NAME
DPMSQueryExtension - queries the X server to determine the availability
of the DPMS Extension
SYNOPSIS
cccc [ _f_l_a_g ... ] _f_i_l_e ... -llXXeexxtt [ _l_i_b_r_a_r_y ... ]
#include
Bool DPMSQueryExtension
(
Display _*_d_i_s_p_l_a_y,
int _*_e_v_e_n_t___b_a_s_e,
int _*_e_r_r_o_r___b_a_s_e
);
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)