Encoder for Rpm help!

[Ro13star]

Hi, i am a new programmer for my team and i am having problems with using the data from the encoder in the program. i have confirmed the encoder works with a multi-meter. the encoder is a us Digital e4p.
this is the relevant part of my code please help:

class RobotOscar : public IterativeRobot
{
// RobotDrive myRobotDrive; // robot drive system

Jaguar shooter_motor;
Jaguar shooter_motor2;
Encoder left_shooter;
double count;

public:
RobotOscar(void):


shooter_motor(3),
shooter_motor2(4),
left_shooter (3,4,false)

...
...
void TeleopInit(void) {
printf("Telop Init Entry\n");
left_shooter.Start();
left_shooter.Reset();
}
...
...
void TeleopContinuous(void)
{



while(IsEnabled() && IsOperatorControl()){
count=left_shooter.Get();


printf("count= %f \n", count);

}
}
also can you use one pwm to a digital imput to get just the A channel from the encoder for rpm only. << is the current set up