GDDM-GKS V1R1 Programming Guide and Reference
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GQPARF

GDDM-GKS V1R1 Programming Guide and Reference
SC33-0334-00
Purpose
 GQPARF  (errinf, rfx, rfy)
   
 APL code  1445
 GKS RCP code  X'38009200' (939561472)
   
Function: To inquire pattern reference point.
Inquiry function. Returns the current value of the pattern reference point from the GKS state list.
Parameters

errinf (returned by GDDM) (fullword integer)
The error indicator.

rfx (returned by GDDM) (short floating point)

rfy (returned by GDDM) (short floating point)
The current pattern reference point in world coordinates.
Operating states
GKOP, WSOP, WSAC, SGOP
Related functions
Set pattern reference point (GSPARF)
Description
If the inquired information is available, it is returned as output, and errind is returned as 0 (zero). If the inquired information is not available, all output is invalid, and errind returns an error indicator.
Principal errors
8
GKS not in proper state: GKS shall be in one of the states GKOP, WSOP, WSAC, or SGOP

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