Sim sound on/off

[DragonflightDesign]

Is there any way of easily detecting whether the simulator sound is on or off (key Q by default)? I thought there was at one time, but I can't find anything relevant in the simvars.

 

[WarpD]

I don't recall anything that would indicate whether sound was on or off.

 

[rcbarend]

Is there any way of easily detecting whether the simulator sound is on or off (key Q by default)? I thought there was at one time, but I can't find anything relevant in the simvars.

Should be in SimConnect somewhere, since Dougs XMLSound gauge make this state available in an Lvar (FSSoundIsOn).

Rob

 

[tgibson]

Which means you could use Doug's gauge to do it.

 

[DragonflightDesign]

It's not quite what you think, Rob/Tom.

GAUGE_KEY_EVENT_HANDLER FSAPI SoundTrap ( ID32 event, UINT32 evdata, PVOID userdata )
{
switch( event )
    {
    case KEY_SOUND_TOGGLE:
        {
        SoundIsOn = 1 - SoundIsOn;
        FSSoundStatus.SetLVar( (double)SoundIsOn );
        }
    break;
    case KEY_SOUND_SET:
        {
        SoundIsOn = evdata;
        FSSoundStatus.SetLVar( (double)SoundIsOn );
        }
    break;
    case KEY_SOUND_ON:
        {
        SoundIsOn = 1;
        FSSoundStatus.SetLVar( (double)SoundIsOn );
        }
    break;
    case KEY_SOUND_OFF:
        {
        SoundIsOn = 0;
        FSSoundStatus.SetLVar( (double)SoundIsOn );
        }
    break;
    }
return 0;
};

It's reporting the key_events, not the actual state of the sim sound. If someone hits the 'Q' key, I want to silence my whole cockpit.

 

[WarpD]

In fact... if I save a flight with sound off... and load that flight... then press the 'Q' key... that variable would then be set to 0 which would be incorrect.

 

[rcbarend]

It's not quite what you think, Rob/Tom.

GAUGE_KEY_EVENT_HANDLER FSAPI SoundTrap ( ID32 event, UINT32 evdata, PVOID userdata )
{
switch( event )
    {
    case KEY_SOUND_TOGGLE:
        {
        SoundIsOn = 1 - SoundIsOn;
        FSSoundStatus.SetLVar( (double)SoundIsOn );
        }
    break;
    case KEY_SOUND_SET:
        {
        SoundIsOn = evdata;
        FSSoundStatus.SetLVar( (double)SoundIsOn );
        }
    break;
    case KEY_SOUND_ON:
        {
        SoundIsOn = 1;
        FSSoundStatus.SetLVar( (double)SoundIsOn );
        }
    break;
    case KEY_SOUND_OFF:
        {
        SoundIsOn = 0;
        FSSoundStatus.SetLVar( (double)SoundIsOn );
        }
    break;
    }
return 0;
};

It's reporting the key_events, not the actual state of the sim sound. If someone hits the 'Q' key, I want to silence my whole cockpit.

Hmm.. interresting ....
Is the code above your code or from Dougs XMLSound gauge ??
Just asking, since your code uses an Lvar SoundIsOn, where Dougs XMLSound gauge uses an Lvar named FSSoundIsOn.

Which is ALWAYS in sync which the actual Sound status (on or off); so it must be possible to read/maintain the current state somehow.

Getting curious how Dougs XMLSound gauge determines the current Sound state, I did a few tests (that is: in FSX-Accell).
There are two places (I know of) that FSX writes the current state of the Sound:
1. In the FSX.cfg file, as in:
[SOUND]
SOUND=1 (sound is On)

Which is the current state written when you exit FSX.

2. In a saved .FLT file, as in :
[Options]
Sound=False (Sound is Off)

However, the latter value (as I have tested it) has NO effect at all: meaning that FSX is running, and Sound is currently ON, and you load a flight with Sound=False in the .FLT file, the flight still loads with the sound On.

So maybe Dougs XMLSound gauge reads the sound state defined in FSX.cfg and then maintains changes by trapping events ??
You have to ask Doug how he does that …..
I can only conclude (based on my tests), that the value of his Lvar FSSoundIsOn ALWAYS reflects the actual sound state On or Off.

Rob

 

[kalong]

it is SimConnect:
SimConnect_SubscribeToSystemEvent

 

[DragonflightDesign]

Rob: that's extracted from Doug's code. I've been talking to him recently and he admits that he's lost interest in flight simulation. He was good enough to pass some of his source code across and of course, there's a lot more available on his website still. I did a skim-read of the xml sound gauge code but from what you're saying, I need to look at it in more detail.

kalong: I'll check that out.

Probably more in hope than anything else, I lobbed a feature request at LMCO for a 'sound is on/off' boolean.

 

[WarpD]

Heh... he's right... it's available via the SubscribeToSystemEvent in SimConnect. Talk about buried. LOL

 

[DragonflightDesign]

As usual, I'm now at the wrong end of the garden path and the shovel is in the shed...

OnReceiveOpen:

    hr = SimConnect_SubscribeToSystemEvent(hSimConnect, EVENT_SOUND_STATE, "Sound");

OnReceiveEvent

    switch (pEvent->uEventID)
    {
        case CLIENT_6HZ:
        {
            // Sound state
            hr = SimConnect_RequestSystemState(hSimConnect, EVENT_SOUND_STATE, "Sound");
        }
    }

OnReceiveSystemState

    if (pData->dwRequestID)
    {
        switch (pData->dwRequestID)
        {
            case EVENT_SOUND_STATE:
                // What do I do here?
            break;
        }
    }

Any half-sensible replies? Any variation on 'write some code' will be politely ignored...

 

[WarpD]

First... I thought the system event was not a timed response but rather is sent whenever the value has changed?
When you first subscribe, it should immediately return to you the current state of the sound toggle... a 1 is ON and a 0 is OFF. Each subsequent time you get this event it should show you the new value (which by logical conclusion will be the opposite of what it was before).

Not sure why you're doing request repeatedly...

 

[DragonflightDesign]

Because I'm an ID-10-T?