Hi Antonio, so NULL is just a regular identifier in LED I guess. This explains the error message. Sorry to bother.

Thanks
MI

On 5/2/2015 18:17, Antonio Scuri wrote:

   Hi, unfortunately there is no NULL in LED, nor optional parameters.

Best,
Scuri

Em 02/05/2015 13:13, "Mihail Ivanchev" <[email protected] <mailto:[email protected]>> escreveu:

    Hello IUP,

    just discovered a potential small bug. I am trying to create a button
    with empty title and an image:

    listDevicesBtn = BUTTON[IMAGE="imgListDevices"](NULL, onListDevices)

    This generates an error "bad input at line 4 - expected string but
    found
    identifier" although the documentation says I can use NULL as a title.
    Using "" works though.

    Regards
    MI

    
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Deep dive visibility with transaction tracing using APM Insight.
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