SHTDN_REASON_VALID_BIT_MASK                 = 0xc0ffffff

	SHUTDOWN_NORETRY = 0x1
)

// Flags used for GetModuleHandleEx
const (
	GET_MODULE_HANDLE_EX_FLAG_PIN                = 1
	GET_MODULE_HANDLE_EX_FLAG_UNCHANGED_REFCOUNT = 2
	GET_MODULE_HANDLE_EX_FLAG_FROM_ADDRESS       = 4
)

// MUI function flag values

//sys	GetProcAddress(module Handle, procname string) (proc uintptr, err error)
//sys	GetModuleFileName(module Handle, filename *uint16, size uint32) (n uint32, err error) = kernel32.GetModuleFileNameW
//sys	GetModuleHandleEx(flags uint32, moduleName *uint16, module *Handle) (err error) = kernel32.GetModuleHandleExW
//sys	SetDefaultDllDirectories(directoryFlags uint32) (err error)

	n = uint32(r0)
	if n == 0 {
		err = errnoErr(e1)
	}
	return
}

func GetModuleHandleEx(flags uint32, moduleName *uint16, module *Handle) (err error) {
	r1, _, e1 := syscall.Syscall(procGetModuleHandleExW.Addr(), 3, uintptr(flags), uintptr(unsafe.Pointer(moduleName)), uintptr(unsafe.Pointer(module)))
	if r1 == 0 {