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vrf Question about using VB DLL

Question asked by vinod1ram on Sep 28, 2005
Latest reply on Sep 28, 2005 by vinod1ram

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Hi,

I have been trying to use a DLL generated using VB in
a HP VEE program. I followed the instructions in the
VEE users guide (Import Library followed by Call).
The VEE program recognizes the function declared in
the header file but it pops up an error stating that
the Function was not loadable:ConfigureDevice Error
number:604. Is there a way to debug why the function
is not loadable? Is there a specific procedure to
generate the DLL so that it is easy to integrate it
with VEE?
The contents of the header file are given below:

void ConfigureDevice(int Sync,
               int Rate,
               int Anpattern,
               int Aninput,
               int Genrate,
               int Singlerror,
               int Genpattern,
               int Genoutput,
               int Generrorinject,
               int Anerrorevent)

Regards,

Vinod

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8 Replies

VRFuser Sep 28, 2005 4:17 PM
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Correct Answer
> Is there a way to debug why the function is not loadable?

Open the dll with depends.exe and check the exports window:

http://ftp.oswegosw.com/pub/depends.zip

If the function is in a class you won't be able to use it without instancing
the class. If not I don't know why, but the name probably isn't
ConfigureDevice, it's _ConfigureDevice@36. Actually, try that first. I think
I remember running into this problem with some GenRad software.
-SHAWN-

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VRFuser Sep 28, 2005 4:17 PM
Mark Correct
Correct Answer
> Is there a way to debug why the function is not loadable?

Open the dll with depends.exe and check the exports window:

http://ftp.oswegosw.com/pub/depends.zip

If the function is in a class you won't be able to use it without instancing
the class. If not I don't know why, but the name probably isn't
ConfigureDevice, it's _ConfigureDevice@36. Actually, try that first. I think
I remember running into this problem with some GenRad software.
-SHAWN-

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VRFuser Sep 28, 2005 4:17 PM
Mark Correct
Correct Answer
> Is there a way to debug why the function is not loadable?

Open the dll with depends.exe and check the exports window:

http://ftp.oswegosw.com/pub/depends.zip

If the function is in a class you won't be able to use it without instancing
the class. If not I don't know why, but the name probably isn't
ConfigureDevice, it's _ConfigureDevice@36. Actually, try that first. I think
I remember running into this problem with some GenRad software.
-SHAWN-

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VRFuser Sep 28, 2005 10:21 PM
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Correct Answer
If you use depends as Shawn suggests and see that the entry point is named something like _ConfigureDevice@40 then the function is using the __stdcall calling convention and should be declared in the header file like so:

void __stdcall ConfigureDevice(int Sync,
               int Rate,
               int Anpattern,
               int Aninput,
               int Genrate,
               int Singlerror,
               int Genpattern,
               int Genoutput,
               int Generrorinject,
               int Anerrorevent)

--
Keith

-----Original Message-----
From: Vinod Ram [mailto:vinod1ram@yahoo.com]
Sent: Thursday, September 29, 2005 12:06 AM
To: VRF
Subject: [vrf] Question about using VB DLL

Hi,

I have been trying to use a DLL generated using VB in
a HP VEE program. I followed the instructions in the
VEE users guide (Import Library followed by Call).
The VEE program recognizes the function declared in
the header file but it pops up an error stating that
the 'Function was not loadable:ConfigureDevice Error
number:604'. Is there a way to debug why the function
is not loadable? Is there a specific procedure to
generate the DLL so that it is easy to integrate it
with VEE?
The contents of the header file are given below:

void ConfigureDevice(int Sync,
               int Rate,
               int Anpattern,
               int Aninput,
               int Genrate,
               int Singlerror,
               int Genpattern,
               int Genoutput,
               int Generrorinject,
               int Anerrorevent)

Regards,

Vinod

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Search the "unofficial vrf archive" at "www.oswegosw.com/vrf_archive/".

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Search the "unofficial vrf archive" at "www.oswegosw.com/vrf_archive/".
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VRFuser Sep 28, 2005 10:21 PM
Mark Correct
Correct Answer
If you use depends as Shawn suggests and see that the entry point is named something like _ConfigureDevice@40 then the function is using the __stdcall calling convention and should be declared in the header file like so:

void __stdcall ConfigureDevice(int Sync,
               int Rate,
               int Anpattern,
               int Aninput,
               int Genrate,
               int Singlerror,
               int Genpattern,
               int Genoutput,
               int Generrorinject,
               int Anerrorevent)

--
Keith

-----Original Message-----
From: Vinod Ram [mailto:vinod1ram@yahoo.com]
Sent: Thursday, September 29, 2005 12:06 AM
To: VRF
Subject: [vrf] Question about using VB DLL

Hi,

I have been trying to use a DLL generated using VB in
a HP VEE program. I followed the instructions in the
VEE users guide (Import Library followed by Call).
The VEE program recognizes the function declared in
the header file but it pops up an error stating that
the 'Function was not loadable:ConfigureDevice Error
number:604'. Is there a way to debug why the function
is not loadable? Is there a specific procedure to
generate the DLL so that it is easy to integrate it
with VEE?
The contents of the header file are given below:

void ConfigureDevice(int Sync,
               int Rate,
               int Anpattern,
               int Aninput,
               int Genrate,
               int Singlerror,
               int Genpattern,
               int Genoutput,
               int Generrorinject,
               int Anerrorevent)

Regards,

Vinod

---
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Search the "unofficial vrf archive" at "www.oswegosw.com/vrf_archive/".

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Search the "unofficial vrf archive" at "www.oswegosw.com/vrf_archive/".
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VRFuser Sep 28, 2005 10:21 PM
Mark Correct
Correct Answer
If you use depends as Shawn suggests and see that the entry point is named something like _ConfigureDevice@40 then the function is using the __stdcall calling convention and should be declared in the header file like so:

void __stdcall ConfigureDevice(int Sync,
               int Rate,
               int Anpattern,
               int Aninput,
               int Genrate,
               int Singlerror,
               int Genpattern,
               int Genoutput,
               int Generrorinject,
               int Anerrorevent)

--
Keith

-----Original Message-----
From: Vinod Ram [mailto:vinod1ram@yahoo.com]
Sent: Thursday, September 29, 2005 12:06 AM
To: VRF
Subject: [vrf] Question about using VB DLL

Hi,

I have been trying to use a DLL generated using VB in
a HP VEE program. I followed the instructions in the
VEE users guide (Import Library followed by Call).
The VEE program recognizes the function declared in
the header file but it pops up an error stating that
the 'Function was not loadable:ConfigureDevice Error
number:604'. Is there a way to debug why the function
is not loadable? Is there a specific procedure to
generate the DLL so that it is easy to integrate it
with VEE?
The contents of the header file are given below:

void ConfigureDevice(int Sync,
               int Rate,
               int Anpattern,
               int Aninput,
               int Genrate,
               int Singlerror,
               int Genpattern,
               int Genoutput,
               int Generrorinject,
               int Anerrorevent)

Regards,

Vinod

---
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Search the "unofficial vrf archive" at "www.oswegosw.com/vrf_archive/".

---
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Search the "unofficial vrf archive" at "www.oswegosw.com/vrf_archive/".
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vinod1ram Sep 28, 2005 11:06 PM
Mark Correct
Correct Answer
Hi,

I have been trying to use a DLL generated using VB in
a HP VEE program. I followed the instructions in the
VEE users guide (Import Library followed by Call).
The VEE program recognizes the function declared in
the header file but it pops up an error stating that
the Function was not loadable:ConfigureDevice Error
number:604. Is there a way to debug why the function
is not loadable? Is there a specific procedure to
generate the DLL so that it is easy to integrate it
with VEE?
The contents of the header file are given below:

void ConfigureDevice(int Sync,
               int Rate,
               int Anpattern,
               int Aninput,
               int Genrate,
               int Singlerror,
               int Genpattern,
               int Genoutput,
               int Generrorinject,
               int Anerrorevent)

Regards,

Vinod

---
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To subscribe send a blank email to "join-vrf@it.lists.it.agilent.com".
To unsubscribe send a blank email to "leave-vrf@it.lists.it.agilent.com".
To send messages to this mailing list, email "vrf@agilent.com".
If you need help with the mailing list send a message to "owner-vrf@it.lists.it.agilent.com".
Search the "unofficial vrf archive" at "www.oswegosw.com/vrf_archive/".
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vinod1ram Sep 28, 2005 11:06 PM
Mark Correct
Correct Answer
Hi,

I have been trying to use a DLL generated using VB in
a HP VEE program. I followed the instructions in the
VEE users guide (Import Library followed by Call).
The VEE program recognizes the function declared in
the header file but it pops up an error stating that
the Function was not loadable:ConfigureDevice Error
number:604. Is there a way to debug why the function
is not loadable? Is there a specific procedure to
generate the DLL so that it is easy to integrate it
with VEE?
The contents of the header file are given below:

void ConfigureDevice(int Sync,
               int Rate,
               int Anpattern,
               int Aninput,
               int Genrate,
               int Singlerror,
               int Genpattern,
               int Genoutput,
               int Generrorinject,
               int Anerrorevent)

Regards,

Vinod

---
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To unsubscribe send a blank email to "leave-vrf@it.lists.it.agilent.com".
To send messages to this mailing list, email "vrf@agilent.com".
If you need help with the mailing list send a message to "owner-vrf@it.lists.it.agilent.com".
Search the "unofficial vrf archive" at "www.oswegosw.com/vrf_archive/".
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vrf Question about using VB DLL

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