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System.Drawing Namespace

The System.Drawing namespace provides access to GDI+ basic graphics functionality. More advanced functionality is provided in the System.Drawing.Drawing2D, System.Drawing.Imaging, and System.Drawing.Text namespaces.

The Graphics class provides methods for drawing to the display device. Classes such as Rectangle and Point encapsulate GDI+ primitives. The Pen class is used to draw lines and curves, while classes derived from the abstract class Brush are used to fill the interiors of shapes.

Caution note Caution

Classes within the System.Drawing namespace are not supported for use within a Windows or ASP.NET service. Attempting to use these classes from within one of these application types may produce unexpected problems, such as diminished service performance and run-time exceptions. For a supported alternative, see Windows Imaging Components.

  Class Description
Public class Bitmap Encapsulates a GDI+ bitmap, which consists of the pixel data for a graphics image and its attributes. A Bitmap is an object used to work with images defined by pixel data.
Public class BitmapSuffixInSameAssemblyAttribute Specifies that, when interpreting ToolboxBitmapAttribute declarations, the assembly should look for the indicated resources in the same assembly, but with the BitmapSuffix configuration value appended to the declared file name.
Public class BitmapSuffixInSatelliteAssemblyAttribute Specifies that, when interpreting ToolboxBitmapAttribute declarations, the assembly should look for the indicated resources in a satellite assembly, but with the BitmapSuffix configuration value appended to the declared file name.
Public class Brush Defines objects used to fill the interiors of graphical shapes such as rectangles, ellipses, pies, polygons, and paths.
Public class Brushes Brushes for all the standard colors. This class cannot be inherited.
Public class BufferedGraphics Provides a graphics buffer for double buffering.
Public class BufferedGraphicsContext Provides methods for creating graphics buffers that can be used for double buffering.
Public class BufferedGraphicsManager Provides access to the main buffered graphics context object for the application domain.
Public class ColorConverter Converts colors from one data type to another. Access this class through the TypeDescriptor.
Public class ColorTranslator Translates colors to and from GDI+ Color structures. This class cannot be inherited.
Public class Font Defines a particular format for text, including font face, size, and style attributes. This class cannot be inherited.
Public class FontConverter Converts Font objects from one data type to another.
Public class FontConverter.FontNameConverter Infrastructure. FontConverter.FontNameConverter is a type converter that is used to convert a font name to and from various other representations.
Public class FontConverter.FontUnitConverter Infrastructure. Converts font units to and from other unit types.
Public class FontFamily Defines a group of type faces having a similar basic design and certain variations in styles. This class cannot be inherited.
Public class Graphics Encapsulates a GDI+ drawing surface. This class cannot be inherited.
Public class Icon Represents a Windows icon, which is a small bitmap image that is used to represent an object. Icons can be thought of as transparent bitmaps, although their size is determined by the system.
Public class IconConverter Converts an Icon object from one data type to another. Access this class through the TypeDescriptor object.
Public class Image An abstract base class that provides functionality for the Bitmap and Metafile descended classes.
Public class ImageAnimator Animates an image that has time-based frames.
Public class ImageConverter ImageConverter is a class that can be used to convert Image objects from one data type to another. Access this class through the TypeDescriptor object.
Public class ImageFormatConverter ImageFormatConverter is a class that can be used to convert ImageFormat objects from one data type to another. Access this class through the TypeDescriptor object.
Public class Pen Defines an object used to draw lines and curves. This class cannot be inherited.
Public class Pens Pens for all the standard colors. This class cannot be inherited.
Public class PointConverter Converts a Point object from one data type to another.
Public class RectangleConverter Converts rectangles from one data type to another. Access this class through the TypeDescriptor.
Public class Region Describes the interior of a graphics shape composed of rectangles and paths. This class cannot be inherited.
Public class SizeConverter The SizeConverter class is used to convert from one data type to another. Access this class through the TypeDescriptor object.
Public class SizeFConverter Converts SizeF objects from one type to another.
Public class SolidBrush Defines a brush of a single color. Brushes are used to fill graphics shapes, such as rectangles, ellipses, pies, polygons, and paths. This class cannot be inherited.
Public class StringFormat Encapsulates text layout information (such as alignment, orientation and tab stops) display manipulations (such as ellipsis insertion and national digit substitution) and OpenType features. This class cannot be inherited.
Public class SystemBrushes Each property of the SystemBrushes class is a SolidBrush that is the color of a Windows display element.
Public class SystemColors Each property of the SystemColors class is a Color structure that is the color of a Windows display element.
Public class SystemFonts Specifies the fonts used to display text in Windows display elements.
Public class SystemIcons Each property of the SystemIcons class is an Icon object for Windows system-wide icons. This class cannot be inherited.
Public class SystemPens Each property of the SystemPens class is a Pen that is the color of a Windows display element and that has a width of 1 pixel.
Public class TextureBrush Each property of the TextureBrush class is a Brush object that uses an image to fill the interior of a shape. This class cannot be inherited.
Public class ToolboxBitmapAttribute Allows you to specify an icon to represent a control in a container, such as the Microsoft Visual Studio Form Designer.
  Structure Description
Public structure CharacterRange Specifies a range of character positions within a string.
Public structure Color Represents an ARGB (alpha, red, green, blue) color.
Public structure Point Represents an ordered pair of integer x- and y-coordinates that defines a point in a two-dimensional plane.
Public structure PointF Represents an ordered pair of floating-point x- and y-coordinates that defines a point in a two-dimensional plane.
Public structure Rectangle Stores a set of four integers that represent the location and size of a rectangle
Public structure RectangleF Stores a set of four floating-point numbers that represent the location and size of a rectangle. For more advanced region functions, use a Region object.
Public structure Size Stores an ordered pair of integers, which specify a Height and Width.
Public structure SizeF Stores an ordered pair of floating-point numbers, typically the width and height of a rectangle.
  Interface Description
Public interface IDeviceContext Defines methods for obtaining and releasing an existing handle to a Windows device context.
  Delegate Description
Public delegate Graphics.DrawImageAbort Provides a callback method for deciding when the DrawImage method should prematurely cancel execution and stop drawing an image.
Public delegate Graphics.EnumerateMetafileProc Provides a callback method for the EnumerateMetafile method.
Public delegate Image.GetThumbnailImageAbort Provides a callback method for determining when the GetThumbnailImage method should prematurely cancel execution.
  Enumeration Description
Public enumeration ContentAlignment Specifies alignment of content on the drawing surface.
Public enumeration CopyPixelOperation Determines how the source color in a copy pixel operation is combined with the destination color to result in a final color.
Public enumeration FontStyle Specifies style information applied to text.
Public enumeration GraphicsUnit Specifies the unit of measure for the given data.
Public enumeration KnownColor Specifies the known system colors.
Public enumeration RotateFlipType Specifies how much an image is rotated and the axis used to flip the image.
Public enumeration StringAlignment Specifies the alignment of a text string relative to its layout rectangle.
Public enumeration StringDigitSubstitute The StringDigitSubstitute enumeration specifies how to substitute digits in a string according to a user's locale or language.
Public enumeration StringFormatFlags Specifies the display and layout information for text strings.
Public enumeration StringTrimming Specifies how to trim characters from a string that does not completely fit into a layout shape.
Public enumeration StringUnit Specifies the units of measure for a text string.
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