Using the old NI bas-files for accessing a GPIB board in Visual Basic.NET

[C3]

Unfortunately, the GPIB Beta Enrollment Data page breaks as soon as I click the Submit button.
I get "A Runtime Error has occurred. Do you wish to Debug? Line: 0 Error: Object expected".

It would be really helpful if someone could just email the NI-488.2 VB.NET beta files to me at c3@hp.com.

I've wasted all week so far fighting NI-488.2 & VB.NET
(I've been using NI-488.2 & VB3/4/5 successfully for the last decade - I don't want/shouldn't need to learn how to address the DLL directly. I'm an engineer, not a programmer.)

I know that NI has the solution; please make it easy for us long-term customers to get the code we need, when we need it. Warts and all if necessary - we'll help you debug it.

Chris Coleman
Hewlett-Packard Ltd
.

[kdeii]

Hi Jason,
I did almost the same thing as you mentioned. Only thing is not working is the ilrd calls. The VB.Net is a 16 bit based character, and the VB 6.0 is 8 bit based character. Fortunately ilwrt is working well. ibrd doesn't seem can work, unless we changed the system back to 8 bit char by some code at the top of the main module, I don't know how to do it yet.
I am just wondering how did you deal with this problem and make the ilrd working.
Thanks
Kang

[ndiamond]

In VB 6.0 the mix of 8-bit and 16-bit characters depends on which ANSI code page you're using. I read that the executable code of VB 6.0 programs already uses Unicode internally and guessed that the VB 6.0 runtime library translates between that and a chosen code page assumed for the language version of the OS. Just now I tested this by telling VB6 to compute Len("東京") and it said 2 not 4, so indeed it's counting characters not bytes.

I read that in VB .Net the default is to assume that Unicode is used everywhere. In order to make the executable code translate between that and a chosen code page assumed in some manner, the keyword ANSI can be included in a VB DECLARE statement. I haven't had an opportunity to test this, but yo
u do, and you could let me (and everyone) know if it works 🙂

[kdeii]

"keyword ANSI can be included in a VB DECLARE stateme"
Doesn't work at all. It may need to convert entire page or program to 8 bit character scheme.

Kdeii

[AE]

Hi Guys,

I've got an example here where the two files are used in VB.net. This works fine for one of my customers.

Regards.

Applications Engineer
NI Belgium