xnoop(3) x11r4 man page | unix.com

XNoOp(3)							  XLIB FUNCTIONS							  XNoOp(3)

NAME
       XNoOp - No Operation

SYNTAX
       int XNoOp(Display *display);

ARGUMENTS
       display	 Specifies the connection to the X server.

DESCRIPTION
       The XNoOp function sends a NoOperation protocol request to the X server, thereby exercising the connection.

SEE ALSO
       Xlib - C Language X Interface

X Version 11							   libX11 1.2.1 							  XNoOp(3)