taskCallbackNames {base} | R Documentation |
getTaskCallbackNames()
A character vector giving the name for each of the
registered callbacks which are invoked when
a top-level task is completed successfully.
Each name is the one used when registering
the callbacks and returned as the in the
call to addTaskCallback
.
This is an experimental feature and the interface may be changed in the future.
addTaskCallback
removeTaskCallback
taskCallbackManager
http://developer.r-project.org/TaskHandlers.pdf
n <- addTaskCallback(function(expr, value, ok, visible) { cat("In handler\n") return(TRUE) }, name = "simpleHandler") getTaskCallbackNames() # now remove it by name removeTaskCallback("simpleHandler") h <- taskCallbackManager() h$add(function(expr, value, ok, visible) { cat("In handler\n") return(TRUE) }, name = "simpleHandler") getTaskCallbackNames() removeTaskCallback("R-taskCallbackManager")