int stdcall YW_NTAG_Read
(
int ReaderID,
int StartPage,
int *DataLen,
unsigned char *pData
)
|
參數(shù) |
類型 |
方向 |
含義 |
|
ReaderID |
int |
IN |
所要獲取的設(shè)備標示ID，范圍0x0000-0xFFFF，如果未知，則ReaderID=0 |
|
StartPage |
int |
IN |
要讀取的開始頁 |
|
DataLen |
int* |
OUT |
讀取得數(shù)據(jù)的字節(jié)數(shù) |
|
pData |
unsigned char* |
OUT |
讀取的數(shù)據(jù)，此處一般是讀取4個數(shù)據(jù)頁，即從開始頁開始的連續(xù)的4個頁，共16字節(jié)。 |
返 回 值：大于0為命令發(fā)送成功，<=0為命令發(fā)送失敗
int stdcall YW_NTag_Read(int ReaderID,int StartPage, int *DataLen, unsigned char *pData)
function YW_NTag_Read(ReaderID: Integer; StartPage: Integer;var DataLen: Integer;pData: PChar): Integer;stdcall;external YOWOREADERDLL;
Public Declare Function YW_NTag_Read Lib "YW60x.dll" (ByVal ReaderID As Long, ByVal StartPage As Long, ByRef DataLen As Long, ByRef pData As Byte) As Long
public int YW_NTag_Read(int ReaderID,int StartPage, Pointer DataLen, Pointer pData)
{
int ret;
try
{
JNative fuc = new JNative("YW60x.dll", "YW_NTag_Read");
fuc.setRetVal(Type.INT);
fuc.setParameter(0, ReaderID);
fuc.setParameter(1, StartPage);
fuc.setParameter(2, DataLen);
fuc.setParameter(3, pData);
fuc.invoke();
ret = fuc.getRetValAsInt();
}
catch(NativeException e)
{
ret = -1;
}
catch(IllegalAccessException e)
{
ret = -2;
}
return ret;
}
[DllImport("YW60x.dll")]
public static extern int YW_NTag_Read(int ReaderID,int StartPage, ref int DataLen, byte[] pData);
public FUNCTION long YW_NTag_Read (long lReaderID , long StartPage , ref long DataLen , ref char pData[]) library "YW60x.dll"
