SizeF 建構函式

定義

從現有的指定 SizeF 結構,初始化 SizeF 結構的新執行個體。Initializes a new instance of the SizeF structure from the specified existing SizeF structure.

多載

SizeF(PointF)

從指定的 SizeF 結構,初始化 PointF 結構的新執行個體。Initializes a new instance of the SizeF structure from the specified PointF structure.

SizeF(SizeF)

從現有的指定 SizeF 結構,初始化 SizeF 結構的新執行個體。Initializes a new instance of the SizeF structure from the specified existing SizeF structure.

SizeF(Single, Single)

從指定的維度,初始化 SizeF 結構的新執行個體。Initializes a new instance of the SizeF structure from the specified dimensions.

SizeF(PointF)

從指定的 SizeF 結構,初始化 PointF 結構的新執行個體。Initializes a new instance of the SizeF structure from the specified PointF structure.

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)

參數

pt
PointF

PointF 結構,從其中初始化這個 SizeF 結構。The PointF structure from which to initialize this SizeF structure.

SizeF(SizeF)

從現有的指定 SizeF 結構,初始化 SizeF 結構的新執行個體。Initializes a new instance of the SizeF structure from the specified existing SizeF structure.

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)

參數

size
SizeF

SizeF 結構,從其中建立新的 SizeF 結構。The SizeF structure from which to create the new SizeF structure.

SizeF(Single, Single)

從指定的維度,初始化 SizeF 結構的新執行個體。Initializes a new instance of the SizeF structure from the specified dimensions.

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)

參數

width
Single

SizeF 結構的寬度元件。The width component of the new SizeF structure.

height
Single

SizeF 結構的高度元件。The height component of the new SizeF structure.

範例

下列ListBox程式碼範例會使用下列成員, 將陰影新增至:The following code example adds a shadow to a ListBox by using the following members:

這個範例是設計來與 Windows Form 搭配使用。This example is designed to be used with a Windows Form. 若要執行此範例, 請將此程式碼貼到窗AddShadow體中, 並在處理Paint表單的事件時呼叫方法。To run this example, paste this code into a form and call the AddShadow method when handling the form's Paint event. 確認表單包含名為ListBox listBox1的。Verify that the form contains a ListBox named listBox1.

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

適用於