getDword

        fn getDword(key: Key, entry: ValueEntry) error{ ValueNameNotFound, NotADword, DwordNotFound }!windows.DWORD {
            const num_data_bytes = @sizeOf(windows.DWORD);
            const buf_len = @sizeOf(windows.KEY.VALUE.PARTIAL_INFORMATION) + num_data_bytes;
            var info_buf: [buf_len]u8 align(@alignOf(windows.KEY.VALUE.PARTIAL_INFORMATION)) = undefined;
            var result_len: windows.ULONG = undefined;
            const rc = windows.ntdll.NtQueryValueKey(
                key.handle,
                switch (entry) {
                    .name => |name| @constCast(&windows.UNICODE_STRING.init(name)),
                    .default => @constCast(&windows.UNICODE_STRING.empty),
                },
                .Partial,
                &info_buf,
                buf_len,
                &result_len,
            );
            switch (rc) {
                .SUCCESS => {},
                .OBJECT_NAME_NOT_FOUND => return error.ValueNameNotFound,
                else => return error.DwordNotFound,
            }

            const info: *const windows.KEY.VALUE.PARTIAL_INFORMATION = @ptrCast(&info_buf);

            switch (info.Type) {
                .DWORD => {},
                else => return error.NotADword,
            }

            return std.mem.bytesToValue(windows.DWORD, info.data());
        }