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sample-multi-detect.c

#include <stdio.h>
#include <string.h>
#include <stdlib.h>

#include <gphoto2/gphoto2-camera.h>

#include "samples.h"

/* Sample autodetection program.
 *
 * This program can autodetect multiple cameras and then calls a
 * simple function in each of them (summary).
 */

int main(int argc, char **argv) {
      CameraList  *list;
      Camera            **cams;
      int         ret, i, count;
      const char  *name, *value;
      GPContext   *context;

      context = sample_create_context (); /* see context.c */

      /* Detect all the cameras that can be autodetected... */
      ret = gp_list_new (&list);
      if (ret < GP_OK) return 1;
      count = sample_autodetect (list, context);

      /* Now open all cameras we autodected for usage */
      printf("Number of cameras: %d\n", count);
      cams = calloc (sizeof (Camera*),count);
        for (i = 0; i < count; i++) {
                gp_list_get_name  (list, i, &name);
                gp_list_get_value (list, i, &value);
            ret = sample_open_camera (&cams[i], name, value);
            if (ret < GP_OK) fprintf(stderr,"Camera %s on port %s failed to open\n", name, value);
        }
      /* Now call a simple function in each of those cameras. */
      for (i = 0; i < count; i++) {
            CameraText  text;
            char        *owner;
              ret = gp_camera_get_summary (cams[i], &text, context);
            if (ret < GP_OK) {
                  fprintf (stderr, "Failed to get summary.\n");
                  continue;
            }

                gp_list_get_name  (list, i, &name);
                gp_list_get_value (list, i, &value);
                printf("%-30s %-16s\n", name, value);
            printf("Summary:\n%s\n", text.text);

            /* Query a simple string configuration variable. */
            ret = get_config_value_string (cams[i], "owner", &owner, context);
            if (ret >= GP_OK) {
                  printf("Owner: %s\n", owner);
                  free (owner);
            } else {
                  printf("Owner: No owner found.\n");
            }

      }
      return 0;
}

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