Point.Addition(Point, Size) 运算符

定义

Point 平移给定 SizeTranslates a Point by a given Size.

public:
 static System::Drawing::Point operator +(System::Drawing::Point pt, System::Drawing::Size sz);
public static System.Drawing.Point operator + (System.Drawing.Point pt, System.Drawing.Size sz);
static member ( + ) : System.Drawing.Point * System.Drawing.Size -> System.Drawing.Point
Public Shared Operator + (pt As Point, sz As Size) As Point

参数

pt
Point

要平移的 PointThe Point to translate.

sz
Size

Size,它指定要添加到 pt 的坐标的数字对。A Size that specifies the pair of numbers to add to the coordinates of pt.

返回

转换的 PointThe translated Point.

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来创建点和大小。The following code example creates points and sizes using several of the overloaded operators defined for these types. 它还演示了如何使用 SystemPens 类。It also demonstrates how to use the SystemPens class.

此示例旨在与 Windows 窗体一起使用。This example is designed to be used with Windows Forms. 创建一个包含名为 subtractButtonButton 的窗体。Create a form that contains a Button named subtractButton. 将代码粘贴到窗体中,并从窗体的 Paint 事件处理方法中调用 CreatePointsAndSizes 方法,并将 e 作为 PaintEventArgs传递。Paste the code into the form and call the CreatePointsAndSizes method from the form's Paint event-handling method, passing e as PaintEventArgs.

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

适用于