private bool GetFrCardNo(ref string CardNo)
{
int vnRet = 0;
bool ret = false;
byte[] RECardNo = new byte[256];
for (int i = 0; i < ObjFpReader.PISFP_MAX_DEVICE_COUNTS; i++)
{
byte[] vstrDeviceDescription = new byte[1024];
byte[] vstrDevId = new byte[1024];
if (ObjFpReader.pisEnumerateDevice(i, vstrDevId, vstrDeviceDescription) == ObjFpReader.PISFP_OK)
{
devIdList.Add(Encoding.Default.GetString(vstrDevId, 0, vstrDevId.Length));
}
}
if (devIdList.Count > 0)
{
Exit();
vnRet = ObjFpReader.pisCreateContext(ref contextId);
vnRet = ObjFpReader.pisOpenDevice(contextId, devIdList[0]);
if (vnRet != 0)
{
Exit();
return(ret);
}
// vnRet = ObjFpReader.pisGetCardNumber(contextId, RECardNo );
//控制设备灯
RECardNo = new byte[256];
Application.DoEvents();
vnRet = ObjFpReader.pisGetCardNumber(contextId, RECardNo);
if (vnRet == ObjFpReader.PISFP_GET_CARD)
{
System.Threading.Thread.Sleep(10);
}
if (vnRet == 0)
{
CardNo = Pub.GetWGCardNo(RECardNo);
ret = true;
}
Exit();
}
return(ret);
}