Color Structure
Updated: October 2008
Represents an ARGB (alpha, red, green, blue) color.
Assembly: System.Drawing (in System.Drawing.dll)
Named colors are represented by using the properties of the Color structure. For more information about these colors, see Colors by Name.
The color of each pixel is represented as a 32-bit number: 8 bits each for alpha, red, green, and blue (ARGB). Each of the four components is a number from 0 through 255, with 0 representing no intensity and 255 representing full intensity. The alpha component specifies the transparency of the color: 0 is fully transparent, and 255 is fully opaque. To determine the alpha, red, green, or blue component of a color, use the A, R, G, or B property, respectively. You can create a custom color by using one of the FromArgb methods.
The following code example demonstrates the A, R, G, and B properties of a Color, and the Implicit member.
This example is designed to be used with a Windows Form. Paste the code into the form and call the ShowPropertiesOfSlateBlue method from the form's Paint event-handling method, passing e as PaintEventArgs.
void ShowPropertiesOfSlateBlue( PaintEventArgs^ e ) { Color slateBlue = Color::FromName( "SlateBlue" ); Byte g = slateBlue.G; Byte b = slateBlue.B; Byte r = slateBlue.R; Byte a = slateBlue.A; array<Object^>^temp0 = {a,r,g,b}; String^ text = String::Format( "Slate Blue has these ARGB values: Alpha:{0}, " "red:{1}, green: {2}, blue {3}", temp0 ); e->Graphics->DrawString( text, gcnew System::Drawing::Font( this->Font,FontStyle::Italic ), gcnew SolidBrush( slateBlue ), RectangleF(PointF(0.0F,0.0F),this->Size) ); }
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The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.