NAME

       XtGetSelectionValueIncremental, XtGetSelectionValuesIncremental - obtain selection values

SYNTAX

       #include <X11/Intrinsic.h>

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

       void XtGetSelectionValuesIncremental(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 procedure 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 target.

       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 XtGetSelectionValue except that
       the selection_callback procedure will be called repeatedly 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 XtGetSelectionValueIncremental
       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.
       XtGetSelectionValuesIncremental does guarantee that all the conversions will use the same
       selection value because 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