SizeF Struct

Definitie

public value class SizeF

public value class SizeF : IEquatable<System::Drawing::SizeF>

[System.Runtime.InteropServices.ComVisible(true)]
[System.Serializable]
public struct SizeF

[System.Runtime.InteropServices.ComVisible(true)]
[System.Serializable]
[System.ComponentModel.TypeConverter(typeof(System.Drawing.SizeFConverter))]
public struct SizeF

public struct SizeF

public struct SizeF : IEquatable<System.Drawing.SizeF>

[<System.Runtime.InteropServices.ComVisible(true)>]
[<System.Serializable>]
type SizeF = struct

[<System.Runtime.InteropServices.ComVisible(true)>]
[<System.Serializable>]
[<System.ComponentModel.TypeConverter(typeof(System.Drawing.SizeFConverter))>]
type SizeF = struct

type SizeF = struct

Public Structure SizeF

Public Structure SizeF
Implements IEquatable(Of SizeF)

Overname

Object

ValueType

SizeF

Kenmerken

ComVisibleAttribute SerializableAttribute TypeConverterAttribute

Implementeringen

IEquatable<SizeF>

Voorbeelden

In het volgende codevoorbeeld wordt een schaduw aan een ListBox toegevoegd met behulp van de volgende leden:

• Addition

• PointF.Addition

• SolidBrush

Dit voorbeeld is ontworpen voor gebruik met een Windows Formulier. Als u dit voorbeeld wilt uitvoeren, plakt u deze code in een formulier en roept u de methode aan bij het AddShadow verwerken van de gebeurtenis van Paint het formulier. Controleer of het formulier een ListBox benoemde naam listBox1bevat.

private:
   void AddShadow( PaintEventArgs^ e )
   {
      // Create two SizeF objects.
      SizeF shadowSize = listBox1->Size;
      SizeF addSize = SizeF(10.5F,20.8F);

      // Add them together and save the result in shadowSize.
      shadowSize = shadowSize + addSize;

      // Get the location of the ListBox and convert it to a PointF.
      PointF shadowLocation = listBox1->Location;

      // Add two points to get a new location.
      shadowLocation = shadowLocation + System::Drawing::Size( 5, 5 );

      // Create a rectangleF. 
      RectangleF rectFToFill = RectangleF(shadowLocation,shadowSize);

      // Create a custom brush using a semi-transparent color, and 
      // then fill in the rectangle.
      Color customColor = Color::FromArgb( 50, Color::Gray );
      SolidBrush^ shadowBrush = gcnew SolidBrush( customColor );
      array<RectangleF>^ temp0 = {rectFToFill};
      e->Graphics->FillRectangles( shadowBrush, temp0 );

      // Dispose of the brush.
      delete shadowBrush;
   }

private void AddShadow(PaintEventArgs e)
{

    // Create two SizeF objects.
    SizeF shadowSize = listBox1.Size;
    SizeF addSize = new SizeF(10.5F, 20.8F);

    // Add them together and save the result in shadowSize.
    shadowSize = shadowSize + addSize;

    // Get the location of the ListBox and convert it to a PointF.
    PointF shadowLocation = listBox1.Location;

    // Add two points to get a new location.
    shadowLocation = shadowLocation + new Size(5, 5);

    // Create a rectangleF. 
    RectangleF rectFToFill = 
        new RectangleF(shadowLocation, shadowSize);

    // Create a custom brush using a semi-transparent color, and 
    // then fill in the rectangle.
    Color customColor = Color.FromArgb(50, Color.Gray);
    SolidBrush shadowBrush = new SolidBrush(customColor);
    e.Graphics.FillRectangles(shadowBrush, new RectangleF[]{rectFToFill});

    // Dispose of the brush.
    shadowBrush.Dispose();
}

Private Sub AddShadow(ByVal e As PaintEventArgs)

    ' Create two SizeF objects.
    Dim shadowSize As SizeF = Size.op_Implicit(listBox1.Size)
    Dim addSize As New SizeF(10.5F, 20.8F)

    ' Add them together and save the result in shadowSize.
    shadowSize = SizeF.op_Addition(shadowSize, addSize)

    ' Get the location of the ListBox and convert it to a PointF.
    Dim shadowLocation As PointF = Point.op_Implicit(listBox1.Location)

    ' Add a Size to the Point to get a new location.
    shadowLocation = PointF.op_Addition(shadowLocation, New Size(5, 5))

    ' Create a rectangleF. 
    Dim rectFToFill As New RectangleF(shadowLocation, shadowSize)

    ' Create a custom brush using a semi-transparent color, and 
    ' then fill in the rectangle.
    Dim customColor As Color = Color.FromArgb(50, Color.Gray)
    Dim shadowBrush As SolidBrush = New SolidBrush(customColor)
    e.Graphics.FillRectangles(shadowBrush, _
        New RectangleF() {rectFToFill})

    ' Dispose of the brush.
    shadowBrush.Dispose()
End Sub

Opmerkingen

De eenheid voor een SizeF structuur is afhankelijk van de PageUnit en PageScale instellingen voor het Graphics object dat wordt gebruikt om te tekenen.