Using PWM and ADC at the same time

Hello,
I am new to PIC Microcontrollers, but have gone through all the tutorials.  I can write codes on my own for PWM and ADC seperately. But when I try to use both at the same time I don’t get any output signal at CCP1 *checked with Proteus also*

I am trying to use 2 buttons RC4 and RC5 to increase and decrease the PWM duty cycle. And use ADC for lighting up LEDs , but I can get any signal out of CCP1.

Here is the code I tried:

unsigned int ADC;

void main()
{
  short duty1 = 16;

  CMCON = 0x07;
  ADCON1 = 0x80;

  TRISA = 0xFF;    //input analog signal
  TRISC = 0x30;    //RC4 RC5 input button, RC2 output PWM
  TRISB = 0x00;    //output MSB's of ADC
  TRISD = 0x00;    //output LSB's of ADC

  //ADC Function
  do
  {
    ADC = ADC_Read(1);
    PORTB = ADC;
    PORTD = ADC>>2; 
  }
  while(1);

  ////////////////////////////////////////////////

  //PWM Function
  PWM1_Init(5000);
  PWM1_Start();
  PWM1_set_duty(duty1);

  while(1) 
  {
    if (PORTC.F4 == 0) 
    {
      Delay_ms(1);
      duty1++;
      PWM1_set_duty(duty1);
    }
    if (PORTC.F5 == 0)
    {
      delay_ms(1);
      duty1--;
      PWM1_set_duty(duty1);
    }
    delay_ms(100);
  }
}