XtGetSelectionValueIncremental(3Xt)XtGetSelectionValueIncremental(3Xt)NAME
XtGetSelectionValueIncremental, XtGetSelectionValuesIncremental -
obtain selection values
SYNOPSIS
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
Specifies the callback procedure that is to be called when the selec‐
tion value has been obtained. Specifies the argument that is to be
passed to the specified procedure when it is called. Specifies the
client data (one for each target type) that is passed to the callback
procedure when it is called for that target. Specifies the length of
the targets and client_data lists. Specifies the particular selection
desired (that is, primary or secondary). Specifies the type of the
information that is needed about the selection. Specifies the types of
information that is needed about the selection. Specifies the time‐
stamp that indicates when the selection value is desired. Specifies
the widget that is making the request.
DESCRIPTION
The XtGetSelectionValueIncremental function is similar to XtGetSelec‐
tionValue 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 mid‐
dle of a transfer (for example, because to timeout), the selec‐
tion_callback procedure is called with a type value equal to the sym‐
bolic 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 XtGetSelec‐
tionValueIncremental except that it takes a list of target types and a
list of client data and obtains the current value of the selection con‐
verted 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
XtGetSelectionValueIncremental(3Xt)
