+/**\r
+ Find menu which will show next time.\r
+\r
+ @param Selection On input, Selection tell setup browser the information\r
+ about the Selection, form and formset to be displayed.\r
+ On output, Selection return the screen item that is selected\r
+ by user.\r
+ @param Repaint Whether need to repaint the menu.\r
+ @param NewLine Whether need to show at new line.\r
+ \r
+ @retval TRUE Need return.\r
+ @retval FALSE No need to return.\r
+**/\r
+BOOLEAN\r
+FindNextMenu (\r
+ IN OUT UI_MENU_SELECTION *Selection,\r
+ IN BOOLEAN *Repaint, \r
+ IN BOOLEAN *NewLine \r
+ );\r
+\r
+/**\r
+ check whether the formset need to update the NV.\r
+\r
+ @param FormSet FormSet data structure.\r
+ @param SetValue Whether set new value or clear old value.\r
+\r
+**/\r
+VOID\r
+UpdateNvInfoInForm (\r
+ IN FORM_BROWSER_FORMSET *FormSet,\r
+ IN BOOLEAN SetValue\r
+ );\r
+\r
+/**\r
+ check whether the formset need to update the NV.\r
+\r
+ @param FormSet FormSet data structure.\r
+\r
+ @retval TRUE Need to update the NV.\r
+ @retval FALSE No need to update the NV.\r
+**/\r
+BOOLEAN \r
+IsNvUpdateRequired (\r
+ IN FORM_BROWSER_FORMSET *FormSet\r
+ );\r
+\r
+/**\r
+ Call the call back function for the question and process the return action.\r
+\r
+ @param Selection On input, Selection tell setup browser the information\r
+ about the Selection, form and formset to be displayed.\r
+ On output, Selection return the screen item that is selected\r
+ by user.\r
+ @param Statement The Question which need to call.\r
+ @param Action The action request.\r
+ @param SkipSaveOrDiscard Whether skip save or discard action.\r
+\r
+ @retval EFI_SUCCESS The call back function excutes successfully.\r
+ @return Other value if the call back function failed to excute. \r
+**/\r
+EFI_STATUS \r
+ProcessCallBackFunction (\r
+ IN OUT UI_MENU_SELECTION *Selection,\r
+ IN FORM_BROWSER_STATEMENT *Question,\r
+ IN EFI_BROWSER_ACTION Action,\r
+ IN BOOLEAN SkipSaveOrDiscard\r
+ );\r
+ \r
+/**\r
+ Call the retrieve type call back function for one question to get the initialize data.\r
+ \r
+ This function only used when in the initialize stage, because in this stage, the \r
+ Selection->Form is not ready. For other case, use the ProcessCallBackFunction instead.\r
+\r
+ @param ConfigAccess The config access protocol produced by the hii driver.\r
+ @param Statement The Question which need to call.\r
+\r
+ @retval EFI_SUCCESS The call back function excutes successfully.\r
+ @return Other value if the call back function failed to excute. \r
+**/\r
+EFI_STATUS \r
+ProcessRetrieveForQuestion (\r
+ IN EFI_HII_CONFIG_ACCESS_PROTOCOL *ConfigAccess,\r
+ IN FORM_BROWSER_STATEMENT *Statement\r
+ );\r
+\r
+/**\r
+ Find the matched FormSet context in the backup maintain list based on HiiHandle.\r
+ \r
+ @param Handle The Hii Handle.\r
+ \r
+ @return the found FormSet context. If no found, NULL will return.\r
+\r
+**/\r
+FORM_BROWSER_FORMSET * \r
+GetFormSetFromHiiHandle (\r
+ EFI_HII_HANDLE Handle\r
+ );\r
+\r
+/**\r
+ Check whether the input HII handle is the FormSet that is being used.\r
+ \r
+ @param Handle The Hii Handle.\r
+ \r
+ @retval TRUE HII handle is being used.\r
+ @retval FALSE HII handle is not being used.\r
+\r
+**/\r
+BOOLEAN\r
+IsHiiHandleInBrowserContext (\r
+ EFI_HII_HANDLE Handle\r
+ );\r
+\r
+/**\r
+ Configure what scope the hot key will impact.\r
+ All hot keys have the same scope. The mixed hot keys with the different level are not supported.\r
+ If no scope is set, the default scope will be FormSet level.\r
+ After all registered hot keys are removed, previous Scope can reset to another level.\r
+ \r
+ @param[in] Scope Scope level to be set. \r
+ \r
+ @retval EFI_SUCCESS Scope is set correctly.\r
+ @retval EFI_INVALID_PARAMETER Scope is not the valid value specified in BROWSER_SETTING_SCOPE. \r
+ @retval EFI_UNSPPORTED Scope level is different from current one that the registered hot keys have.\r
+\r
+**/\r
+EFI_STATUS\r
+EFIAPI\r
+SetScope (\r
+ IN BROWSER_SETTING_SCOPE Scope\r
+ );\r
+\r
+/**\r
+ Register the hot key with its browser action, or unregistered the hot key.\r
+ Only support hot key that is not printable character (control key, function key, etc.).\r
+ If the action value is zero, the hot key will be unregistered if it has been registered.\r
+ If the same hot key has been registered, the new action and help string will override the previous ones.\r
+ \r
+ @param[in] KeyData A pointer to a buffer that describes the keystroke\r
+ information for the hot key. Its type is EFI_INPUT_KEY to \r
+ be supported by all ConsoleIn devices.\r
+ @param[in] Action Action value that describes what action will be trigged when the hot key is pressed. \r
+ @param[in] DefaultId Specifies the type of defaults to retrieve, which is only for DEFAULT action.\r
+ @param[in] HelpString Help string that describes the hot key information.\r
+ Its value may be NULL for the unregistered hot key.\r
+ \r
+ @retval EFI_SUCCESS Hot key is registered or unregistered.\r
+ @retval EFI_INVALID_PARAMETER KeyData is NULL.\r
+ @retval EFI_NOT_FOUND KeyData is not found to be unregistered.\r
+ @retval EFI_UNSUPPORTED Key represents a printable character. It is conflicted with Browser.\r
+**/\r
+EFI_STATUS\r
+EFIAPI\r
+RegisterHotKey (\r
+ IN EFI_INPUT_KEY *KeyData,\r
+ IN UINT32 Action,\r
+ IN UINT16 DefaultId,\r
+ IN EFI_STRING HelpString OPTIONAL\r
+ );\r
+\r
+/**\r
+ Register Exit handler function. \r
+ When more than one handler function is registered, the latter one will override the previous one. \r
+ When NULL handler is specified, the previous Exit handler will be unregistered. \r
+ \r
+ @param[in] Handler Pointer to handler function. \r
+\r
+**/\r
+VOID\r
+EFIAPI\r
+RegiserExitHandler (\r
+ IN EXIT_HANDLER Handler\r
+ );\r
+\r
+/**\r
+ Create reminder to let user to choose save or discard the changed browser data.\r
+ Caller can use it to actively check the changed browser data.\r
+\r
+ @retval BROWSER_NO_CHANGES No browser data is changed.\r
+ @retval BROWSER_SAVE_CHANGES The changed browser data is saved.\r
+ @retval BROWSER_DISCARD_CHANGES The changed browser data is discard.\r
+\r
+**/\r
+UINT32\r
+EFIAPI\r
+SaveReminder (\r
+ VOID\r
+ );\r
+\r
+/**\r
+ Find the registered HotKey based on KeyData.\r
+ \r
+ @param[in] KeyData A pointer to a buffer that describes the keystroke\r
+ information for the hot key.\r
+\r
+ @return The registered HotKey context. If no found, NULL will return.\r
+**/\r
+BROWSER_HOT_KEY *\r
+GetHotKeyFromRegisterList (\r
+ IN EFI_INPUT_KEY *KeyData\r
+ );\r
+\r