gecko-dev/widget/windows/WindowsConsole.cpp

34 строки
1.1 KiB
C++

/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "WindowsConsole.h"
#include <windows.h>
#include <fcntl.h>
namespace mozilla {
// This code attaches the process to the appropriate console.
void UseParentConsole() {
if (AttachConsole(ATTACH_PARENT_PROCESS)) {
// Redirect the standard streams to the existing console, but
// only if they haven't been redirected to a valid file.
// Visual Studio's _fileno() returns -2 for the standard
// streams if they aren't associated with an output stream.
if (_fileno(stdout) == -2) {
freopen("CONOUT$", "w", stdout);
}
// There is no CONERR$, so use CONOUT$ for stderr as well.
if (_fileno(stderr) == -2) {
freopen("CONOUT$", "w", stderr);
}
if (_fileno(stdin) == -2) {
freopen("CONIN$", "r", stdin);
}
}
}
} // namespace mozilla