PointF.Equality(PointF, PointF) 运算符

定义

命名空间:

System.Drawing

程序集:

System.Drawing.Primitives.dll

Source:

PointF.cs

比较两个 PointF 结构。 此结果指定两个 X 结构的 Y 和 PointF 属性的值是否相等。

public:
 static bool operator ==(System::Drawing::PointF left, System::Drawing::PointF right);

public static bool operator == (System.Drawing.PointF left, System.Drawing.PointF right);

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

Public Shared Operator == (left As PointF, right As PointF) As Boolean

参数

left

PointF

要比较的 PointF。

right

PointF

要比较的 PointF。

返回

Boolean

如果左边和右边的 X 结构的 Y 和 PointF 值相等，为 true；否则为 false。

示例

下面的代码示例演示如何使用 Equality 运算符。 若要运行此示例，请将以下代码粘贴到 Windows 窗体中。 处理窗体的事件 Paint 并调用 opAdditionExample，作为 ePaintEventArgs传递。

private void OpAdditionExample(PaintEventArgs e)
{
    PointF point1 = new PointF(120.5F, 120F);
    SizeF size1 = new SizeF(120.5F, 30.5F);
    RectangleF rect1 = new RectangleF(point1, size1);
    if (new PointF(rect1.Right, rect1.Bottom) == point1 + size1)
        e.Graphics.DrawString("They are equal", this.Font, Brushes.Black, rect1);
    else
        e.Graphics.DrawString("They are not equal", this.Font, Brushes.Red, rect1);
}

Private Sub OpAdditionExample(ByVal e As PaintEventArgs) 
    Dim size1 As New SizeF(120.5F, 30.5F)
    Dim point1 As New PointF(20.5F, 20F)
    Dim rect1 As New RectangleF(point1, size1)
    If New PointF(rect1.Right, rect1.Bottom) = point1 + size1 Then
        e.Graphics.DrawString("They are equal", Me.Font, Brushes.Black, rect1)
    Else
        e.Graphics.DrawString("They are not equal", Me.Font, Brushes.Red, rect1)
    End If
 
End Sub