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Correct VB5 declaration of C dll
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From
05/03/1998 10:45:38
 
 
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General information
Forum:
Visual Basic
Category:
Windows API functions
Title:
Correct VB5 declaration of C dll
Miscellaneous
Thread ID:
00082700
Message ID:
00082700
Views:
71
Hi!

I am designing routines in C to speed up a VB application. One of them involves an array of strings. I would like to know what is the correct declaration in VB for my C routine. All my routines are stored in a DLL.

-C declaration:

int _stdcall ChArray (LPTSTR *s1, int d);

-VB declaration:

Declare Function ChArray Lib "c:\project\dll\debug\testvb\dll.dll" _
(????? Str1 As ??????, ByVal dimen As Long) As Long

Explanation:

In the C routine, s1 is an array of strings.

When I work with regular strings (LPTSTR), I have no problem modifying and returning the string. But when I tried to modify an array of strings (LPTSTR *), well, there is something I am missing. So maybe just my declaration isn't correct in VB, or maybe the way I'm declaring it on the C side isn't correct either.

P.J
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