Wix get value from paths

Question

Hey im creating an installer of a program that is depending on another program called \"visma\" what i want to do is simply that when the user will choose the install path.

Answer 1

Use different properties like you mentioned:

 INSTALLDIR
 
 INSTALLDIR

 
 

If you want to save them to a text file then I would use a custom action. Heres my code on how I save data to a text file.

  extern "C" UINT __stdcall GetLoggersInfo(MSIHANDLE hInstall)
 {
HRESULT hr = S_OK;
UINT er = ERROR_SUCCESS;
char szLocation[MAX_PATH];
LPWSTR szValueBuf = NULL, szInstallDir = NULL, szVismaAdmin = NULL;

hr = WcaInitialize(hInstall, "GetLoggersInfo");
ExitOnFailure(hr, "Failed to initialize");

WcaLog(LOGMSG_STANDARD, "Initialized.");

hr = WcaGetProperty(L"VISMA_ADMIN",&szVismaAdmin);
ExitOnFailure(hr, "failed to get folder");

hr = WcaGetProperty(L"SPCS_FOLDER",&szValueBuf);
ExitOnFailure(hr, "failed to get folder");

I am assuming you are installing the text file with the product so get the directory it is in:

hr = WcaGetProperty(L"INSTALLDIR",&szInstallDir);
ExitOnFailure(hr, "failed to get install location");

wcstombs(szLocation, szValueBuf, 260);
strcat(szLocation, "\\NameOfTextFile.txt");


CString lpszString = CString("Visma Admin:") + szVismaAdmin + "\r\n";

hr = AppendInfo(szLocation,lpszString);
ExitOnFailure(hr, "failed to append the NameOfTextFile.txt file with the 

LExit:
ReleaseStr(szValueBuf);
er = SUCCEEDED(hr) ? ERROR_SUCCESS : ERROR_INSTALL_FAILURE;
return WcaFinalize(er);
}

And the helper function:

HRESULT AppendInfo(__in LPCSTR lpszFile, __in LPCSTR lpszEntry )
{
HRESULT hr = S_OK;
HANDLE  hFile;
DWORD   dwWritten;
CHAR    szError[MAX_PATH*2];
CHAR    szTitle[MAX_PATH];

try
{
    if ((hFile = CreateFile(lpszFile,
        GENERIC_READ|GENERIC_WRITE,
        FILE_SHARE_READ | FILE_SHARE_WRITE,
        NULL,
        OPEN_EXISTING,
        FILE_ATTRIBUTE_NORMAL,
        NULL)) == INVALID_HANDLE_VALUE) 
    {
        // Error: Couldn't Open File. Handle error

    } 

    // No Entry Exists.
    SetFilePointer(hFile, 0, NULL, FILE_END);

    if ( !WriteFile(hFile,lpszEntry,lstrlen(lpszEntry),&dwWritten,NULL) )
    {
        CloseHandle(hFile); 
        //HandleError
    }

    CloseHandle(hFile); 
}
catch(int e)
{
    // A failure caused an exception!
    //Handle Error
}

return hr;
}

EDIT: forgot to mention to add the custom action and schedule it after InstallFinalize