gistfile1.c

            FILE *fp = fopen("/Users/dennda/Desktop/binary.buf", "wb");
            size_t count;
           
            if(fp == NULL) {
                printf("failed to open sample.txt\n");
                assert(0);
            }
            count = fwrite((const char*) imgData, sizeof(unsigned short), width*height, fp);
            printf("Wrote %zu bytes. fclose(fp) %s.\n", width*height, fclose(fp) == 0 ? "succeeded" : "failed");
            return;