1DPMSQueryExtension(3)             X FUNCTIONS            DPMSQueryExtension(3)
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NAME

6       DPMSQueryExtension - queries the X server to determine the availability
7       of the DPMS Extension
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SYNOPSIS

10       cc [ flag ... ] file ... -lXext [ library ... ]
11       #include <X11/extensions/dpms.h>
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13       Bool DPMSQueryExtension
14              (
15                    Display *display,
16                    int *event_base,
17                    int *error_base
18              );
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ARGUMENTS

21       display
22              Specifies the connection to the X server
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24       event_base
25              Specifies the return location for the assigned base event
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27       error_base
28              Specifies the return location for the assigned base error
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DESCRIPTION

31       The DPMSQueryExtension function queries the X server to  determine  the
32       availability  of  the  Display Power Management Signaling (DPMS) Exten‐
33       sion.  If  the  extension  is  available,  it  returns  TRUE,  and  the
34       event_base  and error_base are set to the base event and error numbers,
35       respectively.  Otherwise, the return value is FALSE, and the values  of
36       event_base and error_base are undefined.
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RETURN VALUES

39       TRUE           The  DPMSQueryExtension  function  returns  TRUE  if the
40                      extension is available, and  event_base  and  error_base
41                      are  set  to the base event number and base error number
42                      for the extension, respectively.
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44       FALSE          The DPMSQueryExtension function returns FALSE if  exten‐
45                      sion  is not available, and the values of event_base and
46                      error_base are undefined.
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SEE ALSO

49       DPMSGetVersion(3)
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53X Version 11                     libXext 1.3.3           DPMSQueryExtension(3)
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