Camera API Technical Report:
Example Code

Example Code

#include <stdio.h>
#include <camera.h>
.
.
    int			num_cameras, i;
    CameraList		*cameras;
    Camera		camera;
    char		*databuf;

    /* get the list of cameras supported by the library */
    num_cameras = CameraGetList( &cameras );

    /* check status, open, read data and close each camera */
    for(i=0; i < num_cameras; i++){

        /* test camera status */
        if( CameraStatus( cameras[i]->def_init_str, cameras[i]->class ) )
            continue;
        camera = CameraInit( cameras[i]->def_init_str, cameras[i]->class );

        /* read data from the camera */
        databuf = (char *) malloc(CameraDataSize(camera));
        CameraRead(camera, databuf);
        free( databuf );

        /* close the camera */
        CameraClose( camera );

    }

Note CameraStatus() is of marginal use here because CameraInit() will return NULL on failure. CameraDataSize() is a convenience routine to calculate the total datasize associated with the current window and image depth and CameraRead() transfers data from the camera into the given buffer.