Icon.ToBitmap 方法

public:
 System::Drawing::Bitmap ^ ToBitmap();

public System.Drawing.Bitmap ToBitmap();

member this.ToBitmap : unit -> System.Drawing.Bitmap

Public Function ToBitmap () As Bitmap

返回

一 Bitmap 个表示已 Icon转换的 。

示例

下面的代码示例演示如何使用 ToBitmap 该方法。 此示例旨在与 Windows 窗体一起使用。 创建窗体并将以下代码粘贴到其中。 IconToBitmap在表单的 .Paint事件处理程序中调用该方法，并e作为 PaintEventArgs .

private:
   void IconToBitmap( PaintEventArgs^ e )
   {
      // Construct an Icon.
      System::Drawing::Icon^ icon1 = gcnew System::Drawing::Icon( SystemIcons::Exclamation,40,40 );

      // Call ToBitmap to convert it.
      Bitmap^ bmp = icon1->ToBitmap();

      // Draw the bitmap.
      e->Graphics->DrawImage( bmp, Point(30,30) );
   }

private void IconToBitmap(PaintEventArgs e)
{
    // Construct an Icon.
    Icon icon1 = new Icon(SystemIcons.Exclamation, 40, 40);

    // Call ToBitmap to convert it.
    Bitmap bmp = icon1.ToBitmap();

    // Draw the bitmap.
    e.Graphics.DrawImage(bmp, new Point(30, 30));
}

Private Sub IconToBitmap(ByVal e As PaintEventArgs)

    ' Construct an Icon.
    Dim icon1 As New Icon(SystemIcons.Exclamation, 40, 40)

    ' Call ToBitmap to convert it.
    Dim bmp As Bitmap = icon1.ToBitmap()

    ' Draw the bitmap.
    e.Graphics.DrawImage(bmp, New Point(30, 30))
End Sub

注解

图标的透明区域在转换为位图时丢失，生成的位图的透明颜色设置为 RGB(13,11,12)。 返回的位图的高度和宽度与原始图标相同。