KPG1_PQVID

Tests whether the current graphics device has suitable image-display characteristics

Description:

This routine determines whether the current graphics device is an image display with suitable characteristics. The checks are performed in the following order: the class of the device is checked against a supplied list of acceptable classes; the presence of certain attributes, given in a supplied list are checked in the order colour, input and open with reset; and finally a minimum number of colour indices must be exceeded.

Invocation

CALL KPG1_PQVID( PNDEV, CLASS, CRITER, MININT, UP, STATUS )

Arguments

PNDEV = CHARACTER ∗ ( ∗ ) (Given)
The ADAM parameter associated with the current graphics workstation. It is used to generate error messages.
CLASS = CHARACTER ∗ ( ∗ ) (Given)
A list of acceptable workstation classes as defined by GNS, each separated by a comma. See SUN/57 for a list. Note, as GNS does not yet support PGPLOT, no checks are mode on GNS class when using PGPLOT. Class checks are ignored if a blank string is supplied.
CRITER = CHARACTER ∗ ( ∗ ) (Given)
A list of criteria that the workstation must pass in order to be an acceptable image display. The options are: ’ COLOUR’ if colour must be available, ’ CURSOR’ if a cursor must be available on the workstation. Non-standard criteria will be ignored.
MININT = INTEGER (Given)
Minimum number of intensities or colour indices required. The routine ensures that there are at least the specified number.
UP = INTEGER (Returned)
The highest available colour index available.
STATUS = INTEGER (Given and Returned)
The global status.

Prior Requirements