Size.Equality(Size, Size) 运算符

定义

命名空间:

System.Drawing

程序集:

System.Drawing.Primitives.dll

Source:

Size.cs

测试两个 Size 结构是否相等。

public:
 static bool operator ==(System::Drawing::Size sz1, System::Drawing::Size sz2);

public static bool operator == (System.Drawing.Size sz1, System.Drawing.Size sz2);

static member ( = ) : System.Drawing.Size * System.Drawing.Size -> bool

Public Shared Operator == (sz1 As Size, sz2 As Size) As Boolean

参数

sz1

Size

相等运算符左侧的 Size 结构。

sz2

Size

相等运算符右侧的 Size 结构。

返回

Boolean

如果 sz1 和 sz2 的宽度和高度均相等，则为 true；否则为 false。

示例

下面的代码示例使用为这些类型定义的多个重载运算符创建点和大小。 它还演示如何使用 SystemPens 类。

此示例旨在与 Windows 窗体 一起使用。 Create包含名为 subtractButton的Button窗体。 将代码粘贴到窗体中， CreatePointsAndSizes 并从窗体的事件 Paint 处理方法调用 方法，作为 ePaintEventArgs传递。

void CreatePointsAndSizes( PaintEventArgs^ e )
{
   // Create the starting point.
   Point startPoint = Point(subtractButton->Size);
   
   // Use the addition operator to get the end point.
   Point endPoint = startPoint + System::Drawing::Size( 140, 150 );
   
   // Draw a line between the points.
   e->Graphics->DrawLine( SystemPens::Highlight, startPoint, endPoint );
   
   // Convert the starting point to a size and compare it to the
   // subtractButton size.  
   System::Drawing::Size buttonSize = (System::Drawing::Size)startPoint;
   if ( buttonSize == subtractButton->Size )
   {
      e->Graphics->DrawString( "The sizes are equal.", gcnew System::Drawing::Font( this->Font,FontStyle::Italic ), Brushes::Indigo, 10.0F, 65.0F );
   }
}

private void CreatePointsAndSizes(PaintEventArgs e)
{

    // Create the starting point.
    Point startPoint = new Point(subtractButton.Size);

    // Use the addition operator to get the end point.
    Point endPoint = startPoint + new Size(140, 150);

    // Draw a line between the points.
    e.Graphics.DrawLine(SystemPens.Highlight, startPoint, endPoint);

    // Convert the starting point to a size and compare it to the
    // subtractButton size.  
    Size buttonSize = (Size)startPoint;
    if (buttonSize == subtractButton.Size)

        // If the sizes are equal, tell the user.
    {
        e.Graphics.DrawString("The sizes are equal.", 
            new Font(this.Font, FontStyle.Italic), 
            Brushes.Indigo, 10.0F, 65.0F);
    }
}

Private Sub CreatePointsAndSizes(ByVal e As PaintEventArgs)

    ' Create the starting point.
    Dim startPoint As New Point(subtractButton.Size)

    ' Use the addition operator to get the end point.
    Dim endPoint As Point = Point.op_Addition(startPoint, _
        New Size(140, 150))

    ' Draw a line between the points.
    e.Graphics.DrawLine(SystemPens.Highlight, startPoint, endPoint)

    ' Convert the starting point to a size and compare it to the
    ' subtractButton size.  
    Dim buttonSize As Size = Point.op_Explicit(startPoint)
    If (Size.op_Equality(buttonSize, subtractButton.Size)) Then

        ' If the sizes are equal, tell the user.
        e.Graphics.DrawString("The sizes are equal.", _
            New Font(Me.Font, FontStyle.Italic), _
            Brushes.Indigo, 10.0F, 65.0F)
    End If

End Sub