Hi folks,

I've only used D on Linux so far, so I'm not clear on the current shared-library story on Windows. Consider an existing C++ application that can be extended by writing plugins, which are usually written in C or C++, and compiled as DLLs. Very generally speaking, is DMD capable of producing DLLs that could be used by such an application?

If so, should I expect runtime-related issues if I create multiple plugins with DMD, and load them all into the app? (I recall some discussion about runtime problems with multiple shared libs, but perhaps that was in the context of a D program loading D shared-libs.)

Thanks,
Graham

Am 19.05.2011, 22:28 Uhr, schrieb Graham Fawcett <fawcett@uwindsor.ca>:

> Hi folks,
>
> I've only used D on Linux so far, so I'm not clear on the current
> shared-library story on Windows. Consider an existing C++ application that
> can be extended by writing plugins, which are usually written in C or C++,
> and compiled as DLLs. Very generally speaking, is DMD capable of producing
> DLLs that could be used by such an application?

Yep. Just be sure to use dll_helper as described in http://www.digitalmars.com/d/2.0/dll.html to intialize the runtime properly.


> If so, should I expect runtime-related issues if I create multiple plugins with DMD, and load them all into the app?

Never tried that.

(I've already successfully created and used Matlab .mex/.dll plugins with D)

dll helper is dead in latest release, you should use core.sys.windows.dll;

Bug report for the website has been reported already.

I've even created a dll that is used as a keylogger hook thing for Windows with only D.

Am 20.05.2011, 01:44 Uhr, schrieb Jimmy Cao <jcao219@gmail.com>:
> I've even created a dll that is used as a keylogger hook thing for Windows
> with only D.

Just remembering that I also created a COM dll with D to intercept DirectDraw calls in an old game.

On Fri, 20 May 2011 03:43:09 +0200, Trass3r wrote:

> Am 20.05.2011, 01:44 Uhr, schrieb Jimmy Cao <jcao219@gmail.com>:
>> I've even created a dll that is used as a keylogger hook thing for
>> Windows
>> with only D.
> 
> Just remembering that I also created a COM dll with D to intercept DirectDraw calls in an old game.

Thanks, Trass3r et al! I'll give it a try in D, then.

Best,
Graham

> Thanks, Trass3r et al! I'll give it a try in D, then.

Of course you can't create 64Bit dlls though ;)

On Fri, 20 May 2011 16:19:27 +0200, Trass3r wrote:

>> Thanks, Trass3r et al! I'll give it a try in D, then.
> 
> Of course you can't create 64Bit dlls though ;)

D'oh! There's always something. :)

(I don't *think* this is a problem in my case, though.)

Cheers,
Graham