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