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Problem calling Delphi COM DLL from VB

I've a COM DLL function created in Delphi that can't i can't figure how to "call" from VB correctly.

I've uploaded the COM DLL (plus dependency dlls) and VB demo used to test the DLL to [url removed, login to view] The function in question is COMPOSE.PAS.

Here's the list:

COM DLL - [url removed, login to view] (run [url removed, login to view] to register the dll, ensure that the other 5 dependency dlls are in the same folder).

VB Demo - [url removed, login to view] (click on compose function, that's the problem area - the compose function isn't "called" correct from this VB demo.

Delphi Demo - [url removed, login to view] (this is the equivalent for the VB Demo, but works perfectly with [url removed, login to view]).

The purpose of this COM DLL is to generate a SMIL document, the SMIL doc generated by the VB has corrupted filenames.

This is the TLB for [url removed, login to view]:

[

uuid(836B6746-A007-4BB0-880B-E7E902BBBBE5),

version(1.0),

helpstring("Dispatch interface for Compose Object"),

dual,

oleautomation

]

interface ICompose: IDispatch

{

[

id(0x000000C9)

]

HRESULT _stdcall ComposeSMIL([in] BSTR FileName, [in] long FrameCount, [in] long FrameData );

[

propget,

id(0x000000CA)

]

HRESULT _stdcall ErrorCode([out, retval] long * Value );

[

propget,

id(0x000000CB)

]

HRESULT _stdcall ErrorString([out, retval] BSTR * Value );

};

Skills: Delphi, Visual Basic

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