XtGetSelectionValueIncremental, XtGetSelectionValuesIncremental - obtain
selection values
#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);
- 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.
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.
X Toolkit Intrinsics - C Language Interface
Xlib - C Language X Interface