Cursor.Draw(Graphics, Rectangle) メソッド

定義

カーソルを、指定した範囲内の、指定した表面に描画します。Draws the cursor on the specified surface, within the specified bounds.

public:
 void Draw(System::Drawing::Graphics ^ g, System::Drawing::Rectangle targetRect);
public void Draw (System.Drawing.Graphics g, System.Drawing.Rectangle targetRect);
member this.Draw : System.Drawing.Graphics * System.Drawing.Rectangle -> unit
Public Sub Draw (g As Graphics, targetRect As Rectangle)

パラメーター

g
Graphics

Cursor が描画される Graphics 表面。The Graphics surface on which to draw the Cursor.

targetRect
Rectangle

Cursor の境界を表す RectangleThe Rectangle that represents the bounds of the Cursor.

次のコード例では、指定されたカーソルを通常のサイズでフォームに描画し、拡大モードでサイズを2倍にします。The following code example draws the specified cursor on the form in its normal size, and in stretched mode, twice its size. この例では、メソッドが Form 呼び出され Cursor たときに、メソッドに渡すとオブジェクトが必要です。This example requires that you have a Form and a Cursor object 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

注釈

描画コマンドは、パラメーターによって表されるグラフィックスサーフェイスから生成されますが、には g Graphics 特定のイメージをレンダリングする方法に関する情報が含まれていないため、への呼び出しを渡し Cursor ます。The drawing command originates on the graphics surface represented by the g parameter, but a Graphics does not contain information about how to render a given image, so it passes the call to the Cursor. メソッドは、 Draw 指定された次元にイメージをトリミングし、を描画するを指定できるようにし Rectangle Cursor ます。The Draw method crops the image to the given dimensions and allows you to specify a Rectangle within which to draw the Cursor. このメソッドは、通常、グラフィックサーフェイス上にカーソルを描画する場合に使用します。This method is typically used if you want to draw the cursor on a Graphics surface. たとえば、ユーザーが ListBox コントロールまたはコントロールのグループからカーソルを選択できるダイアログが表示されている場合があり RadioButton ます。For example, you might have a dialog that allows the user to select cursors from a ListBox control, or a group of RadioButton controls.

適用対象

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