unit1.cpp

<<C++Builder 6实用编程100例>>随书光盘

//---------------------------------------------------------------------------

#include <vcl.h>
#pragma hdrstop
#include <winuser.h>

#include "Unit1.h"
//---------------------------------------------------------------------------
#pragma package(smart_init)
#pragma resource "*.dfm"
TForm1 *Form1;
//---------------------------------------------------------------------------
__fastcall TForm1::TForm1(TComponent* Owner)
        : TForm(Owner)
{
}
//---------------------------------------------------------------------------
void __fastcall TForm1::FormCreate(TObject *Sender)
{
        ComboBox1->ItemIndex=1;
        Label2->Caption="结束会话并关闭 Windows。这样就可安全地关掉\n电源了。";
        flag=EWX_SHUTDOWN;
}
//---------------------------------------------------------------------------
void __fastcall TForm1::ComboBox1Change(TObject *Sender)
{
        switch(ComboBox1->ItemIndex)
        {
                case 0:
                        Label2->Caption="结束会话，在完全耗电的状态下运行计算机。";
                        flag=EWX_LOGOFF;
                        break;
                case 1:
                        Label2->Caption="结束会话并关闭 Windows。这样就可安全地关掉\n"
                                "电源了。";
                        flag=EWX_SHUTDOWN;
                        break;
                case 2:
                        Label2->Caption="结束会话，关闭 Windows，重新启动 Windows。";
                        flag=EWX_REBOOT;
                        break;
                case 3:
                        Label2->Caption="维护会话，计算机的数据仍然保存在内存中，以\n"
                                "低功耗运行。";
                        flag=EWX_FORCE;
                        break;
        }
}
//---------------------------------------------------------------------------
void __fastcall TForm1::Button1Click(TObject *Sender)
{
        ExitWindowsEx(flag,0);
}
//---------------------------------------------------------------------------
void __fastcall TForm1::Button2Click(TObject *Sender)
{
        Form1->Close();        
}
//---------------------------------------------------------------------------