Example of Vex pro v5 callback

VEX V5 General Discussion
7

code that works 
using namespace vex;

// just for the example ......
vex::motor IntakeL(PORT1);
vex::motor IntakeR(PORT2);
vex::controller Controller;

void spinIntakes() {
     IntakeL.spin(forward);
     IntakeR.spin(forward);
}

void usercontrol() {
    while(true) {
      //user code here
    
      // sleep a while
      this_thread::sleep_for(20);
    }
}

int main(){
    // register callbacks once only...
    Controller.ButtonL1.pressed( spinIntakes );

    while(true){
      // perhaps something can happen here

      // sleep a while
      this_thread::sleep_for(20);
    }
}