"Tom Shelton" <t**@mtogden.com> schreef in bericht
news:1154161265.375548.86670@h48g2000cwc.googlegroups.com...
>
> TC wrote:
>> I'm using VB.NET 2005. I need to create a DLL containing a function
>> F(). A VB.NET application will reference the DLL by using a Declare
>> statement.
>>
>>     Declare Function F Lib "Foo.dll" (ByVal Woo As String) As Double
>>
>> When I write the DLL and test it, however, I get a runtime error.
>>
>>     Unable to find an entry point named 'F' in DLL 'Foo.dll'.
>>
>> Judging from the error, it sounds like I need to create an "entry
>> point" in my DLL. Can anyone tell me how to do that?
>>
>
> You can't.  Declare statements are used to interact with native dll's
> not managed dll's, in other words, managed applications do not
> reference managed dll's via a declare statement.  You will need to
> write your dll in a language that supports this - like C++, PowerBasic,
> etc.
>
> Of course, there may be hacks to do this, just as there were for
> VB.CLASSIC.  I haven't looked, nor would I ever suggest anyone did
> this.  It is just not the way the tool your using works.
>
> --
> Tom Shelton
>

"Michel Posseth [MCP]" <M***@posseth.com> schreef in bericht
news:egJNKG9sGHA.4140@TK2MSFTNGP06.phx.gbl...
>
> Hacks , for Vb classic ???
>
> http://www.windowsdevcenter.com/pub/a/windows/2005/04/26/create_dll.html
>
> i do not see somuch hack about it ,, i see it more as a undocumented
> feature :-)
>
> Haven`t tried it but it might also work in VB.Net
>
>
> regards
>
> Michel Posseth
>
>
>
> "Tom Shelton" <t**@mtogden.com> schreef in bericht
> news:1154161265.375548.86670@h48g2000cwc.googlegroups.com...
>>
>> TC wrote:
>>> I'm using VB.NET 2005. I need to create a DLL containing a function
>>> F(). A VB.NET application will reference the DLL by using a Declare
>>> statement.
>>>
>>>     Declare Function F Lib "Foo.dll" (ByVal Woo As String) As Double
>>>
>>> When I write the DLL and test it, however, I get a runtime error.
>>>
>>>     Unable to find an entry point named 'F' in DLL 'Foo.dll'.
>>>
>>> Judging from the error, it sounds like I need to create an "entry
>>> point" in my DLL. Can anyone tell me how to do that?
>>>
>>
>> You can't.  Declare statements are used to interact with native dll's
>> not managed dll's, in other words, managed applications do not
>> reference managed dll's via a declare statement.  You will need to
>> write your dll in a language that supports this - like C++, PowerBasic,
>> etc.
>>
>> Of course, there may be hacks to do this, just as there were for
>> VB.CLASSIC.  I haven't looked, nor would I ever suggest anyone did
>> this.  It is just not the way the tool your using works.
>>
>> --
>> Tom Shelton
>>
>
>

> TC wrote:
> > I'm using VB.NET 2005. I need to create a DLL containing a function
> > F(). A VB.NET application will reference the DLL by using a Declare
> > statement.
> >
> >     Declare Function F Lib "Foo.dll" (ByVal Woo As String) As Double
> >
> > When I write the DLL and test it, however, I get a runtime error.
> >
> >     Unable to find an entry point named 'F' in DLL 'Foo.dll'.
> >
> > Judging from the error, it sounds like I need to create an "entry
> > point" in my DLL. Can anyone tell me how to do that?
> >
>
> You can't.  Declare statements are used to interact with native dll's
> not managed dll's, in other words, managed applications do not
> reference managed dll's via a declare statement.  You will need to
> write your dll in a language that supports this - like C++, PowerBasic,
> etc.
>
> Of course, there may be hacks to do this, just as there were for
> VB.CLASSIC.  I haven't looked, nor would I ever suggest anyone did
> this.  It is just not the way the tool your using works.
>
> --
> Tom Shelton