The DRIVER_UPGRADE_INFO_1 structure is used as an input to a printer interface DLL's DrvUpgradePrinter function.
typedef struct _DRIVER_UPGRADE_INFO_1 {
LPTSTR pPrinterName;
LPTSTR pOldDriverDirectory;
} DRIVER_UPGRADE_INFO_1, *PDRIVER_UPGRADE_INFO_1;
Declared in winddiui.h. Include winddiui.h.