TCHAR porting issues while porting from VC6 to VC8

[Iain Clarke Warrior Programmer]

One thing I know (there are soooome others) is that VC6 defaulted to not-unicode, and VC8 defaults to unicode. TCHAR means different things depending on the defines. So your program could be thinking TCHAR = wchar_t (ie, short), while the lib you're linking against was compiled with TCHAR = char, and the two decorated functions no longer match... So, to resolve it, you need to make sure both of your chunk of codes agree on what TCHAR means. Iain.

Plz sir... CPallini CPallini abuz drugz, plz plz help urgent.

[CPallini]

It seems a UNICODE vs ANSI build conflict, i.e. VC8 project makes UNICODE builds by default, while VC6 makes ANSI ones. Possibly you have a ANSI DLL and a UNICODE client. Try to change the client setting: choose Project->Properties menu item, then select Configuration Properties->General node and finally change the Character Set switch. :)

If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler. -- Alfonso the Wise, 13th Century King of Castile.
This is going on my arrogant assumptions. You may have a superb reason why I'm completely wrong. -- Iain Clarke

[CPallini]

u 2 fast -> i 2 drugz. :-D

If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler. -- Alfonso the Wise, 13th Century King of Castile.
This is going on my arrogant assumptions. You may have a superb reason why I'm completely wrong. -- Iain Clarke

[Iain Clarke Warrior Programmer]

Well, I'm waiting for a colleague to finish a bit of work so I can carry on, so I'm pouncing for a little while. And I like to race you. Of course, while I was typing my last response, Cedric wrote a better and faster answer than me. Boo Cedric, Boo! Iain. ps, Noone's delivered your urgent drugs yet?

Plz sir... CPallini CPallini abuz drugz, plz plz help urgent.

[Cedric Moonen]

Iain Clarke wrote:

Of course, while I was typing my last response, Cedric wrote a better and faster answer than me. Boo Cedric, Boo!

Why don't we have a devil emoticon when we need it ? ;P

Cédric Moonen Software developer
Charting control [v1.4]

[CPallini]

Iain Clarke wrote:

Boo Cedric, Boo!

Definitely! That guy is too smart.

Iain Clarke wrote:

ps, Noone's delivered your urgent drugs yet?

Nope my friend...But since you are such a nice guy, ...plz plz plz urgent!!! :-D

If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler. -- Alfonso the Wise, 13th Century King of Castile.
This is going on my arrogant assumptions. You may have a superb reason why I'm completely wrong. -- Iain Clarke

[Cedric Moonen]

CPallini wrote:

Definitely! That guy is too smart.

Well, it seems that you really abuse drugs :rolleyes:

Cédric Moonen Software developer
Charting control [v1.4]

[Rajesh_Parameswaran]

Hi Pallini and Iain, Thanks for your response. But I still have that error. Both the Characterset are set to the following: Character Set: Use Unicode Character Set Treat wchar_t as Built-in Type: No(/Zc:wchar_t-)\ thanks and regards, Rajesh

[Rajkumar R]

sorry for the silly question, did you linked to the import library.

[CPallini]

Rajesh_Parameswaran wrote:

Hi Pallini and Iain,

Since it is a reply to a Cedric post, I assume you're looking for the widest audience. :laugh:

If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler. -- Alfonso the Wise, 13th Century King of Castile.
This is going on my arrogant assumptions. You may have a superb reason why I'm completely wrong. -- Iain Clarke

[Rajesh_Parameswaran]

Yes Rajkumar, I have linked to the import library. thanks in advance, regards, Rajesh

[Iain Clarke Warrior Programmer]

Coming back your original question, go back to basics. Write a function such as:

int HowBigIsATCHAR (TCHAR i_is_a_letter)
{
return sizeof (i_is_a_letter);
}

not forgetting to use dllimport / export. Try using it in a your client program. See if you get link errors, and also what size it gives you. The TCHAR thing may be a blind alley, and you are having linking trouble with constant sizeed arrays. I've never passed a big array be value before... Try passing it as TCHAR **, and see if that helps? Iain.

Plz sir... CPallini CPallini abuz drugz, plz plz help urgent.

[Rajkumar R]

you may inspect the import library for the symbol may be this( [libexplorer addin^], [libdump^]) tools helps or by simply open in binary editor. But basically these meant the symbol are not properly created in the import library, possibly check dllexport declarator is used for the class in the DLL class declaration.

[Rajkumar R]

Actually i saw that was replied to you, but when OP had seen world is behind "Plz sir slow down", he moved it there. :)

[CPallini]

Possibly. :-D

If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler. -- Alfonso the Wise, 13th Century King of Castile.
This is going on my arrogant assumptions. You may have a superb reason why I'm completely wrong. -- Iain Clarke