#include <windows.h>

int APIENTRY WinMain(HINSTANCE hInstance,
                     HINSTANCE hPrevInstance,
                     LPSTR     lpCmdLine,
                     int       nCmdShow)
{
    // TODO: Place code here.
    char buffer[1000];
    long i = 0;
    DWORD tmp;
    DWORD DriveType[28];

    for (i=0;i<28;i++)
        DriveType[i] = 0;

    while (true)
    {
        GetLogicalDriveStrings(1000,buffer);
        for (i=2;i<=26;i+=4)
        {
            tmp = GetDriveType(&buffer[i * 4]);
            if (tmp != DriveType[i])
            {
                DriveType[i] = tmp;
                if (tmp == DRIVE_REMOVABLE)
                {
                    MessageBox(NULL,"USB da duoc cam vao may !","Thong bao",MB_OK);
                }
            }
        }

        SleepEx(500,1);
    }

    return 0;
}