OpenEuphoria

1. dll (probably newbie) issue.

• Posted by Travis_Beaty Jan 07, 2016
• 1708 views

Hello all. I've been away from Euphoria for a very long time, and I'm giving it another go. Unfortunately, I've forgotten quite a bit, and Euphoria has also (it seems) changed quite a bit.

Here is my first hang up. I'm trying to load a dll, and failing.

-- qeuti_dll.e 
 
include std/dll.e 
 
atom dll_handle 
 
global function define_qeuti_proc(object routine_name, sequence arg_types) 
	return define_c_proc(dll_handle, routine_name, arg_types) 
end function 
 
procedure openQeutiDLL() 
	-- TODO: More extensive search, use of platform to handle Linux, etc. 
	dll_handle = dll:open_dll({"qeuti.dll", "./qeuti.dll"}) 
	if dll_handle = 0 then 
		puts(1, "Qeuti: Fatal:  Could not open qeuti.dll\n") 
		abort(1) 
	end if 
end procedure 
 
procedure initialize() 
	openQeutiDLL() 
end procedure 
 
initialize() 

dll_handle is reporting zero, even though I've ensured that the qeuti.dll is in the same directory as the include file, and that I'm running my test file in this directory as well. Also, I've gone out of my way to make sure all dlls qeuti.dll is dependent on is also in the directory. The only hang-up I can think of is that this is a 32-bit dll running in a 64-bit system, but unfortunately the Qt Creator doesn't offer a 64-bit Mingw compiler. Ideas?

PS C:\Users\Travis\Workshop\qeuti\eu> eui --version 
Euphoria Interpreter v4.1.0 development 
   64-bit Windows, Using System Memory 
   Revision Date: 2015-02-02 14:18:53, Id: 6300:57179171dbed 
 
Windows 10 64-bit 

3. Re: dll (probably newbie) issue.

• Posted by Travis_Beaty Jan 07, 2016
• 1701 views

I tried using the 32-bit version of Euphoria ... still, no good. In the past I've dealt with a lot of "dll hell" when it comes to building Windows apps using the Mingw version of Qt, and I suspect that this might be the cause of my issues. I'm downloading the 64-bit Qt Creator version that uses the VS build tools, and will try again with that. Not the best solution, since I really didn't want to have to juggle two different C compilers between platforms, but we'll see. Will reply again once I get that set up and tested.

5. Re: dll (probably newbie) issue.

• Posted by Travis_Beaty Jan 07, 2016
• 1707 views

Strongly suspecting missing dlls after a little chat with Dependency Walker. /me fills page with raging obscenities concerning dlls.

7. Re: dll (probably newbie) issue.

• Posted by Travis_Beaty Jan 07, 2016
• 1710 views

I have done this in the past, usually using extern "C". I switched back to trying with the 32-bit Euphoria and the 32-bit dll built by Qt Creator using Mingw. It looks like that even though the dll is 32-bit, it is calling 64-bit libraries, which might be the issue. So I can either have a 64-bit Euphoria that can't open 32-bit dlls, or a 32-bit Euphoria that's trying to open a 32-bit dll that itself calls 64-bit libraries.

Meh. This was just sort of a napkin project anyway, so I may just give this up and try something a bit less taxing.

Or ... try to get Linux work on this newer machine with its wacky UEFI.