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Project Line Counter Add-In v2.10 for VS.NET and VC6

, 29 Jun 2003
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linecount_dll.zip
linecount_src.zip
Help
arrowrt.gif
Index.hhk
LineCount.chm
LineCount.hhp
mailto.gif
metl011.gif
PLC.gif
small_exclamation.gif
TOC.hhc
weblink.gif
res
idr_main.ico
project.ico
TBarLrge.bmp
TBarMedm.bmp
title.ico
ExtrnSrc
Release
LineCount.dll
WWhizInterface.mod
LineCount.chm
plc110src.zip
plc111.zip
plc111src.zip
Source
LineCount.dsw
LineCount_VC5.dsw
LineCount.dsp
LineCount_VC5.dsp
LineCount.odl
LineCount.def
Help
.cvsignore
Index.hhk
LineCount.hhp
PLC.gif
TOC.hhc
arrowrt.gif
mailto.gif
metl011.gif
small_exclamation.gif
weblink.gif
res
TBarLrge.bmp
TBarMedm.bmp
idr_main.ico
project.ico
title.ico
ExtrnSrc
Debug
WWhizInterface2D.mod
plc150.zip
Reports
SampleAnalysis.xls
Simple-BW.xsl
Simple-Color.xsl
plc150src.zip
SampleAnalysis.xls
Simple-BW.xsl
Simple-Color.xsl
LineCount.dsw
LineCount.dsp
LineCount.odl
LineCount.def
LineCount.clw
.cvsignore
TOC.hhc
linecount.hhp
arrowrt.gif
Index.hhk
PLC.gif
mailto.gif
small_exclamation.gif
weblink.gif
info_dot_small.gif
TBarLrge.bmp
idr_main.ico
project.ico
HdrDownA.bmp
HdrUpA.bmp
title.ico
info.ico
TBarMedm.bmp
WWhizInterface2D.mod
plc200.zip
plc200src.zip
.cvsignore
LineCount.def
LineCount.dsp
LineCount.dsw
LineCount.odl
ResizableLib
.cvsignore
ResizableLib.dsp
ResizableLib.dsw
.cvsignore
Index.hhk
LineCount.hhp
PLC.gif
TOC.hhc
arrowrt.gif
info_dot_small.gif
mailto.gif
small_exclamation.gif
weblink.gif
ObjModelVC6
ObjModelVC7
MSADDNDR.tlh
MSO.tlh
dte.tlh
HdrDownA.bmp
HdrUpA.bmp
LineCountVC6.rgs
LineCountVC7.rgs
TBarLrge.bmp
TBarMedm.bmp
idr_main.ico
info.ico
lcgo.bmp
project.ico
title.ico
WWhizInterface2D.mod
plc210.zip
plc210src.zip
.cvsignore
LineCount.def
LineCount.dsp
LineCount.dsw
LineCount.odl
.cvsignore
ResizableLib.dsp
ResizableLib.dsw
.cvsignore
Index.hhk
LineCount.hhp
PLC.gif
TOC.hhc
arrowrt.gif
info_dot_small.gif
mailto.gif
small_exclamation.gif
weblink.gif
MSADDNDR.tlh
MSO.tlh
dte.tlh
HdrDownA.bmp
HdrUpA.bmp
LineCountVC6.rgs
LineCountVC7.rgs
TBarLrge.bmp
TBarMedm.bmp
gallery.xsl
idr_main.ico
info.ico
lcgo.bmp
project.ico
title.ico
WWhizInterface2D.mod
/***************************************************************************/
/* NOTE:                                                                   */
/* This document is copyright (c) by Oz Solomonovich.  All non-commercial  */
/* use is allowed, as long as this document is not altered in any way, and */
/* due credit is given.                                                    */
/***************************************************************************/

// AddInComm Loader, (AIC 1.3.0 - March 2000)
// ==========================================


// Instructions for using the loader in your project
// 1) make sure to link version.lib
// 2) the loader doesn't #include your precompiled headers, so set the
//    the "Not using precompiled header" option for it



// this file includes itself; the following is a helper directive
#ifndef __AICLOADER_INCLUDE_LIST
#define __AICLOADER_INCLUDE_LIST

#define STRICT 
#define LEAN_AND_MEAN
#include <windows.h>
#include <assert.h>
#include <stdio.h>

#include "AICLoader.h"
#include "AddInComm.h"

// "#include __FILE__" doesn't work with Win9x, so define our own const:
#define THIS_FILE "AICLoader.cpp"   

// library names: release/debug
const char *s_pszDLLNameR = "AIC.mod";
const char *s_pszDLLNameD = "AICD.mod";

// old library names: release/debug
const char *s_pszDLLNameOldR = "AIC.dll";
const char *s_pszDLLNameOldD = "AICD.dll";

const char **s_ppszDLLNameToUse = 
#ifdef _DEBUG
    &s_pszDLLNameD;
#else
    &s_pszDLLNameR;
#endif

#undef TRACE
#ifdef _DEBUG
#define TRACE OutputDebugString
#else
#define TRACE(x) ((void)0)
#endif

static HINSTANCE s_hInst = NULL;   // library instance handle

// define the function pointer variables
#undef FN_DEF
#undef FN_DEF_NONCRIT
#define FN_DEF(name,a,b)          static LPVOID s_pfn##name = NULL;
#define FN_DEF_NONCRIT(name,a,b)  FN_DEF(name,a,b)
#include THIS_FILE


// this auto destructing object will ensure that the library is freed when
// the DevStudio exits
static struct auto_destruct 
{ 
    ~auto_destruct() { aiclUnloadAICLibrary(); }
} autodestruct;


static HINSTANCE LoadByFileName(HINSTANCE hMyInst, const char *pszFileName)
{
    HINSTANCE hInst;
    char      path[1024], *p;
    
    hInst = ::LoadLibraryA(pszFileName);

    if (!hInst)
    {
        // try the module directory
        GetModuleFileName(hMyInst, path, sizeof(path));
        p = strrchr(path, '\\');
        assert(p);
        strcpy(++p, pszFileName);
        hInst = ::LoadLibrary(path);
    }

    if (!hInst)
    {
        // try add-in directory
        aiclGetDSAddInDir((LPSTR)path, sizeof(path));

        if (path[0])
        {
            strcat(path, pszFileName);
            hInst = ::LoadLibrary(path);
        }
    }

    return hInst;
}


bool aiclLoadAICLibrary(HINSTANCE hInst)
{
    s_hInst = LoadByFileName(hInst, *s_ppszDLLNameToUse);

    if (!s_hInst)
    {
        // attempt to load using old library name
        s_hInst = LoadByFileName(hInst, 
            (s_ppszDLLNameToUse == &s_pszDLLNameR)?
                s_pszDLLNameOldR : s_pszDLLNameOldD);
    }
    
    if (s_hInst)
    {
#undef FN_DEF
#undef FN_DEF_NONCRIT
#define FN_DEF_NONCRIT(name,a,b) \
    s_pfn##name = (LPVOID)::GetProcAddress(s_hInst, #name);
#define FN_DEF(name,a,b)  \
    FN_DEF_NONCRIT(name,a,b); \
    if (!s_pfn##name) \
    { \
        TRACE("*** AICLoader: Couldn't load function " #name \
              " - aborting\n"); \
        goto bad; \
    }
#include THIS_FILE
    }

out:
    return (s_hInst != NULL);

bad:
    aiclUnloadAICLibrary();
    goto out;
}

void aiclUnloadAICLibrary()
{
    if (s_hInst)
    {
        ::FreeLibrary(s_hInst);
        s_hInst = NULL;
    }
}


void aiclUseDebugLibrary(BOOL bUse)
{
    s_ppszDLLNameToUse = bUse? &s_pszDLLNameD : &s_pszDLLNameR;
}

bool aiclIsAICLoaded()
{
    return (s_hInst != NULL);
}


// == Misc Functions == //

void aiclGetFileVersion(LPCTSTR pszPath, LPSTR out_pszVer)
{
    DWORD   DataLen, Zero;
    PVOID   pData, pValue;
    UINT    ValueLen;
    TCHAR   buf[50];
    DWORD   dwTranslation;
   
    DataLen = GetFileVersionInfoSize((char *)pszPath, &Zero);
    pData = new char[DataLen];
    GetFileVersionInfo((char *)pszPath, NULL, DataLen, pData);

    VerQueryValue (pData, "\\VarFileInfo\\Translation", &pValue, &ValueLen);
    if (ValueLen >= 4)
    {
        dwTranslation = *(DWORD *)pValue;
        sprintf(buf, "\\StringFileInfo\\%04x%04x\\ProductVersion",
            LOWORD(dwTranslation), HIWORD(dwTranslation));

        VerQueryValue(pData, buf, &pValue, &ValueLen);

        memcpy(out_pszVer, pValue, ValueLen);
    }
    else
    {
        out_pszVer[0] = '\0';
    }

    delete [] pData;
}


void aiclGetModuleVersion(LPCTSTR pszMod, LPSTR out_pszVer)
{
    char path[1024];
    HMODULE hModule;

    hModule = GetModuleHandle(pszMod);
    GetModuleFileName(hModule, (LPSTR)path, sizeof(path));
    aiclGetFileVersion(path, out_pszVer);
}


void aiclGetDSCurrentUserRegKey(LPSTR out_pszKeyName)
{
    char buf[1024];

    aiclGetModuleVersion("MSDEV.EXE", (LPSTR)buf);
    strcpy(out_pszKeyName, "Software\\Microsoft\\DevStudio\\");
    strcpy((char *)&buf[1], ".0");
    strcat(out_pszKeyName, buf);
}

void aiclGetDSAddInDir(LPSTR out_pszPath, DWORD cb)
{
    HKEY hKey;
    DWORD type;
    char *p = NULL;

    aiclGetDSCurrentUserRegKey(out_pszPath);
    strcat(out_pszPath, "\\Directories");

    if (::RegOpenKeyEx(HKEY_CURRENT_USER, out_pszPath, 0, KEY_READ, &hKey) ==
        ERROR_SUCCESS)
    {
        if (::RegQueryValueEx(hKey, "Install Dirs", 0, &type, 
            (LPBYTE)out_pszPath, &cb) == ERROR_SUCCESS)
        {
            p = strrchr(out_pszPath, '\\');
            if (p)
            {
                strcpy(p + 1, "AddIns\\");
            }
        }
        ::RegCloseKey(hKey);
    }

    if (!p)
    {
        out_pszPath[0] = '\0';
    }
}


// == Function Stubs == //

static __declspec(naked) retnull()
{
    _asm {
        xor eax, eax
        ret
    }
}

// create the function stubs
#undef FN_DEF
#undef FN_DEF_NONCRIT
#define FN_DEF(name, ret, params) \
    ret __declspec(naked) name params \
    { \
        if (s_hInst) \
            __asm { jmp s_pfn##name } \
        else \
            __asm { jmp retnull }; \
    }
#define FN_DEF_NONCRIT(name, ret, params) \
    ret __declspec(naked) name params \
    { \
        if (s_hInst && s_pfn##name) \
            __asm { jmp s_pfn##name } \
        else \
            __asm { jmp retnull }; \
    } 
#include THIS_FILE

#else  // __AICLOADER_INCLUDE_LIST

// function list
FN_DEF(AICRegisterAddIn, HADDIN, (LPCTSTR pName, int iVerMaj, int iVerMin, int iVerExtra, AddinCmdHandler_t *pCmdFn))
FN_DEF(AICUnregisterAddIn, bool, (HADDIN hAddIn));
FN_DEF(AICGetAddInCount, int, ());
FN_DEF(AICGetAddInList, void, (HADDIN addin_array[]));
FN_DEF(AICGetAddIn, HADDIN, (LPCTSTR pName));
FN_DEF(AICGetAddInName, LPCTSTR, (HADDIN hAddIn));
FN_DEF(AICGetAddInVersion, void, (HADDIN hAddIn, int& iVerMaj, int& iVerMin, int& iVerExtra));
FN_DEF(AICSendCommand, int, (HADDIN hAddIn, LPCTSTR pCommand));
FN_DEF(AICGetDllVersion, void, (int& iVerMaj, int& iVerMin, int& iVerExtra));

// non-critical functions: loading will not fail if these functions aren't
// found
FN_DEF_NONCRIT(AICGetAddInVersionString, LPCTSTR, (HADDIN HADDIN))
FN_DEF_NONCRIT(AICSetAddInVersionString, void, (HADDIN hAddIn, LPCTSTR pszVerStr))

#endif  // __AICLOADER_INCLUDE_LIST

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About the Author

Oz Solomon
Experion
Canada Canada
You may know Oz from his WndTabs days. Oz has long since left client side development to work on web technologies and to consult in the R&D management field.

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