XSetSelectionOwner(3) XLIB FUNCTIONS XSetSelectionOwner(3)
XSetSelectionOwner, XGetSelectionOwner, XConvertSelection - manipulate window selection
int XSetSelectionOwner(Display *display, Atom selection, Window owner, Time time);
Window XGetSelectionOwner(Display *display, Atom selection);
int XConvertSelection(Display *display, Atom selection, Atom target, Atom property, Window
requestor, Time time);
display Specifies the connection to the X server.
owner Specifies the owner of the specified selection atom. You can pass a window or
property Specifies the property name. You also can pass None.
requestor Specifies the requestor.
selection Specifies the selection atom.
target Specifies the target atom.
time Specifies the time. You can pass either a timestamp or CurrentTime.
The XSetSelectionOwner function changes the owner and last-change time for the specified
selection and has no effect if the specified time is earlier than the current last-change
time of the specified selection or is later than the current X server time. Otherwise,
the last-change time is set to the specified time, with CurrentTime replaced by the cur-
rent server time. If the owner window is specified as None, then the owner of the selec-
tion becomes None (that is, no owner). Otherwise, the owner of the selection becomes the
client executing the request.
If the new owner (whether a client or None) is not the same as the current owner of the
selection and the current owner is not None, the current owner is sent a SelectionClear
event. If the client that is the owner of a selection is later terminated (that is, its
connection is closed) or if the owner window it has specified in the request is later
destroyed, the owner of the selection automatically reverts to None, but the last-change
time is not affected. The selection atom is uninterpreted by the X server. XGetSelec-
tionOwner returns the owner window, which is reported in SelectionRequest and Selection-
Clear events. Selections are global to the X server.
XSetSelectionOwner can generate BadAtom and BadWindow errors.
The XGetSelectionOwner function returns the window ID associated with the window that cur-
rently owns the specified selection. If no selection was specified, the function returns
the constant None. If None is returned, there is no owner for the selection.
XGetSelectionOwner can generate a BadAtom error.
XConvertSelection requests that the specified selection be converted to the specified tar-
o If the specified selection has an owner, the X server sends a SelectionRequest event
to that owner.
o If no owner for the specified selection exists, the X server generates a SelectionNo-
tify event to the requestor with property None.
The arguments are passed on unchanged in either of the events. There are two predefined
selection atoms: PRIMARY and SECONDARY.
XConvertSelection can generate BadAtom and BadWindow errors.
BadAtom A value for an Atom argument does not name a defined Atom.
BadWindow A value for a Window argument does not name a defined Window.
Xlib - C Language X Interface
X Version 11 libX11 1.3.2 XSetSelectionOwner(3)