gtk:entry-set-icon-drag-source (entry pos tlist actions)

entry -- a gtk:entry widget
pos -- a gtk:entry-icon-position value
tlist -- a gtk:target-list instance with the targets (data formats) in which the data can be provided
actions -- a gdk:drag-action bitmask with the allowed drag actions

Sets up the icon at the given position so that GTK will start a drag operation when the user clicks and drags the icon. To handle the drag operation, you need to connect to the usual "drag-data-get" or possibly "drag-data-delete" signal, and use the gtk:entry-current-icon-drag-source function in your signal handler to find out if the drag was started from an icon.

By default, GTK uses the icon as the drag icon. You can use the "drag-begin" signal to set a different icon. Note that you have to use the g:signal-connect-after function to ensure that your signal handler gets executed after the default handler.