Up

_gtkWidgetCBevent

_gtkWidgetCBevent defines a callback to a Widgets object when a signal goes be emitted. This reflex will be called either before this signal or after (see flag, below).

Prototype : fun [* fun [* u0 S I] u1 u0 I I] *

• * : a Widgets object.


• fun [* u0 S I] u1 : a callback. These arguments are :
  1. * : the Widgets object (the emitter)
  2. u0 : the user parameter
  3. S : the GTK signal name (see below)
  4. I : the type of the signal


• u0 : a user parameter, at your convenience


• I : a flag (one of these values):
  • CB_EVENT : before the signal
  • CB_EVENTAFTER : after the signal


• I : the propagation flag : SIGNAL_NOPROPAGATE or SIGNAL_PROPAGATE.


• Return * : the same Widgets object or nil if an error occurs.

See also

Example