HTTP commands for incremental volume adjustment

[xmartliving]

I’m currently integrating WiiM devices into a residential automation system and using local HTTP commands for control. At the moment, I’m successfully applying the following syntax to set the volume directly:
http://192.168.0.153/httpapi.asp?command=setPlayerCmd:vol:30

I’d like to know if there is an HTTP command available that allows incremental volume adjustments, such as increasing or decreasing the volume by a specific number of steps e.g., raise volume by 5+ units or lower by 3- without setting an absolute value.
Is there a syntax like VOL +5 , VOL-3 or perhaps a command such as that supports this kind of relative adjustment?

 

[Burnside]

See
Post in thread 'Universal remote support'
https://forum.wiimhome.com/threads/universal-remote-support.2315/post-134967

 

[xmartliving]

hi Burnside I try these command http://192.168.0.153/httpapi.asp?command=setPlayerCmd:vol++ but the volume rise by 1 increment not 6

 

[Burnside]

hi Burnside I try these command http://192.168.0.153/httpapi.asp?command=setPlayerCmd:vol++ but the volume rise by 1 increment not 6

That’s what I said in that link