XtGetSelectionValueIncremental(3) | XT FUNCTIONS | XtGetSelectionValueIncremental(3) |
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);
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
libXt 1.2.0 | X Version 11 |