NAME

INQUIRE EDGE REPRESENTATION − inquire an edge representation on a workstation

SYNOPSIS

C Syntax

void
pinq_edge_rep ( ws, index, type, error_ind, rep )
Pintws;workstation identifier
Pintindex;edge index
Pinq_typetype;type of returned value
Pint∗error_ind;OUT error indicator
Pedge_bundle∗rep;OUT edge representation

Required PHIGS Operating States

(PHOP, WSOP, ∗, ∗)

DESCRIPTION

Purpose

Use INQUIRE EDGE REPRESENTATION to determine the current attribute values for a specified entry in a specified workstation’s table of defined edge representations. 

See the description of the subroutine SET EDGE REPRESENTATION for information on the meaning of these attribute values. 

C Input Parameters

wsWorkstation identifier. 

indexEntry to be returned from the workstation’s table of edge representations; if this entry is not present in the table and the type of returned value parameter is REALIZED, the representation for edge index 1 is returned. 

typeAn enumerated value specifying whether the inquired values are to be returned as the values originally specified by the application (SET), or as the values actually being used by the workstation if any of the application-specified values had to be mapped to ones available on the workstation (REALIZED).  Valid values are defined in phigs.h as:

PINQ_SETReturn Application-specified Value
PINQ_REALIZED Return Value Available on the Workstation

C Output Parameters

error_ind
A pointer to the location to store the error number of any error detected by this function.

repA pointer to a Pedge_bundle structure in which the system returns the edge representation at index in the workstation’s table of edge representations.  Pedge_bundle is defined in phigs.h as follows:

typedef struct {
Pedge_flagflag;/∗ edge flag ∗/
Pinttype;/∗ edgetype ∗/
Pfloatwidth;/∗ edgewidth scale factor ∗/
Pintcolr_ind;/∗ edge colour index ∗/
} Pedge_bundle;

Valid values for the Pedge_flag enumerated type are defined in phigs.h as:

PEDGE_OFF
PEDGE_ON

ERRORS

003Ignoring function, function requires state (PHOP, WSOP, ∗, ∗)

054Ignoring function, the specified workstation is not open

059Ignoring function, the specified workstation does not have output capability (in other words, the workstation category is neither OUTPUT, OUTIN, nor MO)

100Ignoring function, the bundle index value is less than one

101Ignoring function, the specified representation has not been defined

SEE ALSO

INQUIRE EDGE FACILITIES (3P)
SET EDGE REPRESENTATION (3P)
INQUIRE PREDEFINED EDGE REPRESENTATION (3P)
INQUIRE EDGE REPRESENTATION PLUS (3P+)

September 02, 1992