ISQCOM

GDDM V3R2 Base Application Programming Reference

ISQCOM

GDDM V3R2 Base Application Programming Reference
SC33-0868-02

Function

To query image compressions supported by the device.


   ISQCOM      (device, count, array)

   APL code               194
   GDDM RCP code          X'0C301800' (204478464)

Parameters

device (specified by user) (fullword integer)
The device whose supported image compressions are to be returned. Possible values are:

-1: an attached scanner
0: the current primary device (display, printer, or plotter)

count (specified by user) (fullword integer)
The number of elements in array. The number of image compressions supported are given by FSQURY.

array (returned by GDDM) (an array of fullword integers)
An array of image compressions supported by the device. Possible values are:

1

uncompressed

2

MMR (IBM 8815)

3

IBM 4250

4

IBM 3800

Note: MMR = modified-modified read.

Description

Returns the image compressions supported by the current primary device, or a scanner attached to it.

Note that this does not limit the compressions that can be specified (on, for example, an IMAGTS(-1,...) call), but defines which compressions can be used without requiring GDDM to perform automatic conversion, with a subsequent increase in host loading.

Principal errors

ADM3455 E: DEVICE n IS INVALID
ADM3459 E: COUNT n IS INVALID

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