gtk-selection-convert (widget selection target time)

widget -- the gtk-widget object which acts as requestor
selection -- a gdk-atom as a string which selection to get
target -- a gdk-atom as a string with the form of information desired
time -- an unsigned integer with the time of request, usually of triggering event, in emergency, you could use the +gdk-current-time+ value

True if requested succeeded, false if we could not process request, e.g., there was already a request in process for this widget.

Requests the contents of a selection. When received, a "selection-received" signal will be generated.