you wrote, that you found reference for dword. Can you help me to find reference for IOCTL_SERVICE_REFRESH I hadn't found it in header files :(there is just definition with some macro, which I don't understand).
Finally, I need to call IOCTL_SERVICE_REFRESH on GPD0: using function DeviceIoControl from core.dll, which I "dllimported". So I need declare and define IOCTL_SERVICE_REFRESH in case to use it in DeviceIoControl as a parameter.
I am using C#
Sorry my bad english...
Thank you very much for your reply!