convert string to ViChar* in function viOpen

[Hlodwig]

Hello,

I try to use viOpen function with an IP Adress stored in a variable.

The function wants a ViChar*

I tryed all i can imagine : converting in string, c-string and byte array to cast in ViChar* but all failed.

Sometimes, the compiler tell me an illegal cast, other times le program crashs when executing the function.

Can someone to help me ?

(P.S : I work in C++).

[nyc_(is_out_of_here)]

Have you looked at the included examples that are installed when you install NI-VISA and NI-488.2?

In XP, they are located at  C:\Documents and Settings\All Users\Documents\National Instruments\NI-488.2\Examples  and   C:\Documents and Settings\All Users\Documents\National Instruments\NI-VISA\Examples

[Hlodwig]

I don't have those examples because I use Windows 7.

I found programming samples in C:\ProgramData\Agilent\Agilent IO Libraries Programming Samples\ but that not help me because no one show how to use a variable to give the adress string to the viOpen function.

[nyc_(is_out_of_here)]

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@Hlodwig wrote:

I don't have those examples because I use Windows 7.

I found programming samples in C:\ProgramData\Agilent\Agilent IO Libraries Programming Samples\ but that not help me because no one show how to use a variable to give the adress string to the viOpen function.

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The NI examples will be in a different directory for Windows 7. They are there. I have Windows 7 on a laptop at home.

EDIT:  Since you are using Agilent's software, why are you here????

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Agilent has their own message boards.