Sets the closure to be monitored by this accelerator label. The closure must be connected to an accelerator group; see AccelGroup.connect. Passing NULL for accel_closure will dissociate accel_label from its current closure, if any.
the closure to monitor for accelerator changes, or NULL
Sets the closure to be monitored by this accelerator label. The closure must be connected to an accelerator group; see AccelGroup.connect. Passing NULL for accel_closure will dissociate accel_label from its current closure, if any.