Re: [Mingw-users] Building DLLs with MingW

[Jeremy B. <je...@de...>]

There is a much better way to get the full path of your exe.

GetModuleFileName(GetModuleHandle(0), buffer, sizeof(buffer));

works for dlls too, but you do need a little more information:

GetModuleFileName(hinstDll /* from DllMain or GetModuleHandle("DLLNAME") */
, buffer, sizeof(buffer));

Or if you want to get crazy, you can use some code like this to find the
filename of the dll that the current function is in:

        void *codeaddress = myfunction; // set this to a pointer to a
function or a class or a static variable
        char buf[1000];
        MEMORY_BASIC_INFORMATION memInfo;
        VirtualQueryEx(GetCurrentProcess(), codeaddress , &memInfo,
sizeof(memInfo));
        if (GetModuleFileName(memInfo.AllocationBase, buf, sizeof(buf))) {
            printf("The address %x is in the file %s\n", codeaddress, buf);
        }

----- Original Message ----- 
From: "Greg Chicares" <chi...@mi...>
To: <min...@li...>
Sent: Thursday, April 01, 2004 12:57 PM
Subject: Re: [Mingw-users] Building DLLs with MingW


> Stefan Viljoen wrote:
> >
> > URL's? Howtos? Idiot's guides?
>
> Search the web for 'dllhelpers'. Use '-shared', not 'dllwrap'.
> My personal preference is to specify export and import declspecs
> explicitly (works on other compilers too), though the auto-import
> option avoids that and may work for you.
>
> > I have code that I have compiled into an .EXE that among other things
depends
> > on knowing it startup directory...
>
> Probably you're already doing something like this, then:
>
>   char x[MAX_PATH];
>   char** p = 0;
>   GetFullPathName(argv[0], MAX_PATH, x, p);
>
> Now the startup directory is in 'x'.
>
> > how will I implement that code in a DLL
> > that might reside in the /Windows directory, for example...
>
> You don't have to put dlls in a system directory if you don't want.
>
> > but that I still
> > want to access files in the associated .EXE's startup directory?
>
> You could define a variable for the path inside the dll, and have
> the exe set that variable to the value you want. There may be a
> simpler way, but this way works.
>
>
> -------------------------------------------------------
> This SF.Net email is sponsored by: IBM Linux Tutorials
> Free Linux tutorial presented by Daniel Robbins, President and CEO of
> GenToo technologies. Learn everything from fundamentals to system
> administration.http://ads.osdn.com/?ad_id=1470&alloc_id=3638&op=click
> _______________________________________________
> MinGW-users mailing list
> Min...@li...
>
> You may change your MinGW Account Options or unsubscribe at:
> https://lists.sourceforge.net/lists/listinfo/mingw-users
>