Wondering if anyone can provide me a clue....

I wrote a regular 32-bit c dll with vc++ 4.0 and am calling it from a vb 4.0
32-bit application.

The small function in the c-dll takes a char * from a vb string, does some
manipulations on it, and passes back another char *.

When debugging from c, the char * to about to be passed back looks fine, but
when back in vb, it's truncated or messed-up.

This happens most times when the app is run, but it has also worked correctly
as well, though I don't know why.  I've tried, from vb, both setting and not
setting a variable-length to space(128)...Still a problem.

Any ideas are appreciated.  Thanks in advance.

Rgds,
MAH.

-----BEGIN PGP PUBLIC KEY BLOCK-----
Version: 2.6.2

mQBtAzEeqw4AAAEDAMDvcqrZmWy3NUVirGeyiACKPetKzYPRut9V8Wpd+p0B8pbO
kWMlhf5PFrN68ZKBisjd6cAojztXVwNSC81M09PBD1P6OX/BjI1eCPNu5bGBt+NF
qigRJ0OWy6pEgwBlAQAFEbQhTWFyayBBLiBIYWxsZXJtYW4gPG1haEBwYW5peC5j
b20+
=i5tF
-----END PGP PUBLIC KEY BLOCK-----

VB Strings are represented internally as BSTRs. VB CD docs or the KB
provide info about how to pass args to user written DLLs
--
Hope this helps,
Gadi
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Gadi Naveh
Software designer and engineer, Netro Corporation

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So long and thanks for all the fish (Douglas Adams, Hitchhiker's Guide)

[...]

Is the string declared in VB fixed-length?  I.e., Dim sBuf as string *
128.  That may help.