RE: Proposal to write a serial driver

[Jim K. <jk...@ja...>]

This may not solve the problem, but...

VISA controls/indicators have a property called UpdatedTagList[] which
queries the VISA driver and returns the latest list of items available (in
LV 7.1, but I haven't checked previous versions).

-Jim Kring

> -----Original Message-----
> From: ope...@li... 
> [mailto:ope...@li...] 
> On Behalf Of Rolf Kalbermatter
> Sent: Sunday, January 16, 2005 4:11 PM
> To: ope...@li...
> Subject: RE: Proposal to write a serial driver
> 
> Martin Henz wrote:
> 
> > I have to change my job or my customers, before I can change
> > the oS :->
> > 
> > I  don't know who really is responsible for this effect, but
> > I  can  access  the  serial ports if I call the OS functions
> > directly (without VISA).
> 
> I think you can do so as well in VISA. The problem is that the
> pop-up menu is not dynamically repopulated whenever the resources
> change. But VISA should probably be able to access a port as soon
> as it gets available. Just use a VISA resource control which
> allows for undefined resources or use a sting control instead.
> The VISA Node will automatically coerce that string in a VISA
> resource.
> 
> Rolf Kalbermatter
> 
> 
> 
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