ARGB(Byte,Byte,Byte,Byte) Method

In This Topic

Returns a Color object, that represents a color composed from a specified set of alpha, red, green and blue color components.

Syntax

Visual Basic
C#
Delphi
JScript
Managed Extensions for C++
C++/CLI

'Declaration
 
Public Overloads Function ARGB( _
   ByVal Alpha As Byte, _
   ByVal Red As Byte, _
   ByVal Green As Byte, _
   ByVal Blue As Byte _
) As Color

public Color ARGB( 
   byte Alpha,
   byte Red,
   byte Green,
   byte Blue
)

public function ARGB( 
    Alpha: Byte;
    Red: Byte;
    Green: Byte;
    Blue: Byte
): Color;

public function ARGB( 
   Alpha : byte,
   Red : byte,
   Green : byte,
   Blue : byte
) : Color;

public: Color ARGB( 
   byte Alpha,
   byte Red,
   byte Green,
   byte Blue
)

public:
Color ARGB( 
   byte Alpha,
   byte Red,
   byte Green,
   byte Blue
)

Parameters

Alpha: The value for the alpha component also known as a transparency. Use the value between 0 (full transparency) and 255 (full opacity).
Red: The value for the red component. Use the value between 0 and 255.
Green: The value for the green component. Use the value between 0 and 255.
Blue: The value for the blue component. Use the value between 0 and 255.

Return Value

A Color object representing a required color.

Example

Rendering an image with a circle onto the background image and saving the result into a png file.

using (GdPictureImaging gdpictureImaging = new GdPictureImaging())
{
    Color backColor = gdpictureImaging.ARGB(255, 0, 255, 0); // Green color
    Color circleColor = gdpictureImaging.ARGB(255, 255, 0, 0); // Red color
 
    // Create a background image.
    int backImage = gdpictureImaging.CreateNewGdPictureImage(320, 200, 32, backColor);
 
    // Create an image used for drawing, and draw a circle on it.
    int circleImage = gdpictureImaging.CreateNewGdPictureImage(80, 80, 32, gdpictureImaging.ARGB(0, 0, 0, 0));
    gdpictureImaging.DrawFilledCircle(circleImage, 40, 40, 60, circleColor, false);
 
    // Draw an image with a circle onto the background image.
    gdpictureImaging.DrawGdPictureImage(circleImage, backImage, 0, 0, 80, 80, System.Drawing.Drawing2D.InterpolationMode.Default);
    gdpictureImaging.SaveAsPNG(backImage, "output.png");
 
    // Release used resources.
    gdpictureImaging.ReleaseGdPictureImage(circleImage);
    gdpictureImaging.ReleaseGdPictureImage(backImage);
}

Reference

GdPictureImaging Class
GdPictureImaging Members
Overload List
ARGBI Method
ClearImage(Int32,Color) Method