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#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <sysexits.h>
#include <CoreFoundation/CoreFoundation.h>
#include "./lib/SSVLSystemAlertVolume.h"
int main(int argc, char *argv[]) {
if (
argc == 2
&&
(
strcmp(argv[1], "-h") == 0
|| strcmp(argv[1], "--help") == 0
)
) {
puts(
"usage: sysalertvol [-h] [<volume>]\n"
"\n"
" with no arguments, print the current system alert volume\n"
" <volume> set alert volume to a value between 0 and 1\n"
" -h, --help print this help message"
);
return EX_OK;
}
OSStatus result = noErr;
Float32 volume;
// Print the current system alert volume when no arguments are given.
if (argc == 1) {
result = SSVLGetSystemVolume(&volume);
if (result != noErr) {
printf("error: can't get system volume: %d\n", result);
return EX_UNAVAILABLE;
}
printf("%f\n", volume);
return EX_OK;
}
// Set the system alert volume to the first argument.
volume = strtof(argv[1], NULL);
result = SSVLSetSystemVolume(volume);
if (result != noErr) {
printf("error: can't set system volume: %d\n", result);
return EX_UNAVAILABLE;
}
}
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