DPMSQueryExtension (3)
Leading comments
Copyright \(co Digital Equipment Corporation, 1996 Permission to use, copy, modify, distribute, and sell this documentation for any purpose is hereby granted without fee, provided that the above copyright notice and this permission notice appear in all copies. Digital Equipment Corporation makes no representations about the suitability for any purpose of the information in this document. This documentation is provided ``as is'' without express or implied warranty. Copyright (c) 1999, 2005...
NAME
DPMSQueryExtension - queries the X server to determine the availability of the DPMS ExtensionSYNOPSIS
cc [ flag ... ] file ... -lXext [ library ... ] #include <X11/extensions/dpms.h>
- Bool DPMSQueryExtension (
- Display *display,
- int *event_base,
- int *error_base );
- int *event_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.