FreeBSD manual
download PDF document: XNoOp.3.pdf
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 1.8.7 XNoOp(3)