cc [ flag ... ] file ... -lXext [ library ... ] #include <X11/extensions/dpms.h> Status DPMSGetVersion( Display *display, int *major_version, int *minor_version );Argumentsdisplay Specifies the connection to the X server major_version Specifies the return location for the extension major version minor_version Specifies the return location for the extension minor version DescriptionThe DPMSGetVersion function returns the version of the Display Power Management Signaling (DPMS) extension implemented by the X server. It returns a major and minor version number. The major version number will be incremented for protocol incompatible changes, and the minor version number will be incremented for small, upward compatible changes. Return ValuesTRUE The DPMSGetVersion function returns TRUE when the extension is supported and values are returned. FALSE The DPMSGetVersion function returns FALSE when the extension is not supported. See AlsoDPMSCapable(3), DPMSQueryExtension(3)