☜	Effect on $KEY Draft MDC Standard					☞

1.2 Control-functions with an effect on $Key

Currently only one controlmnemonic may have a side-effect on special variable $Key: /DSR (device status report). The side-effect depends on the value of the parameter of this function: parameter-value 0 or 5 will cause a status report to be returned, parameter-value 6 will cause the active cursor-position to be returned. The format of the value returned is:

$Char(27,91)_REPORT_$Char(110)

or

$Char(27,91)_Y_$Char(59)_X_$Char(82)

where REPORT is a code for the status reported, Y is the value of the current Y-coordinate and X is the value of the current X-coordinate.

The values described will be reported in special variable $Key as a side-effect of the first Read command that is executed after the control-function has been issued.

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Copyright © Annotations: 2008-2024 Ed de Moel.

Some specifications are "approved for inclusion in a future standard". Note that the MUMPS Development Committee cannot guarantee that such future standards will indeed be published.

This page most recently updated on 28-Nov-2011, 21:33:04.

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