GUI程序控制臺輸出調試信息

#pragma once
#include <windows.h>
#include <stdio.h>
#include <iostream>

class CConsoleDebug
{
public:
    CConsoleDebug(SHORT nWidth = 30, SHORT nHeight = 3000): m_pFile(NULL)
    {
#ifdef _DEBUG
        AllocConsole();
        freopen_s(&m_pFile, "CONOUT$", "w", stdout);
        HANDLE hCon = GetStdHandle(STD_OUTPUT_HANDLE);
        COORD   size;
        size.X = nWidth;
        size.Y = nHeight;
        ::SetConsoleScreenBufferSize(hCon, size);
        std::ios_base::sync_with_stdio();
#endif
    }

    virtual ~CConsoleDebug()
    {
#ifdef _DEBUG
        fclose(m_pFile);
        m_pFile = NULL;
        FreeConsole();
#endif
    }
private:
    FILE* m_pFile;
};