lzandman
1st October 2003 19:32 UTC

ExDll example doesn't produce DLL file?
Hi,

Since I got a lot of comments about the (big) size of my NSIS plugins created in Delphi, I'm trying to convert them to Visual C++. But when I build the ExDLL C sample DLL it doesn't generate a DLL file. Only an OBJ- and a LIB-file. Does anybody know what I'm doing wrong?

I use Visual C++ .NET 2003 and I loaded the supplied .dsw file. It asks if I want to convert it to the new format. I do this and select "Build ExDLL". Then I get a 'release' directory, but it doesn't include a DLL file, only some other files.

DrO
1st October 2003 19:49 UTC

have you checked the output path in the project?

the examples in the distro normally will output the plugin into the '\plugins' folder so you will see the obj and lib files in the 'release' folder or whatever it has been called where the source is but the dll will be created elsewhere.

best to check the plugins folder for the file times is what i can suggest

hope that helps

-daz

lzandman
1st October 2003 20:59 UTC

Originally posted by DrO
have you checked the output path in the project?

best to check the plugins folder for the file times is what i can suggest

lzandman
1st October 2003 23:47 UTC

I've got a new problem. When I add my own code to the exdll example I get the following errors:

exdll.obj : error LNK2019: unresolved external symbol _rand referenced in function _GetRandom
exdll.obj : error LNK2019: unresolved external symbol _srand referenced in function _GetRandom
exdll.obj : error LNK2019: unresolved external symbol _time referenced in function _GetRandom
exdll.obj : error LNK2001: unresolved external symbol __fltused
exdll.obj : error LNK2019: unresolved external symbol __ftol2 referenced in function _GetRandom
../../Plugins/exdll.dll : fatal error LNK1120: 5 unresolved externals

#include <windows.h>
#include <stdlib.h>
#include "exdll.h"
#include "time.h"

HINSTANCE g_hInstance;

HWND g_hwndParent;

int myatoi(char *s);

void __declspec(dllexport) GetRandom(HWND hwndParent, int string_size, 
                                     char *variables, stack_t **stacktop)
{
  g_hwndParent=hwndParent;

  EXDLL_INIT();

  // do your stuff here
  {
        int range;
        int val;
        char buf[1024];

        // Pop range from stack
        popstring(buf);
        range = myatoi(buf);
        
        // Seed the random number generator with the current time
        srand( (unsigned)time( NULL ) );

        // The following code was taken from this website:
        // http://www.delorie.com/djgpp/v2faq/faq22_23.html
        // int random_number =
        //        low + (double)rand () * (high - low + 1) / RAND_MAX;

        val = ((double) rand() * range / RAND_MAX);

        wsprintf(buf,"%d",val);

        pushstring(buf);
  }
}



BOOL WINAPI _DllMainCRTStartup(HANDLE hInst, ULONG ul_reason_for_call, LPVOID lpReserved)
{
  g_hInstance=hInst;
        return TRUE;
}

// This function was copied from AdvSplash plugin
int myatoi(char *s)
{
  unsigned int v=0;
  if (*s == '0' && (s[1] == 'x' || s[1] == 'X'))
  {
    s+=2;
    for (;;)
    {
      int c=*s++;
      if (c >= '0' && c <= '9') c-='0';
      else if (c >= 'a' && c <= 'f') c-='a'-10;
      else if (c >= 'A' && c <= 'F') c-='A'-10;
      else break;
      v<<=4;
      v+=c;
    }
  }
  else if (*s == '0' && s[1] <= '7' && s[1] >= '0')
  {
    s++;
    for (;;)
    {
      int c=*s++;
      if (c >= '0' && c <= '7') c-='0';
      else break;
      v<<=3;
      v+=c;
    }
  }
  else
  {
    int sign=0;
    if (*s == '-') { s++; sign++; }
    for (;;)
    {
      int c=*s++ - '0';
      if (c < 0 || c > 9) break;
      v*=10;
      v+=c;
    }
    if (sign) return -(int) v;
  }
  return (int)v;
}

kichik
2nd October 2003 12:26 UTC

It's because the ExDLL project doesn't include default libraries. Add LIBC.LIB to the list of library modules.

Please attach large files next time.

lzandman
2nd October 2003 13:30 UTC

Originally posted by kichik
It's because the ExDLL project doesn't include default libraries. Add LIBC.LIB to the list of library modules.

Please attach large files next time.

kichik
2nd October 2003 13:36 UTC

Rename it to .txt then.

lzandman
2nd October 2003 15:33 UTC

Originally posted by kichik
Rename it to .txt then.