Color.FromKnownColor : Color « System.Drawing

  





using System;

using System.Drawing;

using System.Collections;

using System.ComponentModel;

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.ComponentModel.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();

        }

    }

}
Color.FromKnownColor : Color « System.Drawing « C# / C Sharp by API
