The IDLitTool::DisableUpdates procedure method disables all drawing updates to the current window and UI updates (menu sensitivity) being passed to the user interface. After this method is called, updates are re-enabled by calling the EnableUpdates method.
Obj->[IDLitTool::]DisableUpdates ([, PREVIOUSLY_DISABLED=variable])
Set this keyword to a named variable that upon return will be 1 if the tool had previously been disabled, or 0 otherwise.
PREVIOUSLY_DISABLED: Introduced 6.1