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)
Extension. 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
extension 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
extension is not available, and the values of
event_base and error_base are undefined.

SEE ALSO

DPMSGetVersion(3)

X Version 11 libXext 1.3.6 DPMSQueryExtension(3)