I think you can not use window.onload because this event actually starts
your GWT application. If you use it inside your GWT application the onload
has already been occurred.
With GWT 2.6 RC you could do (untested):
Element activeXObject = Document.get().getElementById("Draggable");
if(activeXObject == null) {
Window.alert("not found");
} else {
// requires GWT 2.6 RC. GWT 2.5.1 will complain that it does not know
DropCompleteEvent
DOM.sinkBitlessEvent(activeXObject, "DropCompleteEvent");
DOM.setEventListener(activeXObject, new EventListener() {
// implement.
}
}
You need to call DOM.setEventListener(activeXObject, null) once you are
done and the ActiveX control should be removed from the DOM. Otherwise you
get a memory leak.
If you can't use GWT 2.6 RC then you have to call your own JSNI method to
register the DropCompleteEvent and its handler but just don't do it in a
function that is attached to window.onload.
-- J.
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