Re: [Discuss-gnuradio] optional port in grc block

[Tom Rondeau]

On Sun, Jan 4, 2015 at 5:17 AM, Martin Braun <address@hidden> wrote:

Achilleas,

ports can use the <hide> tag like params do (note this tag is the last
tag for any sink or source). Just put some Cheetah code in there to
check for $debug and set hide to all, part or none.

M

There are lots of examples for how to use the hide tag in parameters and ports, though mostly for message ports. Check out the constellation_receiver XML file for how it uses a boolean parameter to determine if it should show the message port or not.

Tom

 

On 01/02/2015 07:24 PM, Achilleas Anastasopoulos wrote:
> Hi all,
>
> I would like to have grc block with a bool option "Debug".
> Once this is set to True, then I would like to have an additional output
> port.
>
> How do I do that?
>
> I already added this part in the xml file:
>
> <param>
>                 <name>Debug</name>
>                 <key>debug</key>
>                 <value>False</value>
>                 <type>bool</type>
>  </param>
>
> but now I don't know how to use this variable to make the additional
> port appear
> in the block.
>
>
> thanks
> Achilleas
>
>
> -
>
>

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