Point.Subtraction(Point, Size) Operador

Definição

Espaço de Nomes:
System.Drawing
Assemblagem:
System.Drawing.dll
Assemblagem:
netstandard.dll

Traduz a Point pelo negativo de um dado Size.

public:
 static System::Drawing::Point operator -(System::Drawing::Point pt, System::Drawing::Size sz);
public static System.Drawing.Point operator -(System.Drawing.Point pt, System.Drawing.Size sz);
static member ( - ) : System.Drawing.Point * System.Drawing.Size -> System.Drawing.Point
Public Shared Operator - (pt As Point, sz As Size) As Point

Parâmetros

pt
Point

O Point para traduzir.

sz
Size

A Size que especifica o par de números a subtrair das coordenadas de pt.

Devoluções

Point

Uma Point estrutura que é traduzida pelo negativo de uma dada Size estrutura.

Exemplos

O exemplo de código seguinte demonstra como usar o PointConverter operador e Subtraction . Este exemplo foi concebido para ser usado com Windows Forms. Cole este código num formulário e chame o ShowPointConverter método ao tratar o evento do Paint formulário, passando e como PaintEventArgs.

void ShowPointConverter( PaintEventArgs^ e )
{
   // Create the PointConverter.
   System::ComponentModel::TypeConverter^ converter = System::ComponentModel::TypeDescriptor::GetConverter( Point::typeid );
   Point point1 =  *dynamic_cast<Point^>(converter->ConvertFromString( "200, 200" ));

   // Use the subtraction operator to get a second point.
   Point point2 = point1 - System::Drawing::Size( 190, 190 );

   // Draw a line between the two points.
   e->Graphics->DrawLine( Pens::Black, point1, point2 );
}

private void ShowPointConverter(PaintEventArgs e)
{

    // Create the PointConverter.
    System.ComponentModel.TypeConverter converter = 
        System.ComponentModel.TypeDescriptor.GetConverter(typeof(Point));

    Point point1 = (Point) converter.ConvertFromString("200, 200");

    // Use the subtraction operator to get a second point.
    Point point2 = point1 - new Size(190, 190);

    // Draw a line between the two points.
    e.Graphics.DrawLine(Pens.Black, point1, point2);
}

Private Sub ShowPointConverter(ByVal e As PaintEventArgs)

    ' Create the PointConverter.
    Dim converter As System.ComponentModel.TypeConverter = _
        System.ComponentModel.TypeDescriptor.GetConverter(GetType(Point))

    Dim point1 As Point = _
        CType(converter.ConvertFromString("200, 200"), Point)

    ' Use the subtraction operator to get a second point.
    Dim point2 As Point = Point.op_Subtraction(point1, _
        New Size(190, 190))

    ' Draw a line between the two points.
    e.Graphics.DrawLine(Pens.Black, point1, point2)
End Sub

Aplica-se a