Обнаружение USB устройств с последующим их безопасным извлечением

//---------------------------------------------------------------------------
 
#include <vcl.h>
#include <windows.h>
#pragma hdrstop
#include <stdio.h>
#include <cstring.h>
#include "kiosk_src.h"
//---------------------------------------------------------------------------
#pragma package(smart_init)
#pragma resource "*.dfm"
TForm1 *Form1;
using namespace std;
using namespace System;
//---------------------------------------------------------------------------
__fastcall TForm1::TForm1(TComponent* Owner)
    : TForm(Owner)
{
}
//---------------------------------------------------------------------------
void __fastcall TForm1::Button1Click(TObject *Sender)
{  char szBuffer[256];
 
        GetLogicalDriveStrings(256, szBuffer);
        char * pch = szBuffer;
        while (*pch) {
         Memo1->Lines->Text = pch;
      pch = &pch[strlen(pch) + 1];
   }
     if (GetDriveType("G:")==DRIVE_REMOVABLE) {ShowMessage("OK");}
 
}

LRESULT CRmv_guardDlg::WindowProc(UINT message, WPARAM wParam, LPARAM lParam) 
{
    // TODO: Add your specialized code here and/or call the base class
    switch(message){
    case WM_DEVICECHANGE:
        if ( DBT_DEVICEARRIVAL == wParam || DBT_DEVICEREMOVECOMPLETE == wParam ) 
            UpdateDevice((PDEV_BROADCAST_HDR)lParam, wParam);
        break;

GetLogicalDriveStrings

SendMessage(WM_DEVICECHANGE,DBT_DEVICEREMOVECOMPLETE,NULL)

//---------------------------------------------------------------------------
 
#include <vcl.h>
#include <windows.h>
#pragma hdrstop
#include <iostream.h>
#include<stdio.h>
#include <cstring.h>
#include <time.h>
#include <setupapi.h>
#include "kiosk_src.h"
//---------------------------------------------------------------------------
#pragma package(smart_init)
#pragma resource "*.dfm"
TForm1 *Form1;
using namespace std;
using namespace System;
 
//---------------------------------------------------------------------------
__fastcall TForm1::TForm1(TComponent* Owner)
    : TForm(Owner)
{
}
//---------------------------------------------------------------------------
void __fastcall TForm1::Button1Click(TObject *Sender)
{
char szBuffer[256];
 char fName[100];
 HANDLE hF;
 
        GetLogicalDriveStrings(256, szBuffer);
        char * pch = szBuffer;
        while (*pch) {
        if (GetDriveType(pch)==DRIVE_REMOVABLE) {ListBox1->Items->Add(pch); strcpy(fName,pch);}
         Memo1->Lines->Add(pch);
      pch = &pch[strlen(pch) + 1];
   }
      hF = CreateFile(fName,GENERIC_READ | GENERIC_WRITE,0,NULL,OPEN_EXISTING,0,NULL);
if(hF==INVALID_HANDLE_VALUE) MessageBox(NULL, TEXT("Нельзя открыть файл!"), TEXT("KIOSK"), 0);
 
 
    }

if(CopyFile(sPath + "\\test.txt",pRmvPath,false))