Color.G プロパティ


この Color 構造体の緑要素値を取得します。Gets the green component value of this Color structure.

 property System::Byte G { System::Byte get(); };
public byte G { get; }
member this.G : byte
Public ReadOnly Property G As Byte



この Color の緑のコンポーネントの値。The green component value of this Color.

次のコード例は、ColorARG、および B プロパティ、および Implicit メンバーを示しています。The following code example demonstrates the A, R, G, and B properties of a Color, and the Implicit member.

この例は、Windows フォームと共に使用するように設計されています。This example is designed to be used with a Windows Form. フォームにコードを貼り付け、フォームの Paint イベント処理メソッドから ShowPropertiesOfSlateBlue メソッドを呼び出して、ePaintEventArgsとして渡します。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});
        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), _
End Sub


各ピクセルの色は、32ビットの数値として表されます。アルファ、赤、緑、および青 (ARGB) はそれぞれ8ビットです。The color of each pixel is represented as a 32-bit number: 8 bits each for alpha, red, green, and blue (ARGB). 4つの各コンポーネントは、0 ~ 255 の数値です。0は濃度を表し、255は完全な輝度を表します。Each of the four components is a number from 0 through 255, with 0 representing no intensity and 255 representing full intensity. 同様に、G は 0 ~ 255 の値です。0は緑を表し、255は完全に緑を表します。Likewise, G is a value from 0 to 255 with 0 representing no green and 255 representing fully green.