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#include <windows.h>
#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
#include <string>
#include <vector>
static HANDLE getConout() {
HANDLE conout = GetStdHandle(STD_OUTPUT_HANDLE);
if (conout == INVALID_HANDLE_VALUE) {
fprintf(stderr, "error: cannot get stdout\n");
exit(1);
}
return conout;
}
static DWORD getConsoleMode() {
DWORD mode = 0;
if (!GetConsoleMode(getConout(), &mode)) {
fprintf(stderr, "error: GetConsoleMode failed (is stdout a console?)\n");
exit(1);
}
return mode;
}
static void setConsoleMode(DWORD mode) {
if (!SetConsoleMode(getConout(), mode)) {
fprintf(stderr, "error: SetConsoleMode failed (is stdout a console?)\n");
exit(1);
}
}
static long parseInt(const std::string &s) {
errno = 0;
char *endptr = nullptr;
long result = strtol(s.c_str(), &endptr, 0);
if (errno != 0 || !endptr || *endptr != '\0') {
fprintf(stderr, "error: could not parse integral argument '%s'\n", s.c_str());
exit(1);
}
return result;
}
static void usage() {
printf("Usage: ConoutMode [verb] [options]\n");
printf("Verbs:\n");
printf(" [info] Dumps info about mode flags.\n");
printf(" get Prints the mode DWORD.\n");
printf(" set VALUE Sets the mode to VALUE, which can be decimal, hex, or octal.\n");
printf(" set VALUE MASK\n");
printf(" Same as `set VALUE`, but only alters the bits in MASK.\n");
exit(1);
}
struct {
const char *name;
DWORD value;
} kOutputFlags[] = {
"ENABLE_PROCESSED_OUTPUT", ENABLE_PROCESSED_OUTPUT, // 0x0001
"ENABLE_WRAP_AT_EOL_OUTPUT", ENABLE_WRAP_AT_EOL_OUTPUT, // 0x0002
"ENABLE_VIRTUAL_TERMINAL_PROCESSING", 0x0004/*ENABLE_VIRTUAL_TERMINAL_PROCESSING*/, // 0x0004
"DISABLE_NEWLINE_AUTO_RETURN", 0x0008/*DISABLE_NEWLINE_AUTO_RETURN*/, // 0x0008
"ENABLE_LVB_GRID_WORLDWIDE", 0x0010/*ENABLE_LVB_GRID_WORLDWIDE*/, //0x0010
};
int main(int argc, char *argv[]) {
std::vector<std::string> args;
for (size_t i = 1; i < argc; ++i) {
args.push_back(argv[i]);
}
if (args.empty() || args.size() == 1 && args[0] == "info") {
DWORD mode = getConsoleMode();
printf("mode: 0x%lx\n", mode);
for (const auto &flag : kOutputFlags) {
printf("%-34s 0x%04lx %s\n", flag.name, flag.value, flag.value & mode ? "ON" : "off");
mode &= ~flag.value;
}
for (int i = 0; i < 32; ++i) {
if (mode & (1u << i)) {
printf("Unrecognized flag: %04x\n", (1u << i));
}
}
return 0;
}
const auto verb = args[0];
if (verb == "set") {
if (args.size() == 2) {
const DWORD newMode = parseInt(args[1]);
setConsoleMode(newMode);
} else if (args.size() == 3) {
const DWORD mode = parseInt(args[1]);
const DWORD mask = parseInt(args[2]);
const int newMode = (getConsoleMode() & ~mask) | (mode & mask);
setConsoleMode(newMode);
} else {
usage();
}
} else if (verb == "get") {
if (args.size() != 1) {
usage();
}
printf("0x%lx\n", getConsoleMode());
} else {
usage();
}
return 0;
}
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