易語言U盤彈出與插入源碼,U盤彈出與插入,設置U盤狀態,StateChange,IsClassUsb,SetupDiOpenClassRegKey,RegQueryValueEx,RegCloseKey,lstrcmpi,SetupDiGetClassDevs,SetupDiEnumDeviceInfo,LoadCursor,SetCursor,SetupDiSetClassInstallParams,SetupDiDestroyD