##### Ninja Library - Light Function

# njLightOn

Turns on a light that was set by the njCreateLight() function.

### FORMAT

`

  void njLightOn( *ptr )
  NJS_LIGHT *ptr

`

### PARAMETER

  `*ptr` | Pointer to light source

### RETURN

  None

### DESCRIPTION

  Turns on the light source that is set to off. (Since the default is light on, this function doesn't need to be called.)

### EXAMPLE

      #include <Shinobi.h>
      	:
      NJS_LIGHT light;
      sbInitSystem( NJD_RESOLUTION_VGA, NJD_FRAMEBUFFER_MODE_RGB565, 1);
      njCreateLight(&light, NJD_DIR_LIGHT);
      	:
      /* Turn off parallel light source */
      njLightOff(&light);
      	:
      /* Turn on parallel light source */
      njLightOn(&light);

### NOTE

  Functions njCreateLight/njDeleteLight and njLightOn/njLightOff operate as if installing light bulb/removing light bulb and turning on and off an electric lights.

### REFERENCE

  `njCreateLight()
  njLightOff()
  `

njLightOn

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