XConnectionNumber() XConnectionNumber()
Name
XConnectionNumber, ConnectionNumber - get connection number or file descriptor.
Synopsis
int XConnectionNumber(display)
Display *display;
Arguments
display Specifies a connection to an X server; returned from XOpenDisplay().
Returns
The connection number.
Description
XConnectionNumber() returns the connection number for the specified display. On a POSIX-conformant system, this is the file descriptor of
the connection.
The C language macro ConnectionNumber() is equivalent and slightly more efficient.
Xlib - Macro Equivalents XConnectionNumber()
