SizeF 构造函数

定义

根据指定的现有 SizeF 结构初始化 SizeF 结构的新实例。

重载

SizeF(PointF)

根据指定的 PointF 结构初始化 SizeF 结构的新实例。

SizeF(SizeF)

根据指定的现有 SizeF 结构初始化 SizeF 结构的新实例。

SizeF(Vector2)

从指定的 Vector2初始化 结构的新实例SizeF

SizeF(Single, Single)

根据指定的维度初始化 SizeF 结构的新实例。

SizeF(PointF)

Source:
SizeF.cs
Source:
SizeF.cs
Source:
SizeF.cs

根据指定的 PointF 结构初始化 SizeF 结构的新实例。

public:
 SizeF(System::Drawing::PointF pt);
public SizeF (System.Drawing.PointF pt);
new System.Drawing.SizeF : System.Drawing.PointF -> System.Drawing.SizeF
Public Sub New (pt As PointF)

参数

pt
PointF

初始化此 SizeF 结构所依据的 PointF 结构。

适用于

SizeF(SizeF)

Source:
SizeF.cs
Source:
SizeF.cs
Source:
SizeF.cs

根据指定的现有 SizeF 结构初始化 SizeF 结构的新实例。

public:
 SizeF(System::Drawing::SizeF size);
public SizeF (System.Drawing.SizeF size);
new System.Drawing.SizeF : System.Drawing.SizeF -> System.Drawing.SizeF
Public Sub New (size As SizeF)

参数

size
SizeF

要从其中创建新 SizeF 结构的 SizeF 结构。

适用于

SizeF(Vector2)

Source:
SizeF.cs
Source:
SizeF.cs
Source:
SizeF.cs

从指定的 Vector2初始化 结构的新实例SizeF

public:
 SizeF(System::Numerics::Vector2 vector);
public SizeF (System.Numerics.Vector2 vector);
new System.Drawing.SizeF : System.Numerics.Vector2 -> System.Drawing.SizeF
Public Sub New (vector As Vector2)

参数

vector
Vector2

源向量。

适用于

SizeF(Single, Single)

Source:
SizeF.cs
Source:
SizeF.cs
Source:
SizeF.cs

根据指定的维度初始化 SizeF 结构的新实例。

public:
 SizeF(float width, float height);
public SizeF (float width, float height);
new System.Drawing.SizeF : single * single -> System.Drawing.SizeF
Public Sub New (width As Single, height As Single)

参数

width
Single

SizeF 结构的宽度分量。

height
Single

SizeF 结构的高度分量。

示例

下面的代码示例使用以下成员将阴影添加到 :ListBox

此示例旨在与 Windows 窗体一起使用。 若要运行此示例,请将此代码粘贴到窗体中, AddShadow 并在处理窗体 Paint 的事件时调用 方法。 验证窗体是否包含 ListBox 名为 listBox1的 。

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

适用于