Help!!!!!

[markmyb]

I need to compile a dll for a vb app. what project type and complie options must I use!!!

Using Visual C++

the following header has being included:

#define CEEPROGS

extern "C" // need for 'C' & VB progs
{

#ifdef CEEPROGS
__declspec(dllexport) int CVDDLL_Main(char *Src,int Srclen,char *DestName,char *ErrorLog);
#define OURCALLING __declspec(dllexport)
#else
int APIENTRY CVDDLL_Main(char *Src,int Srclen,char *DestName,char *ErrorLog);
#define OURCALLING APIENTRY
#endif
}


the vb programmer has defined it as:
Public Declare Function CVDDLL_Main Lib "cvddllmain.dll" (ByVal sFile As String, _
ByVal iLen As Integer, _
ByVal sFileDesc As String, _
ByVal sErrorLog As String) As Integer


but it keeps give bad dll calling convention error.

[CornedBee]

you must add a .def file:

LIBRARY
   myDLL
EXPORTS
  CVDDLL_Main

Then I think you don't even need the extern "C"

[CornedBee]

And you need APIENTRY on both declarations.

[markmyb]

Thanx CornedBee,
I managed to sort out the problem

added the following change to both apps.

Alias "_CVDDLL_Main@16" to the vb declaration and change the c++ declaration to include __stdcall



this way I don't have to export another file as well...

latter