DragSource.setContent
void setContent(gdk.content_provider.ContentProvider content = null)Sets a content provider on a gtk.drag_source.DragSource.
When the data is requested in the cause of a DND operation, it will be obtained from the content provider.
This function can be called before a drag is started, or in a handler for the gtk.drag_source.DragSource.prepare signal.
You may consider setting the content provider back to null in a gtk.drag_source.DragSource.dragEnd signal handler.
Parameters
content | a gdk.content_provider.ContentProvider |