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

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

Namespace:  System.Drawing
Assembly:  System.Drawing (in System.Drawing.dll)

'Declaration
Public Sub DrawImage ( _
	image As Image, _
	destRect As Rectangle, _
	srcRect As Rectangle, _
	srcUnit As GraphicsUnit _
)
'Usage
Dim instance As Graphics 
Dim image As Image 
Dim destRect As Rectangle 
Dim srcRect As Rectangle 
Dim srcUnit As GraphicsUnit

instance.DrawImage(image, destRect, srcRect, _
	srcUnit)

Parameters

image
Type: System.Drawing.Image

Image to draw.

destRect
Type: System.Drawing.Rectangle

Rectangle structure that specifies the location and size of the drawn image. The image is scaled to fit the rectangle.

srcRect
Type: System.Drawing.Rectangle

Rectangle structure that specifies the portion of the image object to draw.

srcUnit
Type: System.Drawing.GraphicsUnit

Member of the GraphicsUnit enumeration that specifies the units of measure used by the srcRect parameter.

ExceptionCondition
ArgumentNullException

image is Nothing.

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.

The following code 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.

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.

Private Sub DrawImageRectRect(ByVal e As PaintEventArgs)

    ' Create image. 
    Dim newImage As Image = Image.FromFile("SampImag.jpg")

    ' Create rectangle for displaying image. 
    Dim destRect As New Rectangle(100, 100, 450, 150)

    ' Create rectangle for source image. 
    Dim srcRect As New Rectangle(50, 50, 150, 150)
    Dim units As GraphicsUnit = GraphicsUnit.Pixel

    ' Draw image to screen.
    e.Graphics.DrawImage(newImage, destRect, srcRect, units)
End Sub

Windows 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98, Windows CE, Windows Mobile for Smartphone, Windows Mobile for Pocket PC

The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

.NET Framework

Supported in: 3.5, 3.0, 2.0, 1.1, 1.0

.NET Compact Framework

Supported in: 3.5, 2.0, 1.0

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