[Ko2bnt]

Hi there! Maybe I'm wrong with choosing the forum thread, if so, I'm sorry.

First of all, I'm writing HL2: DM server from Valve Source SDK 2013 so I can't edit client code, I'm working only with server code.

Now I'm trying to get cvar's value from the server side (not a plugin, I don't want to build a plugin just to getting cvar values). ATM I use engine->StartQueryCvarValue like that ('cl_playermodel' just for example):

int nQueryResult = (int)engine->StartQueryCvarValue(pPlayer->edict(), "cl_playermodel");

I'm trying to catch the result on CServerGameDLL::OnQueryCvarValueFinished that declared as:

virtual void			OnQueryCvarValueFinished(QueryCvarCookie_t iCookie, edict_t *pPlayerEntity, EQueryCvarValueStatus eStatus, const char *pCvarName, const char *pCvarValue);

But! I get negative values in the nQueryResult (as far as I know, that means the engine consider it as a query from a server and should respond something to IServerGameDLL::OnQueryCvarValueFinished) and... nothing happens. No errors, no values got.

Can somebody explain me how I can get convar values from the server code? Thanks a lot for any help!

[Fyren]

When you say the return is negative, do you mean it's -1? That's a special value to tell you that the edict you passed is bad and you won't get a callback.

[Ko2bnt]

Originally Posted by Fyren When you say the return is negative, do you mean it's -1? That's a special value to tell you that the edict you passed is bad and you won't get a callback.

I know about that (the sdk says "Returns InvalidQueryCvarCookie if the entity is invalid.") But I mean -1, -2, -3 etc values. I had take a look into engine code and I found that in case of StartQueryCvarValue call from the server dll the engine returns values as negative:

// Send a message to the client asking for the value.
SVC_GetCvarValue msg;
msg.m_iCookie = g_iQueryCvarCookie++;
msg.m_szCvarName = pCvarName;

// If the query came from the game DLL instead of from a plugin, then we negate the cookie
// so it knows who to callback on when the value arrives back from the client.
if ( !bPluginQuery )
	msg.m_iCookie = -msg.m_iCookie;
	
client->SendNetMsg( msg );
return msg.m_iCookie;

Besides, the edict I sent absolutely cannot be bad, I can say it for sure. I've read that post, I do the same, but it does not work:

mp\src\game\server\gameinterface.cpp

void CServerGameDLL::OnQueryCvarValueFinished(QueryCvarCookie_t iCookie, edict_t *pPlayerEntity, EQueryCvarValueStatus eStatus, const char *pCvarName, const char *pCvarValue)
{
	Msg("CServerGameDLL::OnQueryCvarValueFinished : %s, %s\n", pCvarName, pCvarValue);
}

void CC_TestCvar(const CCommand& args)
{
	CBasePlayer *pPlayer = UTIL_GetCommandClient();

	if (!pPlayer)
		return;

	int nQueryResult = engine->StartQueryCvarValue(pPlayer->edict(), "cl_playermodel");
	Msg("nQueryResult : %d\n", nQueryResult);
}
static ConCommand test_cvar("test_cvar", CC_TestCvar, "", FCVAR_NONE);

Message from CServerGameDLL::OnQueryCvarValueFinished does not appear and I don't see any error messages in server or client console.

[Fyren]

Since cl_playermodel in the base SDK appears to have the userinfo flag, I think you should be able to use GetClientConVarValue on the engine. I don't know why the async query wouldn't work, though.

If no one else has any ideas, you can try asking for help in #hlcoders on GameSurge.

[Ko2bnt]

cl_playermodel is just an example. I want to get cvars like mat_wireframe etc. So GetClientConVarValue can't help me. But thank you anyway.