jna调用bvcsp传参问题 - mobile CCTV,mobile surveillance,police body worn cameras

public interface VoiceLibrary extends StdCallLibrary {
VoiceLibrary INSTANCE = Native.load(
System.getProperty("user.dir")+"\\src\\main\\resources\\voice\\BVCSP_x64.dll", VoiceLibrary.class);
int BVCSP_Initialize(int bAutoHandle, int iTCPDataPort);
int BVCSP_Login(PointerByReference phSession, BVCSP_SessionParam pParam);
}

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public static void main(String[] args){
int result;
result= VoiceLibrary.INSTANCE.BVCSP_Initialize(1,0);
System.out.println(result);
PointerByReference pHSession=new PointerByReference();
Pointer hSession = pHSession.getValue();
BVCSP_SessionParam.ByReference sessionParam = new BVCSP_SessionParam.ByReference();
sessionParam.iSize = 500;
sessionParam.iTimeOut = 8000;
sessionParam.szClientID = "towercloud".getBytes();
sessionParam.szServerAddr = "192.168.1.173".getBytes();
sessionParam.szUserName = "admin".getBytes();
sessionParam.szPassword = "123456".getBytes();
sessionParam.szUserAgent = "bvcsp_towercloud".getBytes();
sessionParam.iClientType = 16;
sessionParam.iServerPort = 9701;
sessionParam.iCmdProtoType = 0;
sessionParam.OnEvent = new LoginCallbackFunction.OnEventImpl();
sessionParam.OnCommand = new LoginCallbackFunction.OnCommandImpl();
sessionParam.OnNotify = new LoginCallbackFunction.OnNotifyImpl();
sessionParam.OnDialogCmd = new LoginCallbackFunction.OnDialogCmdImpl();
sessionParam.stEntityInfo.pPUInfo.szName = "fang_CU".getBytes();
for (int i = 0; i < 4; ++i){
sessionParam.stEntityInfo.pChannelList[i] = new BVCU_PUCFG_ChannelInfo.ByReference();
sessionParam.stEntityInfo.pChannelList[i].iChannelIndex = i;
sessionParam.stEntityInfo.pChannelList[i].iMediaDir = 10;
}
sessionParam.stEntityInfo.iChannelCount = 4;
result=VoiceLibrary.INSTANCE.BVCSP_Login(pHSession,sessionParam);
System.out.println(result);
}

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public class BVCSP_SessionParam extends Structure {
// 本结构体的大小，分配者应初始化为sizeof(BVCSP_ServerParam)
public int iSize;
// 用户自定义数据。通常用于回调通知
public Pointer pUserData;
// 用户类型。见 BVCSP_CLIENT_TYPE_*
public int iClientType;
// 一个通道能够同时被打开几路流。 iClientType为PU时有效，0：不限制个数。库内最大支持64
public int iMaxChannelOpenCount;
/* 登录实体的具体信息
注意：这里BVCSP_EntityInfo中的指针，库内会根据iClientType类型深拷贝。 */
public BVCSP_EntityInfo.ByValue stEntityInfo = new BVCSP_EntityInfo.ByValue();
// Server地址，只支持IP地址，如127.0.0.1，域名需上层转换为IP地址
public byte[] szServerAddr = new byte[128];
// Server端口号
public int iServerPort;
public byte[] szClientID = new byte[32];
// 应用程序名称。该名称被Server端记录到Log中
public byte[] szUserAgent = new byte[32];
// 登录用户名
public byte[] szUserName = new byte[32];
// 登录密码
public byte[] szPassword = new byte[64];
// Ukey ID。从UKey中获得的UKeyID。登录验证中使用。如果为空，表示没有UKey
public byte[] szUKeyID = new byte[32];
// Ukey 授权码。从UKey中获得的验证授权码。如果为空，表示没有UKey授权码
public byte[] szUkeyCode = new byte[64];
/* 与Server之间命令通道使用的传输层协议类型，参见BVCU_PROTOTYPE_*。
目前仅支持 UDP 和 TCP */
public int iCmdProtoType;
// 命令超过iTimeOut未收到回响则认为失败，单位毫秒。必须>0 默认：30*1000毫秒
public int iTimeOut;
public LoginCallbackFunction.OnEvent OnEvent;
public LoginCallbackFunction.OnCommand OnCommand;
public LoginCallbackFunction.OnNotify OnNotify;
public LoginCallbackFunction.OnDialogCmd OnDialogCmd;
// 保留，必须初始化为0
public int iReserved[] = new int[4];
@Override
protected List<String> getFieldOrder() {
return Arrays.asList("iSize","pUserData","iClientType","iMaxChannelOpenCount","stEntityInfo","szServerAddr",
"iServerPort","szClientID","szUserAgent","szUserName","szPassword","szUKeyID","szUkeyCode",
"iCmdProtoType","iTimeOut","OnEvent","OnCommand","OnNotify","OnDialogCmd","iReserved");
}
public static class ByReference extends BVCSP_SessionParam implements Structure.ByReference {}
public static class ByValue extends BVCSP_SessionParam implements Structure.ByValue {}
}

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