J
Justin Starnes
Is it possible to late bind to a dll written in C# from VB6? If so, does
anyone have an example.
anyone have an example.
You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an alternative browser.
You should upgrade or use an alternative browser.
R
Rob Windsor
Yes, you need to use COM Interop. Here are some links.
C# Programmer's Reference
COM Interop Part 2: C# Server Tutorial
http://msdn.microsoft.com/library/d.../html/vcwlkcominteroppart2cservertutorial.asp
..NET Framework Developer's Guide
Exposing .NET Framework Components to COM
http://msdn.microsoft.com/library/d.../cpconexposingnetframeworkcomponentstocom.asp
C# Programmer's Reference
COM Interop Part 2: C# Server Tutorial
http://msdn.microsoft.com/library/d.../html/vcwlkcominteroppart2cservertutorial.asp
..NET Framework Developer's Guide
Exposing .NET Framework Components to COM
http://msdn.microsoft.com/library/d.../cpconexposingnetframeworkcomponentstocom.asp
V
Vadim Melnik
Hi,
It's possible but you need somehow instantiate this object. mscoree.dll
exposes undocumented ClrCreateManagedInstance function, it's declared in
mscoree.h as the following:
STDAPI ClrCreateManagedInstance(LPCWSTR pTypeName, REFIID riid, void
**ppObject);
and C++ usage:
HRESULT hr = ClrCreateManagedInstance(L"ClrTestLib.CFoo, ClrTestLib,
Version=1.0.1207.27541, Culture=neutral, PublicKeyToken=a8c61b7e4c98192e",
IID_IUnknown, reinterpret_cast<void**>(&spUnk));
Or you can use technique described in "Microsoft .NET: Implement a Custom
Common Language Runtime Host for Your Managed App" MSDN Magazine article to
create CLR by CorBindToRuntimeEx call, then Start it, and then create or
retrieve default domain by ICorRuntimeHost::CreateDomain/GetDefaultDomain,
and after use it to instantiate class instance - e.g.
AppDomain.CreateInstanceFrom.
...
Cheers,
Vadim.
Is it possible to late bind to a dll written in C# from VB6? If so, does
anyone have an example.
It's possible but you need somehow instantiate this object. mscoree.dll
exposes undocumented ClrCreateManagedInstance function, it's declared in
mscoree.h as the following:
STDAPI ClrCreateManagedInstance(LPCWSTR pTypeName, REFIID riid, void
**ppObject);
and C++ usage:
HRESULT hr = ClrCreateManagedInstance(L"ClrTestLib.CFoo, ClrTestLib,
Version=1.0.1207.27541, Culture=neutral, PublicKeyToken=a8c61b7e4c98192e",
IID_IUnknown, reinterpret_cast<void**>(&spUnk));
Or you can use technique described in "Microsoft .NET: Implement a Custom
Common Language Runtime Host for Your Managed App" MSDN Magazine article to
create CLR by CorBindToRuntimeEx call, then Start it, and then create or
retrieve default domain by ICorRuntimeHost::CreateDomain/GetDefaultDomain,
and after use it to instantiate class instance - e.g.
AppDomain.CreateInstanceFrom.
...
Cheers,
Vadim.
P
Phil Wilson
If you mean classic late binding as in VB CreateObject("Progid") and
IDispatch-based calls, start with Type.GetTypeFromProgID.
IDispatch-based calls, start with Type.GetTypeFromProgID.