Shoutbox

Hi,

quote:

---

Originally posted by BlackSun1102
You must use COM Interop attribtes, to "brand" your functions as COM compactible.

---

ComVisible is one of this arributes, here you can find a list of all attributes, with decriptions and examples.

Regards Chris

I'm having trouble with a DLL call in my script too, however mine was made in VB6.

I made a test DLL with this function:

code:

---

Public Function Test() As String
Test = "hello"
End Function

---

...and my script code is:

code:

---

function OnEvent_Initialize(MessengerStart)
{
Debug.Trace(Interop.Call(MsgPlus.ScriptFilesPath + "\\Project1.dll", "Test"));
}

---

However, I keep getting this error:

code:

---

Script is now loaded and ready
Function called: OnEvent_Initialize
Interop.Call failed to locate function "Test"
Error: unknown.
       Line: 4. Code: -2147467259.
Function OnEvent_Initialize returned an error. Code: -2147352567

---

Any ideas what I am doing wrong? Thanks

EDIT: I've tried Interop.Call2 as well, but no luck!

Was your dll registered with winsvr32?

Maybe try this?

code:

---

function OnEvent_Initialize(MessengerStart)
{
Debug.Trace(Interop.Call(MsgPlus.ScriptFilesPath + "\\Project1.dll", "Test()"));
}

---

As far as I know, doesnt it need the ()?

Cloudy

cloudhunter: I have tried adding the "()" at th end, still no luck!

mathieumg: Tried registering the DLL, but it doesn't make any difference.

Anyone had any luck with DLL's yet? Still no joy with mine!

try:

Interop.Call(MsgPlus.ScriptFilesPath + "\\Project1.dll", "Test", "");

That works fine with me, else the dll is not working....


Greetz Themuzz

Thanks for the reply!

Still no luck I am affraid, not sure what is going on now.

My DLL code is as follows; anything look suspicious?

CODE:

code:

---

Public Function Test() As String
Test = "hello"
End Function

---

Had the same problem with a dll I was using, but managed to get it working by looking the the function names inside the DLL.

It seems as some C++ DLLs have mangled function names, I used dependancy walker to find the correct function names that worked.  You can also see it in wordpad once you know what to look for.

i.e. the Function name
     IdleTrackerInit
Turned into
     ?IdleTrackerInit@@YAHXZ

See if that works for you