This documentation is archived and is not being maintained.

Graphics.DrawImage Method (Image, RectangleF, RectangleF, GraphicsUnit)

.NET Framework 1.1

Draws the specified portion of the specified Image object at the specified location and with the specified size.

[Visual Basic]
Overloads Public Sub DrawImage( _
   ByVal image As Image, _
   ByVal destRect As RectangleF, _
   ByVal srcRect As RectangleF, _
   ByVal srcUnit As GraphicsUnit _
)
[C#]
public void DrawImage(
 Image image,
 RectangleF destRect,
 RectangleF srcRect,
 GraphicsUnit srcUnit
);
[C++]
public: void DrawImage(
 Image* image,
 RectangleF destRect,
 RectangleF srcRect,
 GraphicsUnit srcUnit
);
[JScript]
public function DrawImage(
   image : Image,
 destRect : RectangleF,
 srcRect : RectangleF,
 srcUnit : GraphicsUnit
);

Parameters

image
Image object to draw.
destRect
Rectangle structure that specifies the location and size of the drawn image. The image is scaled to fit the rectangle.
srcRect
Rectangle structure that specifies the portion of the image object to draw.
srcUnit
Member of the GraphicsUnit enumeration that specifies the units of measure used by the srcRect parameter.

Return Value

This method does not return a value.

Remarks

The srcRect parameter specifies a rectangular portion of the image object to draw. This portion is scaled to fit inside the rectangle specified by the destRect parameter.

Example

[Visual Basic, C#] The following example is designed for use with Windows Forms, and it requires PaintEventArgs e, which is a parameter of the Paint event handler. The code performs the following actions:

  • Creates an image from a JPEG file SampImag.jpg in the folder of the example.
  • Creates a destination rectangle in which to draw the image.
  • Creates a source rectangle from which to extract a portion of the image.
  • Sets the unit of measure of the source rectangle to pixels.
  • Draws the image to the screen.

[Visual Basic, C#] The position of the destination rectangle locates the image on the screen, the sizes of the source and destination rectangles determine the scaling of the drawn image, and the size of the source rectangle determines what portion of the original image is drawn to the screen.

[Visual Basic] 
Public Sub DrawImageRectFRectF(e As PaintEventArgs)
' Create image.
Dim newImage As Image = Image.FromFile("SampImag.jpg")
' Create rectangle for displaying image.
Dim destRect As New RectangleF(100F, 100F, 450F, 150F)
' Create rectangle for source image.
Dim srcRect As New RectangleF(50F, 50F, 150F, 150F)
Dim units As GraphicsUnit = GraphicsUnit.Pixel
' Draw image to screen.
e.Graphics.DrawImage(newImage, destRect, srcRect, units)
End Sub
        
[C#] 
public void DrawImageRectFRectF(PaintEventArgs e)
{
// Create image.
Image newImage = Image.FromFile("SampImag.jpg");
// Create rectangle for displaying image.
RectangleF destRect = new RectangleF( 100.0F, 100.0F, 450.0F, 150.0F);
// Create rectangle for source image.
RectangleF srcRect = new RectangleF( 50.0F, 50.0F, 150.0F, 150.0F);
GraphicsUnit units = GraphicsUnit.Pixel;
// Draw image to screen.
e.Graphics.DrawImage(newImage, destRect, srcRect, units);
}
        

[C++, JScript] No example is available for C++ or JScript. To view a Visual Basic or C# example, click the Language Filter button Language Filter in the upper-left corner of the page.

Requirements

Platforms: Windows 98, Windows NT 4.0, Windows Millennium Edition, Windows 2000, Windows XP Home Edition, Windows XP Professional, Windows Server 2003 family

See Also

Graphics Class | Graphics Members | System.Drawing Namespace | Graphics.DrawImage Overload List

Show: