Calling DLL from LabVIEW PDA 7.1

[yqin]

I have a DLL written in eMbedded VC++ 4.0 and it works well on my iPAQ when I called it from MS .NET Compact Framework.

Now I try to call it using LabVIEW PDA 7.1 module. But when I try to config the "Call Library Function Node". I got "Bad image. The application or dll is not a valid windows image. please check this against your installation diskette.".

I attached the dll and the VI. The function I called is defined as:
long TDR3125_Open(void);

[e-Cash-Money]

Hello yqin,

Take a look at these two Knowledge Base articles concerning the use of DLLs in LabVIEW PDA.

http://digital.ni.com/public.nsf/websearch/160BC981E2587B5486256D2F005554AA?OpenDocument
http://digital.ni.com/public.nsf/websearch/517300B49212795986256DDD00623FEE?OpenDocument

I think this information should help you out. If it doesn't, please attach a copy of the DLL you are trying to use (only the vi was attached to your last post).

Thanks,
E.Lee
Applications Engineer
National Instruments

[rolfk]

yqin wrote:

> I have a DLL written in eMbedded VC++ 4.0 and it works well on my
> iPAQ when I called it from MS .NET Compact Framework.
> Now I try to call it using LabVIEW PDA 7.1 module. But when I try
> to config the "Call Library Function Node". I got "Bad image. The
> application or dll is not a valid windows image. please check this
> against your installation diskette.".\

Could it be that your DLL is really a .Net assembly instead?

rolf Kalbermatter