typedef enum _SM_USER_MODE
{
    SM_POWERUP,
    SM_ONLINE,
    SM_OFFLINE,
    SM_IDENTIFY
} SM_USER_MODE;

Example Usage

typedef enum _SM_USER_MODE
{
    SM_POWERUP,
    SM_IDLE
} SM_USER_MODE;


void my_function (void)
{
	static int user_mode = SM_POWERUP;
	static int user_mode_last = ~SM_POWERUP;
	BYTE this_is_new_mode = 0;

	//----- CHECK FOR THIS IS NEW MODE -----
	if (user_mode_last != user_mode)
	{
		this_is_new_mode = 1;
		user_mode_last = user_mode;
	}


	//--------------------------------
	//--------------------------------
	//----- PROCESS CURRENT MODE -----
	//--------------------------------
	//--------------------------------
	switch (user_mode)
	{
	case SM_POWERUP:
		//--------------------
		//--------------------
		//----- POWER UP -----
		//--------------------
		//--------------------
		if (this_is_new_mode)
		{
			//----- JUST ENTERED THIS MODE -----

		}

		//Do something, then
		//user_mode = SM_IDLE;
		break;

	case SM_IDLE:
		//----------------
		//----------------
		//----- IDLE -----
		//----------------
		//----------------
		if (this_is_new_mode)
		{
			//----- JUST ENTERED THIS MODE -----

		}

		break;


	//<<<<< ADD OTHER MODES HERE


	} //switch (user_mode)

}