+typedef\r
+EFI_STATUS \r
+(EFIAPI * EFI_HII_GET_ALT_CFG) (\r
+ IN CONST EFI_HII_CONFIG_ROUTING_PROTOCOL *This, \r
+ IN CONST EFI_STRING Configuration, \r
+ IN CONST EFI_GUID *Guid, \r
+ IN CONST EFI_STRING Name, \r
+ IN CONST EFI_DEVICE_PATH_PROTOCOL *DevicePath, \r
+ IN CONST UINT16 *AltCfgId,\r
+ OUT EFI_STRING *AltCfgResp \r
+ )\r
+/*++\r
+\r
+ Routine Description:\r
+ This helper function is to be called by drivers to extract portions of \r
+ a larger configuration string.\r
+ \r
+ Arguments: \r
+ This - A pointer to the EFI_HII_CONFIG_ROUTING_PROTOCOL instance. \r
+ Configuration - A null-terminated Unicode string in <MultiConfigAltResp> format.\r
+ Guid - A pointer to the GUID value to search for in the \r
+ routing portion of the ConfigResp string when retrieving \r
+ the requested data. If Guid is NULL, then all GUID \r
+ values will be searched for.\r
+ Name - A pointer to the NAME value to search for in the \r
+ routing portion of the ConfigResp string when retrieving \r
+ the requested data. If Name is NULL, then all Name \r
+ values will be searched for. \r
+ DevicePath - A pointer to the PATH value to search for in the \r
+ routing portion of the ConfigResp string when retrieving \r
+ the requested data. If DevicePath is NULL, then all \r
+ DevicePath values will be searched for. \r
+ AltCfgId - A pointer to the ALTCFG value to search for in the \r
+ routing portion of the ConfigResp string when retrieving \r
+ the requested data. If this parameter is NULL, \r
+ then the current setting will be retrieved.\r
+ AltCfgResp - A pointer to a buffer which will be allocated by the \r
+ function which contains the retrieved string as requested. \r
+ This buffer is only allocated if the call was successful. \r
+ \r
+ Returns: \r
+ EFI_SUCCESS - The request succeeded. The requested data was extracted \r
+ and placed in the newly allocated AltCfgResp buffer.\r
+ EFI_OUT_OF_RESOURCES - Not enough memory to allocate AltCfgResp. \r
+ EFI_INVALID_PARAMETER - Any parameter is invalid.\r
+ EFI_NOT_FOUND - Target for the specified routing data was not found.\r
+ \r
+--*/ \r
+;\r
+\r