C++中在程序中重启自己的一种方法

　　在工程.cpp文件(Project1.cpp)中加入：

#include "Unit1.h"
WINAPI WinMain(HINSTANCE, HINSTANCE, LPSTR, int)
{
    try
    {
        Application->Initialize();
        Application->CreateForm(__classid(TfrmMain), &frmMain);
        Application->Run();
    }
    catch (Exception &exception)
    {
        Application->ShowException(&exception);
    }
    catch (...)
    {
        try
        {
            throw Exception("");
        }
        catch (Exception &exception)
        {
            Application->ShowException(&exception);
        }
    }

    if(g_bIsRunAgain)
    {
        AnsiString strPath;
        STARTUPINFO StartInfo;
        PROCESS_INFORMATION procStrUCt;
        memset(&StartInfo, 0, sizeof(STARTUPINFO));
        StartInfo.cb = sizeof(STARTUPINFO);
        strPath = Application->ExeName;
        if(!::CreateProcess(
                (LPCTSTR) strPath.c_str(),
                NULL,
                NULL,
                NULL,
                FALSE,
                NORMAL_PRIORITY_CLASS,
                NULL,
                NULL,
                &StartInfo,
                &procStruct))
            return 0;
    }
    return 0;
}


主窗口的单元头文件(Unit1.h)中加入：
extern bool g_bIsRunAgain;


主窗口的单元.cpp(Unit1.cpp)中加入：
bool g_bIsRunAgain = false;
//----------------------------------------------------------------------------
// 关闭程序
void __fastcall TfrmMain::BTnCloseClick(TObject *Sender)
{
     Close();
}
//----------------------------------------------------------------------------
// 重启应用程序
void __fastcall TfrmMain::btnReExcuteClick(TObject *Sender)
{
     g_bIsRunAgain = true;
     Close();
}