DPMSQueryExtension(3) X FUNCTIONS DPMSQueryExtension(3)
NAME
DPMSQueryExtension - queries the X server to determine the availability
of 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 the Display Power Management Signaling (DPMS) Exten-
sion. If the extension is available, it returns TRUE, and the
event_base and error_base are set to the base event and error numbers,
respectively. Otherwise, the return value is FALSE, and the values of
event_base and error_base are undefined.
RETURN VALUES
TRUE The DPMSQueryExtension function returns TRUE if the ex-
tension is available, and event_base and error_base are
set to the base event number and base error number for
the extension, respectively.
FALSE The DPMSQueryExtension function returns FALSE if exten-
sion is not available, and the values of event_base and
error_base are undefined.
SEE ALSO
DPMSGetVersion(3)
X Version 11 libXext 1.3.4 DPMSQueryExtension(3)
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