MAN page from Mandriva 2010 libxext6-devel-1.1.1-2mdv2010.1.i586.rpm

DPMSQueryExtension

Section: X FUNCTIONS (3)
Updated: libXext 1.1.1
Index

NAME

DPMSQueryExtension - queries the X server to determine the availabilityof the DPMS Extension

SYNOPSIS

cc [ flag ... ] file ... -lXext [ library ... ]#include <X11/extensions/dpms.h>Bool DPMSQueryExtension(
      Display *display,
      int *event_base,
      int *error_base );

ARGUMENTS

display: Specifies the connection to the X server
event_base: Specifies the return location for the assigned base event
error_base: Specifies the return location for the assigned base error

DESCRIPTION

The DPMSQueryExtension function queries the X server to determine the availability of theDisplay Power Management Signaling (DPMS) Extension. If the extension is available, it returns TRUE, and theevent_baseand error_baseare set to the base event and error numbers, respectively. Otherwise, the return value is FALSE, and the values ofevent_baseand error_base are undefined.

RETURN VALUES

TRUE: The DPMSQueryExtension function returns TRUE if the extension is available, andevent_baseand error_baseare set to the base event number and base error number for the extension, respectively.
FALSE: The DPMSQueryExtension function returns FALSE if extension is not available, and the values ofevent_baseand error_base are undefined.

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