我一直对此很感兴趣,所以我按照Bo Persson的答案中提供的链接,并组装了一些代码。要使用它,只需在main
中定义一个UseConsole
对象。
UseConsole.h:
class UseConsole
{
public:
UseConsole();
~UseConsole();
private:
bool m_good;
};
UseConsole.cpp:
#include <windows.h>
#include <stdio.h>
#include <fcntl.h>
#include <io.h>
#include <iostream>
#include <fstream>
#include "UseConsole.h"
void RedirectIOToConsole()
{
int hConHandle;
long lStdHandle;
FILE *fp;
lStdHandle = (long)GetStdHandle(STD_OUTPUT_HANDLE);
hConHandle = _open_osfhandle(lStdHandle, _O_TEXT);
fp = _fdopen( hConHandle, "w" );
*stdout = *fp;
setvbuf( stdout, NULL, _IONBF, 0 );
lStdHandle = (long)GetStdHandle(STD_INPUT_HANDLE);
hConHandle = _open_osfhandle(lStdHandle, _O_TEXT);
fp = _fdopen( hConHandle, "r" );
*stdin = *fp;
setvbuf( stdin, NULL, _IONBF, 0 );
lStdHandle = (long)GetStdHandle(STD_ERROR_HANDLE);
hConHandle = _open_osfhandle(lStdHandle, _O_TEXT);
fp = _fdopen( hConHandle, "w" );
*stderr = *fp;
setvbuf( stderr, NULL, _IONBF, 0 );
std::ios::sync_with_stdio();
}
UseConsole::UseConsole()
{
m_good = !!AttachConsole(ATTACH_PARENT_PROCESS);
if (m_good)
RedirectIOToConsole();
}
UseConsole::~UseConsole()
{
if (m_good)
FreeConsole();
}