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Unit1.cpp：源码内容

							//---------------------------------------------------------------------------
#include <vcl.h>
#include <registry.hpp>
#pragma hdrstop
#include "Unit1.h"
//---------------------------------------------------------------------------
#pragma package(smart_init)
#pragma resource "*.dfm"
TForm1 *Form1;
//---------------------------------------------------------------------------
__fastcall TForm1::TForm1(TComponent* Owner)
        : TForm(Owner)
{
}
//---------------------------------------------------------------------------
void __fastcall TForm1::Button1Click(TObject *Sender)
{
  char buff[MAX_PATH];
//获取Windows目录
  GetWindowsDirectory(buff,MAX_PATH);
  Edit1->Text=buff;
//获取Windows的系统目录
  GetSystemDirectory(buff,MAX_PATH);
  Edit2->Text=buff;
//获取Windows的临时目录
  GetTempPath(MAX_PATH,buff);
  Edit3->Text=buff;
}
//---------------------------------------------------------------------------
void __fastcall TForm1::Button2Click(TObject *Sender)
{
  TRegistry *rg;
  rg=new TRegistry();
  rg->RootKey=HKEY_LOCAL_MACHINE;
  rg->OpenKey("\Software\Microsoft\Windows\CurrentVersion",False);
  Edit1->Text=rg->ReadString("ProgramFilesDir");
  Edit2->Text=rg->ReadString("CommonFilesDir");
  rg->CloseKey();
  rg->Free();
}
//---------------------------------------------------------------------------

						