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.

クラス

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.

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.

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.

Brush

Defines objects used to fill the interiors of graphical shapes such as rectangles, ellipses, pies, polygons, and paths.

Brushes

Brushes for all the standard colors. This class cannot be inherited.

BufferedGraphics

Provides a graphics buffer for double buffering.

BufferedGraphicsContext

Provides methods for creating graphics buffers that can be used for double buffering.

BufferedGraphicsManager

Provides access to the main buffered graphics context object for the application domain.

ColorConverter

Converts colors from one data type to another. Access this class through the TypeDescriptor.

ColorTranslator

Translates colors to and from GDI+ Color structures. This class cannot be inherited.

Font

Defines a particular format for text, including font face, size, and style attributes. This class cannot be inherited.

FontConverter

Converts Font objects from one data type to another.

FontConverter.FontNameConverter

FontConverter.FontNameConverter is a type converter that is used to convert a font name to and from various other representations.

FontConverter.FontUnitConverter

Converts font units to and from other unit types.

FontFamily

Defines a group of type faces having a similar basic design and certain variations in styles. This class cannot be inherited.

Graphics

Encapsulates a GDI+ drawing surface. This class cannot be inherited.

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.

IconConverter

Converts an Icon object from one data type to another. Access this class through the TypeDescriptor object.

Image

An abstract base class that provides functionality for the Bitmap and Metafile descended classes.

ImageAnimator

Animates an image that has time-based frames.

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.

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.

Pen

Defines an object used to draw lines and curves. This class cannot be inherited.

Pens

Pens for all the standard colors. This class cannot be inherited.

PointConverter

Converts a Point object from one data type to another.

RectangleConverter

Converts rectangles from one data type to another. Access this class through the TypeDescriptor.

Region

Describes the interior of a graphics shape composed of rectangles and paths. This class cannot be inherited.

SizeConverter

The SizeConverter class is used to convert from one data type to another. Access this class through the TypeDescriptor object.

SizeFConverter

Converts SizeF objects from one type to another.

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.

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.

SystemBrushes

Each property of the SystemBrushes class is a SolidBrush that is the color of a Windows display element.

SystemColors

Each property of the SystemColors class is a Color structure that is the color of a Windows display element.

SystemFonts

Specifies the fonts used to display text in Windows display elements.

SystemIcons

Each property of the SystemIcons class is an Icon object for Windows system-wide icons. This class cannot be inherited.

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.

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.

ToolboxBitmapAttribute

Allows you to specify an icon to represent a control in a container, such as the Microsoft Visual Studio Form Designer.

構造体

CharacterRange

Specifies a range of character positions within a string.

Color

Represents an ARGB (alpha, red, green, blue) color.

Point

Represents an ordered pair of integer x- and y-coordinates that defines a point in a two-dimensional plane.

PointF

Represents an ordered pair of floating-point x- and y-coordinates that defines a point in a two-dimensional plane.

Rectangle

Stores a set of four integers that represent the location and size of a rectangle

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.

Size

Stores an ordered pair of integers, which specify a Height and Width.

SizeF

Stores an ordered pair of floating-point numbers, typically the width and height of a rectangle.

インターフェイス

IDeviceContext

Defines methods for obtaining and releasing an existing handle to a Windows device context.

列挙型

ContentAlignment

Specifies alignment of content on the drawing surface.

CopyPixelOperation

Determines how the source color in a copy pixel operation is combined with the destination color to result in a final color.

FontStyle

Specifies style information applied to text.

GraphicsUnit

Specifies the unit of measure for the given data.

KnownColor

Specifies the known system colors.

RotateFlipType

Specifies how much an image is rotated and the axis used to flip the image.

StringAlignment

Specifies the alignment of a text string relative to its layout rectangle.

StringDigitSubstitute

The StringDigitSubstitute enumeration specifies how to substitute digits in a string according to a user's locale or language.

StringFormatFlags

Specifies the display and layout information for text strings.

StringTrimming

Specifies how to trim characters from a string that does not completely fit into a layout shape.

StringUnit

Specifies the units of measure for a text string.

代理人

Graphics.DrawImageAbort

Provides a callback method for deciding when the DrawImage method should prematurely cancel execution and stop drawing an image.

Graphics.EnumerateMetafileProc

Provides a callback method for the EnumerateMetafile method.

Image.GetThumbnailImageAbort

Provides a callback method for determining when the GetThumbnailImage(Int32, Int32, Image+GetThumbnailImageAbort, IntPtr) method should prematurely cancel execution.

Remarks

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.

注意事項

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.