Method SetOnOptionSwitchCB

Descent3/newui_core.cpp:947–950

when a new sheet is realized, this function will be called. passed in: the menu object, the old option and the new option respectively

// when a new sheet is realized, this function will be called.
// passed in: the menu object, the old option and the new option respectively
void newuiMenu::SetOnOptionSwitchCB(void (*fn)(newuiMenu *, int16_t, int16_t, void *), void *data) {
  m_activate_sheet_cb = fn;
  m_activate_sheet_cb_data = data;
}

// equivalent of SetUICallback, called before gadgets are drawn
void newuiMenu::SetOnUIFrameCB(void (*fn)()) {