XtGetSelectionValueIXcVersionlXtGetSelectionValueIncremental(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, callback, 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 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.
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XtGetSelectionValueIXcVersionlXtGetSelectionValueIncremental(3Xt)
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 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
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