The following code example demonstrates how to load a bitmap from an Icon handle, using the GraphicsUnit enumeration, and the use of the Round method to draw the rectangle bounds of a bitmap.
This example is designed to be used with Windows Forms. Create a form that contains a button named Button2. Paste the code into the form and associate this method with the button's Click event.
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Private Sub Button2_Click(ByVal sender As System.Object, _
ByVal e As System.EventArgs) Handles Button2.Click
Dim bitmap1 As Bitmap = Bitmap.FromHicon(SystemIcons.Hand.Handle)
Dim formGraphics As Graphics = Me.CreateGraphics()
Dim units As GraphicsUnit = GraphicsUnit.Point
Dim bmpRectangleF As RectangleF = bitmap1.GetBounds(units)
Dim bmpRectangle As Rectangle = Rectangle.Round(bmpRectangleF)
formGraphics.DrawRectangle(Pens.Blue, bmpRectangle)
formGraphics.Dispose()
End Sub
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private void Button2_Click(System.Object sender, System.EventArgs e)
{
Bitmap bitmap1 = Bitmap.FromHicon(SystemIcons.Hand.Handle);
Graphics formGraphics = this.CreateGraphics();
GraphicsUnit units = GraphicsUnit.Point;
RectangleF bmpRectangleF = bitmap1.GetBounds(ref units);
Rectangle bmpRectangle = Rectangle.Round(bmpRectangleF);
formGraphics.DrawRectangle(Pens.Blue, bmpRectangle);
formGraphics.Dispose();
}
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void Button2_Click( System::Object^ /*sender*/, System::EventArgs^ /*e*/ )
{
Bitmap^ bitmap1 = Bitmap::FromHicon( SystemIcons::Hand->Handle );
Graphics^ formGraphics = this->CreateGraphics();
GraphicsUnit units = GraphicsUnit::Point;
RectangleF bmpRectangleF = bitmap1->GetBounds( units );
Rectangle bmpRectangle = Rectangle::Round( bmpRectangleF );
formGraphics->DrawRectangle( Pens::Blue, bmpRectangle );
delete formGraphics;
}
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private void button2_Click(System.Object sender, System.EventArgs e)
{
Bitmap bitmap1 = Bitmap.FromHicon(SystemIcons.get_Hand().get_Handle());
Graphics formGraphics = this.CreateGraphics();
GraphicsUnit units = GraphicsUnit.Point;
RectangleF bmpRectangleF = bitmap1.GetBounds(units);
Rectangle bmpRectangle = Rectangle.Round(bmpRectangleF);
formGraphics.DrawRectangle(Pens.get_Blue(), bmpRectangle);
formGraphics.Dispose();
} //button2_Click
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