語言

Screen.FromPoint(Point) 方法

定義

命名空間:
System.Windows.Forms
組件:
System.Windows.Forms.dll
來源:
Screen.cs
來源:
Screen.cs
來源:
Screen.cs
來源:
Screen.cs
來源:
Screen.cs

取得包含指定點的顯示器的 a Screen 。

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

point
Point

Point A 指定取回 Screen。

傳回

Screen

A Screen 代表包含該點的顯示器。 在多個顯示環境中，若沒有任何顯示器包含該點，則會回傳最接近指定點的顯示器。

範例

下列程式代碼範例示範如何使用 FromPoint 方法。 此範例Point建立一個參考XYMouseEventArgs座標，並透過 ，並利用該FromPoint方法判斷點擊點是否在主螢幕上。

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

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