GSBND

Defines a data boundary.

GSCLP

Enables or disables clipping.

GSCLR

Deletes all graphics from the graphics field.

GSFLD

Defines the graphics field. The default is the entire page.

GSPS

Defines the picture space. The default is the entire graphics field.

GSUWIN

Defines a uniform graphics window such that the aspect ratio of the current viewport is preserved.

GSVIEW

Defines the current viewport. The default is the entire picture space.

GSWIN

Defines the current graphics window. The definition is used for all later graphics operations until it is redefined.

GSQBND

Returns the current data boundary definition.

GSQCEL

Returns the default graphics cell size in current window units.

GSQCLP

Returns the current clipping state.

GSQCUR

Returns the cursor position within the current window.

GSQFLD

Returns the position and size of the graphics field.

GSQPS

Returns the current picture space definition.

GSQVIE

Returns the current viewport definition.

GSQWIN

Returns the current window definition.

GSAM

Sets the attribute mode. If attributes are preserved, they may be restored by a call to GSPOP.

GSBMIX

Controls the way that the background color of a primitive is combined with the color of any primitive that it overlaps (background color-mix mode).

GSCA

Specifies a direction angle for the baseline of character strings. Ignored for mode-1 characters.

GSCB

Specifies the character-box size. Ignored for mode 1; controls spacing for mode 2; controls character size and spacing for mode 3.

GSCBS

Specifies the character-box spacing.

GSCD

Specifies the direction at which characters in a string are to be drawn, relative to the baseline direction specified by GSCA.

GSCH

Specifies the current character shear angle. Ignored for mode 1. Only affects positioning for mode 2.

GSCM

Specifies the character mode (mode-1, -2, or -3) to be used for graphics text.

GSCOL

Specifies the current color.

GSCS

Specifies the identifier of the symbol set to be used for graphics text.

GSDEFE

Ends the definition of drawing defaults.

GSDEFS

Starts the definition of drawing defaults.

GSFLW

Sets the current line width as a fractional value.

GSLT

Sets the current line type.

GSLW

Sets the current line width.

GSMB

Sets the size of the marker box.

GSMIX

Controls the way that the color of a primitive is combined with any underlying color (foreground color-mix mode).

GSMS

Specifies the current marker symbol to be used.

GSPAT

Specifies the current shading pattern.

GSPOP

Restores attributes to their previous values if preserved by a prior call to GSAM.

GSSCT

Specifies the current transform for scaling, shear, rotation, and displacement of graphics primitives.

GSSEN

Sets the mixed string attribute to enable double-byte (DBCS) and single-byte (SBCS) character sets to be mixed in the same string in graphics text.

GSSVL

Specifies the segment viewing limits.

GSTA

Specifies the graphics text alignment. This determines the positioning of the character box relative to the character baseline and start point.

GSQAM

Returns the current attribute mode.

GSQBMX

Returns the current background color-mixing mode.

GSQCA

Returns the direction angle for the baseline of character strings.

GSQCB

Returns the character-box size.

GSQCBS

Returns the character-box spacing.

GSQCD

Returns the direction at which characters in a string are drawn, relative to the baseline.

GSQCH

Returns the current character shear angle.

GSQCM

Returns the current character mode.

GSQCOL

Returns the current color.

GSQCP

Returns the current position.

GSQCS

Returns the identifier of the symbol set used for graphics text.

GSQFLW

Returns the current fractional line width.

GSQLT

Returns the current line type.

GSQLW

Returns the current line width.

GSQMB

Returns the size of the marker box.

GSQMIX

Returns the foreground color-mix mode.

GSQMS

Returns the current marker symbol.

GSQPAT

Returns the current shading pattern.

GSQSEN

Returns the graphics text mixed string attribute.

GSQSVL

Returns the segment viewing limits.

GSQTA

Returns the current graphics text alignment.

GSQTB

Queries details of the graphics text box occupied by a specified character string.

GSARC

Draws a circular arc about a specified point, starting at the current position and subtending a specified angle.

GSAREA

Starts the construction of a shaded area defined by subsequent line-drawing calls.

GSCHAP

Draws a specified character string starting at the current position.

GSCHAR

Draws a specified character string starting at a specified point. It is equivalent to a call to GSMOVE followed by a call to GSCHAP.

GSCP

Sets the current position to the specified point.

GSELPS

Draws an elliptical arc from the current position to a specified point.

GSENDA

Ends the construction of a shaded area.

GSLINE

Draws a straight line from the current position to a specified point.

GSMARK

Draws a single marker symbol at a specified point.

GSMRKS

Draws a series of marker symbols at specified points.

GSMOVE

Moves the current position to a specified point, without drawing.

GSPFLT

Draws a curved fillet defined by lines joining several points.

GSPLNE

Draws a sequence of lines, starting at the current position and passing through a specified set of points.

GSVECM

Combines moves and lines in any order, for a specified set of points. It is equivalent to a series of GSMOVE and GSLINE calls.

GSIMG

Draws an image at the current position. An image is a dot pattern stored as ones and zeros.

GSIMGS

Draws a scaled image.

CGSAVE

Saves segments or all the graphics data in the current GDDM page, into a Computer Graphics Metafile (CGM) on auxiliary storage.

CGLOAD

Retrieves a copy of a Computer Graphics Metafile (CGM) from auxiliary storage and loads it into the graphics field on the current GDDM page.

GSGET

Gets one record of graphics data from the current page.

GSGETE

Ends the retrieval of graphics data.

GSGETS

Starts the retrieval of graphics data.

GSLOAD

Retrieves a copy of a graphics data format (GDF) object from the segment library on auxiliary storage and loads it into the current GDDM page.

GSPUT

Puts graphics data into the current graphics viewport.

GSSAVE

Saves segments or all the graphics data from the current GDDM page and puts them into the segment library, as a GDF object, on auxiliary storage.

Subtopics:

• 2.5.1 Graphics segment functions
• 2.5.2 Interactive graphics functions