winapi::um::fileapi

Function GetDiskFreeSpaceExA

Source 
pub unsafe extern "system" fn GetDiskFreeSpaceExA(
    lpDirectoryName: LPCSTR,
    lpFreeBytesAvailableToCaller: PULARGE_INTEGER,
    lpTotalNumberOfBytes: PULARGE_INTEGER,
    lpTotalNumberOfFreeBytes: PULARGE_INTEGER,
) -> BOOL