Specifies the unit of measure for the given data.
Namespace: System.Drawing
Assembly: System.Drawing (in system.drawing.dll)
Visual Basic (Declaration)
Public Enumeration GraphicsUnit
Dim instance As GraphicsUnit
public enum class GraphicsUnit
| | Member name | Description |
|---|
| Display | Specifies the unit of measure of the display device. Typically pixels for video displays, and 1/100 inch for printers. |
| Document | Specifies the document unit (1/300 inch) as the unit of measure. |
| Inch | Specifies the inch as the unit of measure. |
| Millimeter | Specifies the millimeter as the unit of measure. |
.gif) | Pixel | Specifies a device pixel as the unit of measure. |
| Point | Specifies a printer's point (1/72 inch) as the unit of measure. |
| World | Specifies the world coordinate system unit as the unit of measure. |
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.
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
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();
}
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;
}
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
Windows 98, Windows Server 2000 SP4, Windows CE, Windows Millennium Edition, Windows Mobile for Pocket PC, Windows Mobile for Smartphone, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition
The Microsoft .NET Framework 3.0 is supported on Windows Vista, Microsoft Windows XP SP2, and Windows Server 2003 SP1.
.NET Framework
Supported in: 3.0, 2.0, 1.1, 1.0
.NET Compact Framework
Supported in: 2.0, 1.0