RectangleF Konstruktor

Definisi

Ruang nama:

System.Drawing

Rakitan:

System.Drawing.Primitives.dll

Menginisialisasi instans RectangleF baru kelas dengan lokasi dan ukuran yang ditentukan.

Overload

RectangleF(Vector4)	Menginisialisasi instans RectangleF baru struct dari yang ditentukan Vector4.
RectangleF(PointF, SizeF)	Menginisialisasi instans RectangleF baru kelas dengan lokasi dan ukuran yang ditentukan.
RectangleF(Single, Single, Single, Single)	Menginisialisasi instans RectangleF baru kelas dengan lokasi dan ukuran yang ditentukan.

RectangleF(Vector4)

Sumber:

RectangleF.cs

Menginisialisasi instans RectangleF baru struct dari yang ditentukan Vector4.

public:
 RectangleF(System::Numerics::Vector4 vector);

public RectangleF (System.Numerics.Vector4 vector);

new System.Drawing.RectangleF : System.Numerics.Vector4 -> System.Drawing.RectangleF

Public Sub New (vector As Vector4)

Parameter

vector

Vector4

Vektor sumber.

RectangleF(PointF, SizeF)

Sumber:

RectangleF.cs

Menginisialisasi instans RectangleF baru kelas dengan lokasi dan ukuran yang ditentukan.

public:
 RectangleF(System::Drawing::PointF location, System::Drawing::SizeF size);

public RectangleF (System.Drawing.PointF location, System.Drawing.SizeF size);

new System.Drawing.RectangleF : System.Drawing.PointF * System.Drawing.SizeF -> System.Drawing.RectangleF

Public Sub New (location As PointF, size As SizeF)

Parameter

location

PointF

PointF yang mewakili sudut kiri atas wilayah persegi panjang.

size

SizeF

SizeF yang mewakili lebar dan tinggi wilayah persegi panjang.

Contoh

Contoh kode berikut menunjukkan cara menggunakan Implicitanggota , , RectangleFdan Equality . Contoh ini dirancang untuk digunakan dengan Formulir Windows. Tempelkan kode ini ke dalam formulir dan panggil ConvertRectangleToRectangleF metode saat menangani peristiwa formulir Paint , meneruskan e sebagai PaintEventArgs.

private:
   void ConvertRectangleToRectangleF( PaintEventArgs^ e )
   {
      // Create a rectangle.
      Rectangle rectangle1 = Rectangle(30,40,50,100);

      // Convert it to a RectangleF.
      RectangleF convertedRectangle = rectangle1;

      // Create a new RectangleF.
      RectangleF rectangle2 = RectangleF(PointF(30.0F,40.0F),SizeF(50.0F,100.0F));

      // Create a custom, partially transparent brush.
      SolidBrush^ redBrush = gcnew SolidBrush( Color::FromArgb( 40, Color::Red ) );

      // Compare the converted rectangle with the new one.  If they 
      // are equal draw and fill the rectangles on the form.
      if ( convertedRectangle == rectangle2 )
      {
         e->Graphics->FillRectangle( redBrush, rectangle2 );
      }

      // Dispose of the custom brush.
      delete redBrush;
   }
};

private void ConvertRectangleToRectangleF(PaintEventArgs e)
{

    // Create a rectangle.
    Rectangle rectangle1 = new Rectangle(30, 40, 50, 100);

    // Convert it to a RectangleF.
    RectangleF convertedRectangle = rectangle1;

    // Create a new RectangleF.
    RectangleF rectangle2 = new RectangleF(new PointF(30.0F, 40.0F),
        new SizeF(50.0F, 100.0F));

    // Create a custom, partially transparent brush.
    SolidBrush redBrush = new SolidBrush(Color.FromArgb(40, Color.Red));

    // Compare the converted rectangle with the new one.  If they 
    // are equal draw and fill the rectangles on the form.
    if (convertedRectangle == rectangle2)
    {
        e.Graphics.FillRectangle(redBrush, rectangle2);
    }

    // Dispose of the custom brush.
    redBrush.Dispose();
}

Private Sub ConvertRectangleToRectangleF( _
    ByVal e As PaintEventArgs)

    ' Create a rectangle.
    Dim rectangle1 As New Rectangle(30, 40, 50, 100)

    ' Convert it to a RectangleF.
    Dim convertedRectangle As RectangleF = _
        RectangleF.op_Implicit(rectangle1)

    ' Create a new RectangleF.
    Dim rectangle2 As New RectangleF(New PointF(30.0F, 40.0F), _
        New SizeF(50.0F, 100.0F))

    ' Create a custom, partially transparent brush.
    Dim redBrush As New SolidBrush(Color.FromArgb(40, Color.Red))

    ' Compare the converted rectangle with the new one.  If they 
    ' are equal, draw and fill the rectangles on the form.
    If (RectangleF.op_Equality(convertedRectangle, rectangle2)) Then
        e.Graphics.FillRectangle(redBrush, rectangle2)
    End If

    ' Dispose of the custom brush.
    redBrush.Dispose()
End Sub

RectangleF(Single, Single, Single, Single)

Sumber:

RectangleF.cs

Menginisialisasi instans RectangleF baru kelas dengan lokasi dan ukuran yang ditentukan.

public:
 RectangleF(float x, float y, float width, float height);

public RectangleF (float x, float y, float width, float height);

new System.Drawing.RectangleF : single * single * single * single -> System.Drawing.RectangleF

Public Sub New (x As Single, y As Single, width As Single, height As Single)

Parameter

x

Single

Koordinat x sudut kiri atas persegi panjang.

y

Single

Koordinat y dari sudut kiri atas persegi.

width

Single

Lebar persegi panjang.

height

Single

Tinggi persegi panjang.

Contoh

Contoh kode berikut menunjukkan cara menggunakan RectangleFanggota , dan RoundTruncate . Contoh ini dirancang untuk digunakan dengan Formulir Windows. Tempelkan kode ini ke dalam formulir dan panggil RoundingAndTruncatingRectangles metode saat menangani peristiwa formulir Paint , meneruskan e sebagai PaintEventArgs.

private:
   void RoundingAndTruncatingRectangles( PaintEventArgs^ e )
   {
      // Construct a new RectangleF.
      RectangleF myRectangleF = RectangleF(30.6F,30.7F,40.8F,100.9F);

      // Call the Round method.
      Rectangle roundedRectangle = Rectangle::Round( myRectangleF );

      // Draw the rounded rectangle in red.
      Pen^ redPen = gcnew Pen( Color::Red,4.0f );
      e->Graphics->DrawRectangle( redPen, roundedRectangle );

      // Call the Truncate method.
      Rectangle truncatedRectangle = Rectangle::Truncate( myRectangleF );

      // Draw the truncated rectangle in white.
      Pen^ whitePen = gcnew Pen( Color::White,4.0f );
      e->Graphics->DrawRectangle( whitePen, truncatedRectangle );

      // Dispose of the custom pens.
      delete redPen;
      delete whitePen;
   }

private void RoundingAndTruncatingRectangles(PaintEventArgs e)
{

    // Construct a new RectangleF.
    RectangleF myRectangleF = 
        new RectangleF(30.6F, 30.7F, 40.8F, 100.9F);

    // Call the Round method.
    Rectangle roundedRectangle = Rectangle.Round(myRectangleF);

    // Draw the rounded rectangle in red.
    Pen redPen = new Pen(Color.Red, 4);
    e.Graphics.DrawRectangle(redPen, roundedRectangle);

    // Call the Truncate method.
    Rectangle truncatedRectangle = Rectangle.Truncate(myRectangleF);

    // Draw the truncated rectangle in white.
    Pen whitePen = new Pen(Color.White, 4);
    e.Graphics.DrawRectangle(whitePen, truncatedRectangle);

    // Dispose of the custom pens.
    redPen.Dispose();
    whitePen.Dispose();
}

Private Sub RoundingAndTruncatingRectangles( _
    ByVal e As PaintEventArgs)

    ' Construct a new RectangleF.
    Dim myRectangleF As New RectangleF(30.6F, 30.7F, 40.8F, 100.9F)

    ' Call the Round method.
    Dim roundedRectangle As Rectangle = Rectangle.Round(myRectangleF)

    ' Draw the rounded rectangle in red.
    Dim redPen As New Pen(Color.Red, 4)
    e.Graphics.DrawRectangle(redPen, roundedRectangle)

    ' Call the Truncate method.
    Dim truncatedRectangle As Rectangle = _
        Rectangle.Truncate(myRectangleF)

    ' Draw the truncated rectangle in white.
    Dim whitePen As New Pen(Color.White, 4)
    e.Graphics.DrawRectangle(whitePen, truncatedRectangle)

    ' Dispose of the custom pens.
    redPen.Dispose()
    whitePen.Dispose()
End Sub