Color.B Property
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Gets the blue component value of this Color structure.
public:
property System::Byte B { System::Byte get(); };
public byte B { get; }
member this.B : byte
Public ReadOnly Property B As Byte
The blue component value of this Color.
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) );
}
private 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;
string text = String.Format("Slate Blue has these ARGB values: Alpha:{0}, " +
"red:{1}, green: {2}, blue {3}", new object[]{a, r, g, b});
e.Graphics.DrawString(text,
new Font(this.Font, FontStyle.Italic),
new SolidBrush(slateBlue),
new RectangleF(new PointF(0.0F, 0.0F), this.Size));
}
Private Sub ShowPropertiesOfSlateBlue(ByVal e As PaintEventArgs)
Dim slateBlue As Color = Color.FromName("SlateBlue")
Dim g As Byte = slateBlue.G
Dim b As Byte = slateBlue.B
Dim r As Byte = slateBlue.R
Dim a As Byte = slateBlue.A
Dim text As String = _
String.Format("Slate Blue has these ARGB values: Alpha:{0}, " _
& "red:{1}, green: {2}, blue {3}", New Object() {a, r, g, b})
e.Graphics.DrawString(text, New Font(Me.Font, FontStyle.Italic), _
New SolidBrush(slateBlue), _
New RectangleF(New PointF(0.0F, 0.0F), _
Size.op_Implicit(Me.Size)))
End Sub
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. Likewise, B is a value from 0 to 255 with 0 representing no blue and 255 representing fully blue.
Product | Versions |
---|---|
.NET | Core 2.0, Core 2.1, Core 2.2, Core 3.0, Core 3.1, 5, 6, 7, 8, 9 |
.NET Framework | 1.1, 2.0, 3.0, 3.5, 4.0, 4.5, 4.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8, 4.8.1 |
.NET Standard | 2.0, 2.1 |
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