GDDM-GKS V1R1 Programming Guide and Reference
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GQCHW

GDDM-GKS V1R1 Programming Guide and Reference
SC33-0334-00
Purpose
 GQCHW  (errind, chw)
   
 APL code  1438
 GKS RCP code  X'38008C00' (939559936)
   
Function: To inquire character width.
Inquiry function. Returns the current character width from the GKS state list.
Parameters

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

chw (returned by GDDM) (short floating point)
The current character width in world coordinates.
Operating states
GKOP, WSOP, WSAC, SGOP
Related functions
Set character height (GSCHH)
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
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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