Temporarily switch off event?

Is there a way to temporarily switch off an event apart from using a nested dummy function (see code)?


;;; KG_ODCL_Tree_FolderTree_Menu_PutCurrent expands the tree and selects an item in the tree
(defun KG_ODCL_Tree_FolderTree_Menu_PutCurrent
  (
    ; code removed
  /
    ; code removed
    KG_ODCL_Tree_FolderTree_Menu_OnItemExpanded ; dummy nested function to replace global fuction
    KG_ODCL_Tree_FolderTree_Menu_OnSelChanged  ; dummy nested function to replace global fuction
  )
  (defun KG_ODCL_Tree_FolderTree_Menu_OnItemExpanded (inputList label key) nil)
  (defun KG_ODCL_Tree_FolderTree_Menu_OnSelChanged (inputList label key) nil)
  ; code removed
)

(defun c:FolderTreeTest_Main_Tree_OnSelChanged (label key / tmp)
  ;; KG_ODCL_Tree_FolderTree_Menu_OnSelChanged is sometimes replaced by a nested dummy function that returns nil!!
  (if (setq tmp (KG_ODCL_Tree_FolderTree_Menu_OnSelChanged FolderTreeMenuData key))
    (setq FolderTreeMenuData tmp)
  )
  'T ; returning an inputList will cause a crash in BC 11.4.6
)

Hi, there are two ways to do:

1: use a variable to suppress the execution of an event.
Example:
(defun c:myproj_myform_OnInitialize()
  [...]
  (setq doInit nil)
);  c:myproj_myform_OnInitialize

(defun c:myproj_myform_OnSize(intNewWidth intNewHeight)
  (if (not doInit)
    [...]
  ); if
);  c:myproj_myform_OnSize

(setq doInit T)
(dcl_form_show myproj_myform)

2. Attach an event name to the event property at runtime.
Example:
(dcl_control_setproperty myproj_myform_edtName "EditChanged" "") ;; turn off the event
(dcl_control_setproperty myproj_myform_edtName "EditChanged" "c:myproj_myform_edtName_OnEditChanged") ;; turn on the event

Regards, Fred

Your solution #2 is what I was looking for. Many thanks for your help!