sscanf - error: invalid use of non-static member function

[truth]

Why am I getting error 46: error: invalid use of non-static member function for what seems to be an simple use of sscanf?
If it is pertinent, I'm using the Visual Micro Arduino IDE in Visual Studio Pro 2107.

void valveCommandHandler(const String& inString)
{
	u_char index;
	char cmd;

	sscanf(inString.c_str, "%d%c", &index, &cmd);

	switch (cmd)
	{
	case 'o':
		valves[index].open();
		Serial.printf("Valve %d opened\n", index);
		break;
	case 'x':
		valves[index].close();
		Serial.printf("Valve %d closed\n", index);
		break;
	case 's':
		Serial.printf("Valve %d: %s\n", index, (valves[0].getState()) ? "Open" : "Closed");
		break;
	default:
		break;
	}
}

 

[manitou]

try adding parentheses
sscanf(inString.c_str(), "%d%c", &index, &cmd);

 

[truth]

Why am I getting error 46: error: invalid use of non-static member function for what seems to be an simple use of sscanf?
If it is pertinent, I'm using the Visual Micro Arduino IDE in Visual Studio Pro 2107.

void valveCommandHandler(const String& inString)
{
	u_char index;
	char cmd;

	sscanf(inString.c_str, "%d%c", &index, &cmd);

	switch (cmd)
	{
	case 'o':
		valves[index].open();
		Serial.printf("Valve %d opened\n", index);
		break;
	case 'x':
		valves[index].close();
		Serial.printf("Valve %d closed\n", index);
		break;
	case 's':
		Serial.printf("Valve %d: %s\n", index, (valves[0].getState()) ? "Open" : "Closed");
		break;
	default:
		break;
	}
}

Needless to say, thank you.

I'm so ashamed...
I knew it was something obvious.
I can only blame lack of sleep...
I swear I can hear you snickering...

ADMIN: please remove this post as it is embarrassing, unless of course it could prove useful to some other idiot