Re: [GD-DEVEL] Problems using the .dll

Hi Nuno,

On 4/17/07, Nuno Centeio <[email protected]> wrote:
> Hi!
>
> I'm new to GD and I want to test it.
>
> I've downloaded gd-2.0.34-win32.zip so that I can use it on my project.
> I've created a new project on Visual Studio 2005.
>
> Add the gd include/ directory to my project and also the lib/ directory.
>
> It all compiles and links fine.
>
>
> When I'm running the application I get the error:
>
> (...)
> 'Teste2.exe': Loaded 'E:\MyProjects\Teste2\debug\bgd.dll', Binary was
> not built with debug information.
> (...)
> First-chance exception at 0x7c918fea in Teste2.exe: 0xC0000005: Access
> violation writing location 0x00000010.
> Unhandled exception at 0x7c918fea in Teste2.exe: 0xC0000005: Access
> violation writing location 0x00000010.
>
>
> This exception happens somewhere in this line:
>   gdImagePng(im, pngout);

Do you use VC6 or a later version? These binaries are built using VC6,
it may cause troubles if they are used with a different runtime
(msvcrt).

> Anyone can give me a hint on this?
> Or how can I compile the .dll myself?

It is relatively simple. There is two solutions, one using the
specific windows Makefile and one using cmake (works on all
platform/compiler). I will post a tutorial about cmake and windows
later this week in our wiki.

For both solutions create a directory structure like:
c:\gd_build
 |_gd_deps << comes from gd_build_win32_deps.zip)
  |_include
  |_lib
 |_libgd << come from the source package or CVS

To build using the Makefile:
 . Fetch gd_build_win32_deps.zip from www.libgd.org/releases/extras/
 . Open a SDK (vc menu) console
 . cd c:\gd_build\libgd\windows
 . Fetch the Makefile from CVS (until 2.0.35 is out):
   http://cvs.php.net/viewvc.cgi/gd/libgd/windows/
   Or set your environment variables to add gd_build\gd_deps to your
paths (lib and include)
 . Edit the Makefile to change the path (top)
 . run nmake

Using CMake (Use CVS until 2.0.35 is out):
- Install CMake (see http://www.cmake.org)
- Open a SDK console and go to  c:\gd_build\libgd\
- Run: "cmakesetup" or "c:\path\to\cmakesetup" if you did not add it
to your path
  You can also call cmakesetup from the menu
- Select the correct source directory (c:\gd_build\libgd)
- Select the place where you like to build gd (I use c:\gd_build\libgd\bld)
- Click Configure, the first time you click it it will ask you which
kind of project
  you like to have. I use the nmake Makefile but you can select VC
project files.
- in the console, from the  c:\gd_build\libgd\bld directory, run nmake

The CMake procedure sounds complex but it is in fact a piece of cake
to use it. It works with ming, visual studio or ICC on windows and
with nearly all unix-like platforms.

For both platforms, it is important to correctly use MT or MD.

Please let us know if it solves your problem.

Cheers,
--Pierre