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

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)

Public Sub DrawImage ( _
	image As Image, _
	destPoints As PointF(), _
	srcRect As RectangleF, _
	srcUnit As GraphicsUnit, _
	imageAttr As ImageAttributes _


Type: System.Drawing.Image

Image to draw.

Type: System.Drawing.PointF()

Array of three PointF structures that define a parallelogram.

Type: System.Drawing.RectangleF

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

Type: System.Drawing.GraphicsUnit

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

Type: System.Drawing.Imaging.ImageAttributes

ImageAttributes that specifies recoloring and gamma information for the image object.


image is Nothing.

The destPoints parameter specifies three points of a parallelogram. The three PointF structures represent the upper-left, upper-right, and lower-left corners of the parallelogram. The fourth point is extrapolated from the first three to form a parallelogram.

The srcRect parameter specifies a rectangular portion of the image object to draw. This portion is scaled and sheared to fit inside the parallelogram specified by the destPoints 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 points that define a destination parallelogram 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 original image to the screen.

  • Creates an additional parallelogram in which to draw an adjusted image.

  • Creates and sets the attributes of the adjusted image to have a larger-than-usual gamma value.

  • Draws the adjusted image to the screen.

For the original, unadjusted destination parallelogram, the position locates the image on the screen, the size of the source rectangle and the size and shape of the destination parallelogram determines the scaling and shearing of the drawn image, and the size of the rectangle determines what portion of the original image is drawn to the screen.

Private Sub DrawImageParaFRectFAttrib(ByVal e As PaintEventArgs)

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

    ' Create parallelogram for drawing original image. 
    Dim ulCorner1 As New PointF(100.0F, 100.0F)
    Dim urCorner1 As New PointF(325.0F, 100.0F)
    Dim llCorner1 As New PointF(150.0F, 250.0F)
    Dim destPara1 As PointF() = {ulCorner1, urCorner1, llCorner1}

    ' Create rectangle for source image. 
    Dim srcRect As New RectangleF(50.0F, 50.0F, 150.0F, 150.0F)
    Dim units As GraphicsUnit = GraphicsUnit.Pixel

    ' Create parallelogram for drawing adjusted image. 
    Dim ulCorner2 As New PointF(325.0F, 100.0F)
    Dim urCorner2 As New PointF(550.0F, 100.0F)
    Dim llCorner2 As New PointF(375.0F, 250.0F)
    Dim destPara2 As PointF() = {ulCorner2, urCorner2, llCorner2}

    ' Draw original image to screen.
    e.Graphics.DrawImage(newImage, destPara1, srcRect, units)

    ' Create image attributes and set large gamma. 
    Dim imageAttr As New ImageAttributes

    ' Draw adjusted image to screen.
    e.Graphics.DrawImage(newImage, destPara2, srcRect, units, _
End Sub

.NET Framework

Supported in: 4.5.2, 4.5.1, 4.5, 4, 3.5, 3.0, 2.0, 1.1, 1.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

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

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