XtGetSelectionValueIncremental(3XXT FUNCTIXtGetSelectionValueIncremental(3Xt)



NAME
  XtGetSelectionValueIncremental, XtGetSelectionValuesIncremental - obtain
  selection values

SYNTAX
  void XtGetSelectionValueIncremental(w, selection, target, callback,
  client_data, time)
	Widget w;
	Atom selection;
	Atom target;
	XtSelectionCallbackProc callback;
	XtPointer client_data;
	Time time;

  void XtGetSelectionValuesIncremental(w, selection, targets, count, call-
  back, client_data, time)
	Widget w;
	Atom selection;
	Atom *targets;
	int count;
	XtSelectionCallbackProc callback;
	XtPointer client_data;
	Time time;

ARGUMENTS

  callback  Specifies the callback procedure that is to be called when the
	    selection value has been obtained.

  client_data
	    Specifies the argument that is to be passed to the specified pro-
	    cedure when it is called.

  client_data
	    Specifies the client data (one for each target type) that is
	    passed to the callback procedure when it is called for that tar-
	    get.

  count	    Specifies the length of the targets and client_data lists.

  selection Specifies the particular selection desired (that is, primary or
	    secondary).

  target    Specifies the type of the information that is needed about the
	    selection.

  targets   Specifies the types of information that is needed about the
	    selection.

  time	    Specifies the timestamp that indicates when the selection value
	    is desired.

  w	    Specifies the widget that is making the request.

DESCRIPTION
  The XtGetSelectionValueIncremental function is similar to XtGetSelection-
  Value except that the selection_callback procedure will be called repeat-
  edly upon delivery of multiple segments of the selection value.  The end of
  the selection value is indicated when selection_callback is called with a
  non-NULL value of length zero, which must still be freed by the client. If
  the transfer of the selection is aborted in the middle of a transfer (for
  example, because to timeout), the selection_callback procedure is called
  with a type value equal to the symbolic constant XT_CONVERT_FAIL so that
  the requestor can dispose of the partial selection value it has collected
  up until that point. Upon receiving XT_CONVERT_FAIL, the requesting client
  must determine for itself whether or not a partially completed transfer is
  meaningful.

  The XtGetSelectionValuesIncremental function is similar to XtGetSelection-
  ValueIncremental except that it takes a list of target types and a list of
  client data and obtains the current value of the selection converted to
  each of the targets.	The effect is as if each target were specified in a
  separate call to XtGetSelectionValueIncremental.  The callback is called
  once with the corresponding client data for each target.  XtGetSelection-
  ValuesIncremental does guarantee that all the conversions will use the same
  selection value becaues the ownership of the selection cannot change in the
  middle of the list, as would be when calling XtGetSelectionValueIncremental
  repeatedly.

SEE ALSO
  X Toolkit Intrinsics - C Language Interface
  Xlib - C Language X Interface