XSetSelectionOwner(3X) XSetSelectionOwner(3X)
NAME
XSetSelectionOwner, XGetSelectionOwner,
XConvertSelection - manipulate window selection
SYNOPSIS
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 X 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 X 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).
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XSetSelectionOwner(3X) XSetSelectionOwner(3X)
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. XGetSelectionOwner
returns the owner window, which is reported in
SelectionRequest and SelectionClear 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 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 X
server sends a SelectionRequest event to that
owner.
⊕ If no owner for the specified selection exists,
the X 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
SECONDARY.
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
defined Window.
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XSetSelectionOwner(3X) XSetSelectionOwner(3X)
SEE ALSO
Xlib Programming Manual
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