INQUIRE LIST OF VIEW INDICES(3P) — Kubota Pacfic Computer Inc. (29 February 1991)

NAME

INQUIRE LIST OF VIEW INDICES− inquire list of view indices defined on a workstation

SYNOPSIS

C Syntax

void
pinq_list_view_inds ( ws, length, start, error_ind, indices, total_length )
Pintws;workstation identifier
Pintlength;length of application list
Pintstart;starting position
Pint∗error_ind;OUT error indicator
Pint_list∗indices;OUT list of view indices
Pint∗total_length;OUT length of list in PHIGS

Required PHIGS Operating States

(PHOP, WSOP, ∗, ∗)

DESCRIPTION

Purpose

Use INQUIRE LIST OF VIEW INDICES to obtain a list of the currently defined view indices on the specified workstation. The list is in order of decreasing view transformation input priority.

The defined view table indices are conceptually sparse; a PHIGS implementation could allow definition of n view representations with arbitrary indices. However, view indices are nonsparse in PEX-SI; the n settable view representations necessarily have indices 1 through n.

C Input Parameters

wsThe workstation identifier of the workstation whose view indices are to be returned.

lengthNumber of items for which the application has allocated memory in the output parameter indices. 0 can be specified, in order to get the total length of the list.

startStarting position in the ordered list at which to begin the inquiry.

C Output Parameters

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

indicesA pointer to a Pint_list structure in which the system returns the portion of the list of currently defined view indices, starting at the entry specified with start.

Pint_list is defined in phigs.h as follows:

typedef struct {
Pint num_ints; /∗ number of Pints in list ∗/
Pint ∗ints;/∗ list of integers ∗/

} Pint_list; The pointer indices→ints must be initialized to an array of length Pint elements.

total_length
A pointer to an integer in which to return the total length of the list. This is the value required for length if all the items in the list are to be returned.

ERRORS

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

054Ignoring function, the specified workstation is not open

057Ignoring function, specified workstation is of category MI

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