Screen.FromPoint(Point) 方法

public:
 static System::Windows::Forms::Screen ^ FromPoint(System::Drawing::Point point);

public static System.Windows.Forms.Screen FromPoint (System.Drawing.Point point);

static member FromPoint : System.Drawing.Point -> System.Windows.Forms.Screen

Public Shared Function FromPoint (point As Point) As Screen

參數

傳回

包含點之顯示的 Screen。 在任何顯示皆不包含點的多重顯示環境中，會傳回離指定點最近的顯示。

範例

下列程式碼範例示範如何使用 FromPoint 方法。 這個範例會 Point 建立 參考 所 MouseEventArgs 傳遞的 X 和 Y 座標，然後使用 FromPoint 方法來判斷按一下的點是否位於主要畫面上。

private:
   void Form1_MouseDown( Object^ /*sender*/, System::Windows::Forms::MouseEventArgs^ e )
   {
      Point p = Point(e->X,e->Y);
      Screen^ s = Screen::FromPoint( p );
      if ( s->Primary )
      {
         MessageBox::Show( "You clicked the primary screen" );
      }
      else
      {
         MessageBox::Show( "This isn't the primary screen" );
      }

private void Form1_MouseDown(object sender, System.Windows.Forms.MouseEventArgs e)
{
    Point p = new Point(e.X, e.Y);
    Screen s = Screen.FromPoint(p);
    
if (s.Primary)
{
    MessageBox.Show("You clicked the primary screen");
}
else
{
    MessageBox.Show("This isn't the primary screen");
}

Private Sub Form1_MouseDown(ByVal sender As Object, ByVal e As System.Windows.Forms.MouseEventArgs) Handles MyBase.MouseDown
    Dim p As New System.Drawing.Point(e.X, e.Y)
    Dim s As System.Windows.Forms.Screen = Screen.FromPoint(p)

    If s.Primary = True Then
        MessageBox.Show("You clicked the primary screen")
    Else
        MessageBox.Show("This isn't the primary screen")
    End If
End Sub

適用於

另請參閱

• FromControl(Control)
• FromHandle(IntPtr)
• FromRectangle(Rectangle)