Cursor.Dispose Méthode

Définition

Libère toutes les ressources utilisées par Cursor.Releases all resources used by the Cursor.

public:
 virtual void Dispose();
public void Dispose ();
abstract member Dispose : unit -> unit
override this.Dispose : unit -> unit
Public Sub Dispose ()

Implémente

Exemples

L’exemple de code suivant dessine le curseur spécifié sur le formulaire dans sa taille normale et en mode étiré, deux fois sa taille.The following code example draws the specified cursor on the form in its normal size, and in stretched mode, twice its size. Cet exemple requiert qu' Form un et Cursor un soient transmis à la méthode quand elle est appelée.This example requires a Form and a Cursor to pass into the method when it is called.

void DrawCursorsOnForm( System::Windows::Forms::Cursor^ cursor )
{
   
   // If the form's cursor is not the Hand cursor and the
   // Current cursor is the Default, Draw the specified
   // cursor on the form in normal size and twice normal size.
   if ( this->Cursor != Cursors::Hand && System::Windows::Forms::Cursor::Current == Cursors::Default )
   {
      
      // Draw the cursor stretched.
      Graphics^ graphics = this->CreateGraphics();
      Rectangle rectangle = Rectangle(Point(10,10),System::Drawing::Size( cursor->Size.Width * 2, cursor->Size.Height * 2 ));
      cursor->DrawStretched( graphics, rectangle );
      
      // Draw the cursor in normal size.
      rectangle.Location = Point(rectangle.Width + rectangle.Location.X,rectangle.Height + rectangle.Location.Y);
      rectangle.Size = cursor->Size;
      cursor->Draw( graphics, rectangle );
      
      // Dispose of the cursor.
      delete cursor;
   }
}
private void DrawCursorsOnForm(Cursor cursor)
{
   // If the form's cursor is not the Hand cursor and the 
   // Current cursor is the Default, Draw the specified 
   // cursor on the form in normal size and twice normal size.
   if(this.Cursor != Cursors.Hand & 
     Cursor.Current == Cursors.Default)
   {
      // Draw the cursor stretched.
      Graphics graphics = this.CreateGraphics();
      Rectangle rectangle = new Rectangle(
        new Point(10,10), new Size(cursor.Size.Width * 2, 
        cursor.Size.Height * 2));
      cursor.DrawStretched(graphics, rectangle);
        
      // Draw the cursor in normal size.
      rectangle.Location = new Point(
      rectangle.Width + rectangle.Location.X, 
        rectangle.Height + rectangle.Location.Y);
      rectangle.Size = cursor.Size;
      cursor.Draw(graphics, rectangle);

      // Dispose of the cursor.
      cursor.Dispose();
   }
}
Private Sub DrawCursorsOnForm(cursor As Cursor)
   ' If the form's cursor is not the Hand cursor and the 
   ' Current cursor is the Default, Draw the specified 
   ' cursor on the form in normal size and twice normal size. 
   If (Not Me.Cursor.Equals(Cursors.Hand)) And _
     Cursor.Current.Equals(Cursors.Default) Then

      ' Draw the cursor stretched.
      Dim graphics As Graphics = Me.CreateGraphics()
      Dim rectangle As New Rectangle(New Point(10, 10), _
        New Size(cursor.Size.Width * 2, cursor.Size.Height * 2))
      cursor.DrawStretched(graphics, rectangle)
     
      ' Draw the cursor in normal size.
      rectangle.Location = New Point(rectangle.Width + _
        rectangle.Location.X, rectangle.Height + rectangle.Location.Y)
      rectangle.Size = cursor.Size
      cursor.Draw(graphics, rectangle)

      ' Dispose of the cursor.
      cursor.Dispose()
   End If
End Sub

Remarques

Appelez la méthode Dispose une fois que vous avez terminé d'utiliser Cursor.Call Dispose when you are finished using the Cursor. La méthode Dispose rend le Cursor inutilisable.The Dispose method leaves the Cursor in an unusable state. Après avoir Disposeappelé, vous devez libérer toutes les références Cursor à pour que le garbage collector puisse récupérer la mémoire occupée Cursor par le.After calling Dispose, you must release all references to the Cursor so the garbage collector can reclaim the memory that the Cursor was occupying. Pour plus d’informations, consultez nettoyage des ressources non managées et implémentation d’une méthode dispose.For more information, see Cleaning Up Unmanaged Resources and Implementing a Dispose Method.

Notes

Appelez toujours Dispose avant de libérer votre dernière référence à Cursor.Always call Dispose before you release your last reference to the Cursor. Dans le cas contraire, les ressources utilisées ne seront pas libérées tant que le garbage collector ne l’a pas libérée.Otherwise, the resources it is using will not be freed until the garbage collector frees it.

S’applique à