HELP_CB
Action generated when the user press F1 at a control. In Motif is also activated by the Help button in some workstations keyboard.
Callback
void function(Ihandle *ih); [in C] elem:help_cb() -> (ret: number) [in Lua]
ih: identifier of the element that activated the event.
Return: IUP_CLOSE will be processed.
Affects
All elements with user interaction.