Linker errors when building ActiveX DLL in Visual C++

[tmason]

Hello,

I am trying to create an ActiveX DLL with QT in Visual C++ and I get the following errors when building:

Error	1	error LNK2001: unresolved external symbol DllCanUnloadNow
Error	2	error LNK2001: unresolved external symbol DllGetClassObject
Error	3	error LNK2001: unresolved external symbol DllRegisterServer
Error	4	error LNK2001: unresolved external symbol DllUnregisterServer
Error	5	error LNK2001: unresolved external symbol DumpIDL	
Error	6	error LNK1120: 5 unresolved externals

Am I missing any library includes?

Thank you for your time.

[freddie1]

The top four of those are user created functions that must be exported from every 'In Process' COM server (Dll). You are missing inclusion of the *.obj file from your project into the linkage specification. I've never used QT and was not even aware you could create COM dlls with it, so I can't speak to how you go about fixing that in your build environment.

[tmason]

When I build using Qt Creator I don't get this problem; I do get other problems but at least I get past this.

Thank you for the help.