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Graphics.DrawImageUnscaled Method (Image, Rectangle)

Draws a specified image using its original physical size at a specified location.

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

member DrawImageUnscaled : 
        image:Image * 
        rect:Rectangle -> unit

Parameters

image
Type: System.Drawing.Image

Image to draw.

rect
Type: System.Drawing.Rectangle

Rectangle that specifies the upper-left corner of the drawn image. The X and Y properties of the rectangle specify the upper-left corner. The Width and Height properties are ignored.

ExceptionCondition
ArgumentNullException

image is a null reference (Nothing in Visual Basic).

An Image stores a value for pixel width and a value for horizontal resolution (dots per inch). The physical width, measured in inches, of an image is the pixel width divided by the horizontal resolution. For example, an image with a pixel width of 216 and a horizontal resolution of 72 dots per inch has a physical width of 3 inches. Similar remarks apply to pixel height and physical height.

The DrawImageUnscaled method draws an image using its physical size, so the image will have its correct size in inches regardless of the resolution (dots per inch) of the display device. For example, suppose an image has a pixel width of 216 and a horizontal resolution of 72 dots per inch. If you call DrawImageUnscaled to draw that image on a device that has a resolution of 96 dots per inch, the pixel width of the rendered image will be (216/72)*96 = 288.

.NET Framework

Supported in: 4.6, 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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