ctypes is unable to load dll file using ctypes.open()

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this code works properly on my machine but when i copy it to another machine with all its prerequisite it stops at line 5: var lib = ctypes.open("C:\\myapp\\dl1.dll");

function initport() 
{
Components.utils.import("resource://gre/modules/ctypes.jsm");
 
var lib = ctypes.open("C:\\myapp\\dl1.dll");

var ans= lib.declare("initPort" , ctypes.stdcall_abi , ctypes.int8_t );

alert("MessageBox result : "+ans());

lib.close();	

}

are there more requirements for JavaScript to load Dll?

Posted 30-Mar-11 22:49pm

01.mandar

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Sandeep Mewara 31-Mar-11 6:40am

No errors?

BTW, sure, the permission to browse that folder is provided?

01.mandar 5-Apr-11 8:04am

it runs on my machine without any error.
i have also made the folder RW form root of C:
i am running windows 7 with minimal security now when i port my code to second machine ie.windows XP which doesn't have security as compared to win 7 so i think security may not be causing any problem.
browser part :
i have reduced security in IE too.. (may be i need to change more option in IE which i don't know ) :)

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Nagy Vilmos · Answer 1 · 2011-04-04T21:41:00

Solution 1

0. Where is the dl1.dll? If it's not in C:\\myapp\\ then it won't be found.
1. Have you registered the dll on the new machine?

Posted 4-Apr-11 21:41pm

Nagy Vilmos

Comments

01.mandar 5-Apr-11 8:07am

i have placed my dll in same folder as above (even tried with sys folders)

i don't know how to register dll on new machine (is it REGSVR kinda..)