XSetSelectionOwner(3X11) X11 SDE 5.4R3.00 XSetSelectionOwner(3X11)
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 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). 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
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XSetSelectionOwner(3X11) X11 SDE 5.4R3.00 XSetSelectionOwner(3X11)
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.
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.
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.
SEE ALSO
Xlib - C Language X Interface
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