unit1.cpp

来自「本书《C++Builder与WindowsAPI经典范例》附含配套光盘包括132」· C++ 代码 · 共 29 行

//---------------------------------------------------------------------------
#include <vcl.h>
#pragma hdrstop

#include "Unit1.h"
//---------------------------------------------------------------------------
#pragma package(smart_init)
#pragma resource "*.dfm"
TForm1 *Form1;
//---------------------------------------------------------------------------
__fastcall TForm1::TForm1(TComponent* Owner)
    : TForm(Owner)
{
//默认按钮状态
Button1->Enabled = true;
Button2->Enabled = false;
//预先关闭计时器
Timer1->Enabled = false;
Timer1->Interval = 100;
}
//---------------------------------------------------------------------------

void __fastcall TForm1::Button1Click(TObject *Sender)
{
//启动监视C:\temp目录中的文件异动
hChange = ::FindFirstChangeNotification("C:\\temp",
                                        true,//包括子目录
                                        FILE_NOTIFY_CHANGE_FILE_NAME);
//若此目录不存在