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XConvertSelection - manipulate window selection
- int XSetSelectionOwner(Display
*display, Atom selection,
- Window owner, Time time);
- Window XGetSelectionOwner(Display
- int XConvertSelection(Display *display, Atom
- Atom target, Atom property, Window requestor, Time time);
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.
the connection to the X server.
- Specifies the owner of the specified
selection atom. You can pass a window or None.
- Specifies the property
name. You also can pass None.
- Specifies the requestor.
the selection atom.
- Specifies the target atom.
- Specifies the time.
You can pass either a timestamp or CurrentTime.
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.
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
- 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.
can generate BadAtom and BadWindow errors.
Xlib - C Language
value for an Atom argument does not name a defined Atom.
- A value
for a Window argument does not name a defined Window.
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