Manual pages › X Window and screen libraries (3X)

XSeSelOwn(3X)

manipulate window selection

From the original Amiga UNIX 2.1 manual. Some things it mentions may not be in this release.

NAME

XSetSelectionOwner, XGetSelectionOwner, XConvertSelection - manipulate window selection

SYNTAX

XSetSelectionOwner(display, selection, owner, time)
      Display *display;
      Atom selection;
      Window owner;
      Time time;

Window XGetSelectionOwner(display, selection)
      Display *display;
      Atom selection;

XConvertSelection(display, selection, target, property,
requestor, time)
      Display *display;
      Atom selection, target;
      Atom property;
      Window requestor;
      Time time;

ARGUMENTS

display   Specifies the connection to the XWIN server.

owner     Specifies the owner of the specified selection
          atom.  You can pass a window or None.

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.

DESCRIPTION

     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
     XWIN server time.  Otherwise, the last-change time is set to
     the specified time, with CurrentTime replaced by the current
     server time.  If the owner window is specified as None, then
     the owner of the selection becomes None (that is, no owner).
     Otherwise, the owner of the selection becomes the client
     executing the request.

XWIN 3.0               Last change: 9/1/88                 .ie t

     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 XWIN server.  XGet-
     SelectionOwner returns the owner window, which is reported
     in SelectionRequest and SelectionClear events.  Selections
     are global to the XWIN server.

     XSetSelectionOwner can generate BadAtom and BadWindow
     errors.

     The XGetSelectionOwner function returns the window ID asso-
     ciated with the window that currently 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 target type:

•    If the specified selection has an owner, the XWIN

server sends a SelectionRequest event to that owner.

•    If no owner for the specified selection exists, the
     XWIN server generates a SelectionNotify event to the
     requestor with property None.

In either event, the arguments are passed on unchanged.
There are two predefined selection atoms: PRIMARY and SECON-
DARY.

XConvertSelection can generate BadAtom and BadWindow errors.

DIAGNOSTICS

BadAtom   A value for an Atom argument does not name a

defined Atom.

BadWindow A value for a Window argument does not name a