53     fprintf(stderr, R"(  in usage()
130         fprintf(stderr, "Unable to fork in order to send intent for media scanner.\n");  in notifyMediaScanner()
136             fprintf(stderr, "Unable to open /dev/null for media scanner stdout redirection.\n");  in notifyMediaScanner()
147         fprintf(stderr, "Unable to broadcast intent for media scanner.\n");  in notifyMediaScanner()
161         fprintf(stderr, "Failed to take screenshot. Status: %d\n",  in capture()
185         fprintf(stderr, "Failed to take screenshot (%s)\n", reason.c_str());  in saveImage()
193             fprintf(stderr, "Error writing to stdout. (%s)\n", strerror(errno));  in saveImage()
199             fprintf(stderr, "Error opening file: %s (%s)\n", fn, strerror(errno));  in saveImage()
221             fprintf(stderr, "Failed to compress PNG (error code: %d)\n", result);  in saveImage()
255         fprintf(stderr, "Failed to get ID for any displays.\n");  in main()
275                     fprintf(stderr, "Invalid display ID: Out of range [0, 2^64).\n");  in main()
281                     fprintf(stderr, "Invalid display ID: Incorrect encoding.\n");  in main()
342             fprintf(stderr,  in main()
346             fprintf(stderr, "A display ID can be specified with the [-d display-id] option.\n");  in main()
347             fprintf(stderr, "See \"dumpsys SurfaceFlinger --display-id\" for valid display IDs.\n");  in main()
367             fprintf(stderr, "Capturing failed.\n");  in main()
387             fprintf(stderr, "Saving image failed.\n");  in main()