Point.Explicit(Point to Size) 演算子

定義

指定した Point 構造体を Size 構造体に変換します。Converts the specified Point structure to a Size structure.

public:
 static explicit operator System::Drawing::Size(System::Drawing::Point p);
public static explicit operator System.Drawing.Size (System.Drawing.Point p);
static member op_Explicit : System.Drawing.Point -> System.Drawing.Size
Public Shared Narrowing Operator CType (p As Point) As Size

パラメーター

p
Point

変換される PointThe Point to be converted.

戻り値

変換の結果得られる SizeThe Size that results from the conversion.

次のコード例では、これらの型に対して定義されたいくつかのオーバーロードされた演算子を使用して、ポイントとサイズを作成します。The following code example creates points and sizes using several of the overloaded operators defined for these types. また、SystemPens クラスの使用方法も示します。It also demonstrates how to use the SystemPens class.

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 Windows Forms. subtractButtonという名前の Button を含むフォームを作成します。Create a form that contains a Button named subtractButton. 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 CreatePointsAndSizes 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 CreatePointsAndSizes method from the form's Paint event-handling method, passing e as PaintEventArgs.

void CreatePointsAndSizes( PaintEventArgs^ e )
{
   // Create the starting point.
   Point startPoint = Point(subtractButton->Size);
   
   // Use the addition operator to get the end point.
   Point endPoint = startPoint + System::Drawing::Size( 140, 150 );
   
   // Draw a line between the points.
   e->Graphics->DrawLine( SystemPens::Highlight, startPoint, endPoint );
   
   // Convert the starting point to a size and compare it to the
   // subtractButton size.  
   System::Drawing::Size buttonSize = (System::Drawing::Size)startPoint;
   if ( buttonSize == subtractButton->Size )
   {
      e->Graphics->DrawString( "The sizes are equal.", gcnew System::Drawing::Font( this->Font,FontStyle::Italic ), Brushes::Indigo, 10.0F, 65.0F );
   }
}
private void CreatePointsAndSizes(PaintEventArgs e)
{

    // Create the starting point.
    Point startPoint = new Point(subtractButton.Size);

    // Use the addition operator to get the end point.
    Point endPoint = startPoint + new Size(140, 150);

    // Draw a line between the points.
    e.Graphics.DrawLine(SystemPens.Highlight, startPoint, endPoint);

    // Convert the starting point to a size and compare it to the
    // subtractButton size.  
    Size buttonSize = (Size)startPoint;
    if (buttonSize == subtractButton.Size)

        // If the sizes are equal, tell the user.
    {
        e.Graphics.DrawString("The sizes are equal.", 
            new Font(this.Font, FontStyle.Italic), 
            Brushes.Indigo, 10.0F, 65.0F);
    }

}
Private Sub CreatePointsAndSizes(ByVal e As PaintEventArgs)

    ' Create the starting point.
    Dim startPoint As New Point(subtractButton.Size)

    ' Use the addition operator to get the end point.
    Dim endPoint As Point = Point.op_Addition(startPoint, _
        New Size(140, 150))

    ' Draw a line between the points.
    e.Graphics.DrawLine(SystemPens.Highlight, startPoint, endPoint)

    ' Convert the starting point to a size and compare it to the
    ' subtractButton size.  
    Dim buttonSize As Size = Point.op_Explicit(startPoint)
    If (Size.op_Equality(buttonSize, subtractButton.Size)) Then

        ' If the sizes are equal, tell the user.
        e.Graphics.DrawString("The sizes are equal.", _
            New Font(Me.Font, FontStyle.Italic), _
            Brushes.Indigo, 10.0F, 65.0F)
    End If

End Sub

適用対象