Load);
           this.ResumeLayout(false);
       }
       #endregion
       [STAThread]
       static void Main() 
       {
           Application.Run(new ColorChanger());
       }
       private void ColorChanger_Load(object sender, System.EventArgs e)
       {
           string[] colorNames;
           colorNames = System.Enum.GetNames(typeof(KnownColor));
           lstColors.Items.AddRange(colorNames);
       }
       private void lstColors_SelectedIndexChanged(object sender, System.EventArgs e)
       {
           KnownColor selectedColor;
           selectedColor = (KnownColor)System.Enum.Parse(typeof(KnownColor), lstColors.Text);
           
           this.BackColor = System.Drawing.Color.FromKnownColor(selectedColor);
           
           lblBrightness.Text = "Brightness = " +this.BackColor.GetBrightness().ToString();
           lblHue.Text = "Hue = " + this.BackColor.GetHue().ToString();
           lblSaturation.Text = "Saturation = " + this.BackColor.GetSaturation().ToString();
       }
   }

}


 </source>


Color.FromName

<source lang="csharp"> using System; using System.Drawing; using System.Collections; using System.ruponentModel; using System.Windows.Forms; using System.Data;

public class MainClass{

  public static void Main(){
   Color currColor = Color.FromName("Blue");
  }

}

 </source>


Color.LightGray

<source lang="csharp"> /* C# Programming Tips & Techniques by Charles Wright, Kris Jamsa Publisher: Osborne/McGraw-Hill (December 28, 2001) ISBN: 0072193794

  • /

using System; using System.Drawing; using System.Collections; using System.ruponentModel; using System.Windows.Forms; using System.Data; namespace AddControls {

 /// <summary>
 /// Summary description for FormAddControls.
 /// </summary>
 public class FormAddControls : System.Windows.Forms.Form
 {
   private System.Windows.Forms.ListBox listBox1;
   private System.Windows.Forms.Button button1;
   private System.Windows.Forms.TextBox textBox1;
   private System.Windows.Forms.Button button2;
   /// <summary>
   /// Required designer variable.
   /// </summary>
   private System.ruponentModel.Container components = null;
   public FormAddControls()
   {
     //
     // Required for Windows Form Designer support
     //
     InitializeComponent();
     //
     // TODO: Add any constructor code after InitializeComponent call
     //
   }
   /// <summary>
   /// Clean up any resources being used.
   /// </summary>
   protected override void Dispose( bool disposing )
   {
     if( disposing )
     {
       if (components != null) 
       {
         components.Dispose();
       }
     }
     base.Dispose( disposing );
   }
   #region Windows Form Designer generated code
   /// <summary>
   /// Required method for Designer support - do not modify
   /// the contents of this method with the code editor.
   /// </summary>
   private void InitializeComponent()
   {
     this.textBox1 = new System.Windows.Forms.TextBox();
     this.button1 = new System.Windows.Forms.Button();
     this.button2 = new System.Windows.Forms.Button();
     this.listBox1 = new System.Windows.Forms.ListBox();
     this.SuspendLayout();
     // 
     // textBox1
     // 
     this.textBox1.Location = new System.Drawing.Point(38, 200);
     this.textBox1.Name = "textBox1";
     this.textBox1.Size = new System.Drawing.Size(216, 20);
     this.textBox1.TabIndex = 1;
     this.textBox1.Text = "";
     // 
     // button1
     // 
     this.button1.Location = new System.Drawing.Point(48, 240);
     this.button1.Name = "button1";
     this.button1.Size = new System.Drawing.Size(80, 24);
     this.button1.TabIndex = 2;
     this.button1.Text = "Add Item";
     this.button1.Click += new System.EventHandler(this.button1_Click);
     this.button1.MouseEnter += new System.EventHandler(this.Buttons_OnMouseEnter);
     this.button1.MouseLeave += new System.EventHandler(this.Buttons_OnMouseLeave);
     // 
     // button2
     // 
     this.button2.Location = new System.Drawing.Point(160, 240);
     this.button2.Name = "button2";
     this.button2.Size = new System.Drawing.Size(96, 24);
     this.button2.TabIndex = 3;
     this.button2.Text = "Cancel";
     this.button2.Click += new System.EventHandler(this.button2_Click);
     this.button2.MouseEnter += new System.EventHandler(this.Buttons_OnMouseEnter);
     this.button2.MouseLeave += new System.EventHandler(this.Buttons_OnMouseLeave);
     // 
     // listBox1
     // 
     this.listBox1.Location = new System.Drawing.Point(38, 32);
     this.listBox1.Name = "listBox1";
     this.listBox1.Size = new System.Drawing.Size(216, 147);
     this.listBox1.TabIndex = 0;
     // 
     // FormAddControls
     // 
     this.AutoScaleBaseSize = new System.Drawing.Size(5, 13);
     this.ClientSize = new System.Drawing.Size(292, 273);
     this.Controls.AddRange(new System.Windows.Forms.Control[] {
                                     this.button2,
                                     this.button1,
                                     this.textBox1,
                                     this.listBox1});
     this.Name = "FormAddControls";
     this.Text = "FormAddControls";
     this.ResumeLayout(false);
   }
   #endregion
   /// <summary>
   /// The main entry point for the application.
   /// </summary>
   [STAThread]
   static void Main() 
   {
     Application.Run(new FormAddControls());
   }
   private void button1_Click(object sender, System.EventArgs e)
   {
     if (textBox1.Text == "")
       return;
     string strAdd = textBox1.Text;
     if (listBox1.FindString (strAdd, -1) < 0)
     {
       listBox1.Items.Add (strAdd);
       textBox1.Text = "";
       textBox1.Focus ();
       return;
     }
     MessageBox.Show ("\"" + strAdd + "\" is already in the list box", "Duplicate");
   }
   private void button2_Click(object sender, System.EventArgs e)
   {
     Application.Exit();
   }
   private void Buttons_OnMouseEnter(object sender, System.EventArgs e)
   {
     Button btn = (Button) sender;
     btn.BackColor = Color.LightGray;
   }
   private void Buttons_OnMouseLeave(object sender, System.EventArgs e)
   {
     Button btn = (Button) sender;
     btn.BackColor = SystemColors.Control;
   }
 }

}


 </source>


Color.Tomato

<source lang="csharp">

 using System;
 using System.Drawing;
 using System.Collections;
 using System.ruponentModel;
 using System.Windows.Forms;
 using System.Data;
 public class MainForm : System.Windows.Forms.Form
 {
   private System.ruponentModel.Container components;
   public MainForm()
   {
     InitializeComponent();
     BackColor = Color.Tomato;
     Opacity = 0.5d;
     Text = "www.nfex.ru";
     Cursor = Cursors.WaitCursor;
     this.Paint += new System.Windows.Forms.PaintEventHandler(this.Form1_Paint);
   }
   protected override void Dispose( bool disposing )
   {
     if( disposing )
     {
       if (components != null) 
       {
         components.Dispose();
       }
     }
     base.Dispose( disposing );
   }
   private void InitializeComponent()
   {
     this.AutoScaleBaseSize = new System.Drawing.Size(5, 13);
     this.ClientSize = new System.Drawing.Size(292, 273);
     this.Text = "Form1";
   }
   [STAThread]
   static void Main() 
   {
     Application.Run(new MainForm());
   }
   private void Form1_Paint(object sender, System.Windows.Forms.PaintEventArgs e)
   {
     Graphics g = e.Graphics;
     g.DrawString("www.nfex.ru", 
       new Font("Times New Roman", 20), 
       new SolidBrush(Color.Black), 40, 10);
   }
 }
  
   
 </source>


Color.White

<source lang="csharp">

using System; using System.Drawing; using System.Windows.Forms;

class InheritTheForm: Form {

    public static void Main()
    {
         InheritTheForm form = new InheritTheForm();
         form.Text = "Inherit the Form";
         form.BackColor = Color.White;
  
         Application.Run(form);
    }

}


 </source>