XtGetSelectionValueIncremental, XtGetSelectionValuesIncremental - obtain selection values
XtGetSelectionValueIncremental(w, selection, target, callback, client_data, time)
XtGetSelectionValuesIncremental(w, selection, targets, count, callback, client_data, time)
Specifies the callback procedure that is to be called
when the selection 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
Specifies the type of the information that is needed about
Specifies the types of information that is needed about the
Specifies the timestamp that indicates when the selection
value is desired.
Specifies the widget that is making the request.
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.
function is similar
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.
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
X Toolkit Intrinsics -- C Language Interface
Xlib -- C Language X Interface