ColorTransform Class

Provides a class to filter the color of the Visual objects. This class cannot be inherited.

Definition

public sealed class ColorTransform: Object

Members Table

The following table lists the members exposed by the ColorTransform object. Click a tab on the left to choose the type of member you want to view.

Methods

Method	Description
Clear	Removes the current offsets and scales of ARGB components of the ColorTransform.
ClearAdd	Removes the current offsets of ARGB components of the ColorTransform.
ClearScale	Removes the current scales of ARGB components of the ColorTransform.
ColorTransform	Overloaded. Initializes a new instance of ColorTransform.
Equals	Overloaded. Compares two objects to determine if they are equal.
GetHashCode	Overriden. Serves as a hash function for a particular type, suitable for use in hashing algorithms and data structures like a hash table.
GetType	Gets the Type of the current instance. (Inherited from Object)
ReferenceEquals	Determines whether the specified Object instances are the same instance. (Inherited from Object)
SetAdd	Sets the specified offsets of ARGB components to the ColorTransform.
SetScale	Sets the specified scales of ARGB components to the ColorTransform.
ToString	Returns a String that represents the current Object. (Inherited from Object)

Properties

Property	Description
AddAlpha	Gets or sets the offset for the alpha component of the ColorTransform.
AddBlue	Gets or sets the offset for the blue component of the ColorTransform.
AddGreen	Gets or sets the offset for the green component of the ColorTransform.
AddRed	Gets or sets the offset for the red component of the ColorTransform.
ScaleAlpha	Gets or sets the scale for the alpha component of the ColorTransform.
ScaleBlue	Gets or sets the scale for the blue component of the ColorTransform.
ScaleGreen	Gets or sets the scale for the green component of the ColorTransform.
ScaleRed	Gets or sets the scale for the red component of the ColorTransform.

Operators

Operator	Description
operator !=	Determines whether two specified ColorTransform instances are different.
operator *	Multiplies two specified ColorTransform instances by their matrices to create a new ColorTransform.
operator ==	Determines whether two specified ColorTransform instances are equivalent.

Inheritance Hierarchy

Object

ColorTransform

Examples

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// This sample shows how to implement the ColorTransform class to filter the color.

 

using System.Drawing;

using System.Windows.Forms;

 

public class MyControl : System.Windows.Forms.Control

{

     ColorTransform myColor ;

     protected override void OnPaint( PaintEventArgs e )

     {

          Visual v= this.Visual;

          Gradient gd= new Gradient(3);

          gd.SetColor( 0, Color.FromArgb(255,0,0)); // red color

          gd.SetOffset( 0, 0 );

          gd.SetColor( 1, Color.FromArgb(0,255,0) );// green color

          gd.SetOffset( 1, 100);

          gd.SetColor( 2, Color.FromArgb(0,0,255) );// blue color

          gd.SetOffset( 2, 255 );

 

          // Creates a new instance of the ColorTransform

          myColor = new ColorTransform();

          // to filter the red color.

          myColor.SetScale(0,1,1,1);

          v.SetColorTransform(myColor);

 

          // A transparent rectangle filled with a radial gradient

          v.BeginLinearGradientFill( gd, new PointF(10,10), new PointF(360,260) );

          v.DrawRectangle(10,10,360,260);

          v.EndFill();

     }

}

 

 

public class MyForm : System.Windows.Forms.Form

{

     private MyControl control1= null;

     public MyForm()

     {

          InitializeComponent();

     }

     private void InitializeComponent()

     {

          SuspendLayout();

          control1= new MyControl();

          control1.Location= new System.Drawing.Point(5,5);

          control1.Size= new Size(Application.Width-10,Application.Height-10);

          Controls.Add(this.control1);

          ResumeLayout(false);

     }

     static void Main()

     {

          Application.Run( new MyForm() );

     }

}

Class Information

Namespace	System.Drawing
Flash Library	System.Drawing.scl
Flash Library Version	2.0.0.1291
Silverlight Library	System.Windows.Forms.dll