/// <summary>
/// 从感应区内所选定卡的指定扇区（0~15）的指定数据块（0~3）读取数据（16字节或者6字节（密码）十六进制）。函数返回值，-1表示验证密码失败，0表示操作成功，其他表示读失败
/// </summary>
/// <param name="nSector">指定扇区</param>
/// <param name="nDBNum">指定扇区中的指定DB块</param>
/// <param name="strRead">读取的数据</param>
/// <returns>函数返回值，-1表示验证密码失败，0表示操作成功，其他表示读失败</returns>
public override int ReadDataFromCard(Int16 nSector, Int16 nDBNum, out string strRead)
{
strRead = string.Empty;
int i = 0;
byte[] data = new byte[16];
byte[] buff = new byte[32];
for (i = 0; i < 16; i++)
{
data[i] = 0;
}
for (i = 0; i < 32; i++)
{
buff[i] = 0;
}
int nReturn = 1;
int blocknum = nSector * 4 + nDBNum;
if (m_bIs64BitOperatingSystem)
{
//64位系统
if (USB_SWIPER == m_nComID)
{
nReturn = CQTCommonForUsb.rf_read(m_nEquipDesc, blocknum, data);
}
else
{
nReturn = CQTCommon.rf_read(m_nEquipDesc, blocknum, data);
}
}
else
{
//其他位系统
if (USB_SWIPER == m_nComID)
{
nReturn = CQTCommonForUsb.rf_read(m_nEquipDesc, blocknum, data);
}
else
{
nReturn = CQTCommon.rf_read(m_nEquipDesc, blocknum, data);
}
}
if (nReturn == 0)
{
if (m_bIs64BitOperatingSystem)
{
//64位系统
if (USB_SWIPER == m_nComID)
{
CQTCommonForUsb.hex_a(data, buff, 16);
}
else
{
CQTCommon.hex_a(data, buff, 16);
}
}
else
{
//其他位系统
if (USB_SWIPER == m_nComID)
{
CQTCommonForUsb.hex_a(data, buff, 16);
}
else
{
CQTCommon.hex_a(data, buff, 16);
}
}
strRead = System.Text.Encoding.ASCII.GetString(buff);
}
return(nReturn);
}
