This function returns the registered event pattern and the Tcl callback code that the Tcl interpreter evaluates after a event occurs that matches the event pattern.
l_bind_state_get(target, id)Character vector of length two. First element is the event pattern, the second element is the Tcl callback code.
either an object of class loon or a vector that specifies the
widget, layer, glyph, navigator or context completely. The widget is
specified by the widget path name (e.g. '.l0.plot'), the remaining
objects by their ids.
state binding id
Bindings, callbacks, and binding substitutions are described in detail in
loon's documentation webpage, i.e. run l_help("learn_R_bind")
l_bind_state, l_bind_state_ids,
l_bind_state_delete, l_bind_state_reorder