XInternAtom(3X) XLIB FUNCTIONS XInternAtom(3X)NAMEXInternAtom - returns atom identifier
SYNTAX
Atom XInternAtom(display, atom_name, only_if_exists)
Display *display;
char *atom_name;
Bool only_if_exists;
ARGUMENTS
display Specifies the connection to the X server.
atom_name Specifies the name associated with the atom you want
returned.
only_if_exists
Specifies a Boolean value that indicates whether the atom
must be created.
DESCRIPTION
The XInternAtom function returns the atom identifier associated with
the specified atom_name string. If only_if_exists is False, the atom
is created if it does not exist. Therefore, XInternAtom can return
None. If the atom name is not in the Host Portable Character Encoding,
the result is implementation dependent. Uppercase and lowercase mat‐
ter; the strings ``thing'', ``Thing'', and ``thinG'' all designate dif‐
ferent atoms. The atom will remain defined even after the client's
connection closes. It will become undefined only when the last connec‐
tion to the X server closes.
XInternAtom can generate BadAlloc and BadValue errors.
DIAGNOSTICS
BadAlloc The server failed to allocate the requested resource or
server memory.
BadAtom A value for an Atom argument does not name a defined Atom.
BadValue Some numeric value falls outside the range of values accepted
by the request. Unless a specific range is specified for an
argument, the full range defined by the argument's type is
accepted. Any argument defined as a set of alternatives can
generate this error.
SEE ALSOXInternAtoms(3X), XGetAtomName(3X), XGetAtomNames(3X)X Version 11 Release 6 XInternAtom(3X)
