Table of Contents
- obtain selection values
void XtGetSelectionValueIncremental(w, selection,
target, callback, client_data, time)
void XtGetSelectionValuesIncremental(w, selection, targets, count, callback,
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
- 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.
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 timestamp
that indicates when the selection value is desired.
- Specifies the widget
that is making the request.
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.
X Toolkit Intrinsics - C Language Interface
Xlib - C Language X Interface
Table of Contents