> The file version is stored in the first 6 bytes of the file.
>
> AC1015 for R2000 files
> AC1018 for R2004 files
> AC1021 for R2007 files
> ...
>
> Or are you looking for a function in libredwg that returns this value?
>
> 2010/12/13 Giampaolo Bellini <
address@hidden>:
>> Hi all
>>
>> opening and parsing some dwg files I got a segmentation fault,
>> probably due to unsupported version of dwg: is there a way to retrieve
>> the dwg revision of a file before trying to parse it's contents ?
>>
>> Giampaolo
>>
>>
>
>