GraphicsUnit Enum
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Specifies the unit of measure for the given data.
public enum class GraphicsUnit
public enum GraphicsUnit
type GraphicsUnit =
Public Enum GraphicsUnit
- Inheritance
Name | Value | Description |
---|---|---|
World | 0 | Specifies the world coordinate system unit as the unit of measure. |
Display | 1 | Specifies the unit of measure of the display device. Typically pixels for video displays, and 1/100 inch for printers. |
Pixel | 2 | Specifies a device pixel as the unit of measure. |
Point | 3 | Specifies a printer's point (1/72 inch) as the unit of measure. |
Inch | 4 | Specifies the inch as the unit of measure. |
Document | 5 | Specifies the document unit (1/300 inch) as the unit of measure. |
Millimeter | 6 | Specifies the millimeter 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.
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.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();
}
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
Product | Versies |
---|---|
.NET | 8 (package-provided), 9 (package-provided) |
.NET Framework | 1.1, 2.0, 3.0, 3.5, 4.0, 4.5, 4.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7 (package-provided), 4.7, 4.7.1 (package-provided), 4.7.1, 4.7.2 (package-provided), 4.7.2, 4.8 (package-provided), 4.8, 4.8.1 |
.NET Standard | 2.0 (package-provided) |
Windows Desktop | 3.0, 3.1, 5, 6, 7, 8, 9 |
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