Re: gtk win32 and env variables

[Goran RakiÄ <gox devbase net>]

Put this first:

#ifdef WIN32
#  include <windows.h>
#  include <winreg.h>
#endif

And latter in your code...

   #ifdef WIN32

    // Fallback value: data in working dir
    char dbpath[MAX_PATH]="data";

    HKEY hkResult;
    DWORD DataType;
    DWORD DataCount = MAX_PATH;

    // Open registry key
    if (RegOpenKeyEx( HKEY_LOCAL_MACHINE,
					"Software\\Microsoft\\Windows\\CurrentVersion\\App Paths\ 
\YouApp.exe",
                                        0 ,
                                        KEY_QUERY_VALUE,
                                        &hkResult ) == ERROR_SUCCESS )
    {

         // Write registry key value to dbpath
         RegQueryValueEx(hkResult, "dbpath", NULL, NULL, (unsigned  
char*) dbpath, &DataCount );
     }
    RegCloseKey(hkResult);

   #else

        char *dbpath = PACKAGE_DATA_DIR "/" PACKAGE "/data";

   #endif

In any case, you now have dbpath pointer you can use.
Also, you can add some kind of arguments checking (so user can bypass  
this check with argument like -data-dir some/dir).


Goran Rakic


On 05.11.2005., at 15.22, Dan McMahill wrote:

> Hi,
>
> Not sure if this is the right list or not for this question.
>
> I have a gtk+ app developed for NetBSD/Linux/Solaris.  I just  
> ported it to windows with almost no pain thanks to gtk for win32.   
> I even made an installer with NSIS.  The problem I have though is  
> that my program has 2 directories where it looks for some system  
> data files at runtime.  One of the ways it can find these  
> directories is through the use of 2 environment variables.  On a  
> unix like system, those variables are usually not needed because a  
> default path is put into the binary at compile time based on the  
> configure options.  On windows, it is easy for the user to pick a  
> different place to install so I need to set those variables.
>
> So my question is how do gtk apps ported to windows typically deal  
> with something like that?  Do I try and make the installer set some  
> windows environmnet variables?  Do I use some registry thing?  Is  
> that even supported in glib/gtk for win32?  I'm really not a  
> windows user at all, but know of a number of people interested in  
> using my program on windows.
>
> Thanks for any suggestions.
> -Dan
>
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