Creation of Dynamic Link Library

[KarthikSankar]

I'm trying to create a dll from Visual C++ environment and then calling it in Visual Basic. When I do this the Visual Basic application closes. I can't understand the problem. Can anyone help me.

 

[jmarler]

Is the C++ DLL a COM object, or is it a simple set of functions exported through an API. Also, when VB application closes, do you get any kind of error? - Jeff Marler B-)

 

[KarthikSankar]

No it is not a COM object. We defined a type library in C and created a dll. It does the necessary function which it has to do in VB. But it closes the VB application without any error. Sometimes it pops an error saying unreferenced memory, but this occurence is rare.
As an EXE the function is working perfectly well. But the problem crops up when it is converted to dll.
Is the process of creating dll using type libraries correct or is there any other way you can overcome this.

Waiting for your reply,
Thanks Marler.

With Regards,
KarthikSankar

 

[chiph]

Did you export your public functions via a .DEF file, and did you surround the function prototype with extern "C" { } ?

Chip H.