我正在查看sourceforge的示例項目,以鏈接到TSAPI(非TAPI)電話系統 - http://tsapi.sourceforge.net/。.Net 4導致DLLImport函數返回失敗代碼,.Net 2,3或3.5不是
我的開發環境是32位Windows XP,並且該項目設置爲x86。
這工作正常提供運行對.Net 2,但我需要運行.Net 4.當我更改框架並運行第1個函數返回-1表示失敗。
函數定義爲:
[DllImport("csta32.dll")]
public static extern int acsOpenStream(ref UInt32 acsHandle, int invokeIDType, UInt32 invokeID, int streamType, char[] serverID, char[] loginID, char[] passwd, char[] applicationName, int acsLevelReq, char[] apiVer, ushort sendQSize, ushort sendExtraBufs, ushort recvQSize, ushort recvExtraBufs, ref PrivateData_t priv);
C#代碼(從示例項目中提取)用於調用此功能:
// The public method to open the ACS stream
public bool open(string strLoginId, string strPasswd, string strServerId)
{
// Convert the parameters to character arrays
char[] serverId = strServerId.ToCharArray();
char[] loginId = strLoginId.ToCharArray();
char[] passwd = strPasswd.ToCharArray();
// Define the initial set of variables used for opening the ACS Stream
int invokeIdType = 1;
UInt32 invokeId = 0;
int streamType = 1;
char[] appName = "Mojo".ToCharArray();
int acsLevelReq = 1;
char[] apiVer = "TS1-2".ToCharArray();
ushort sendQSize = 0;
ushort sendExtraBufs = 0;
ushort recvQSize = 0;
ushort recvExtraBufs = 0;
// Define the mandatory (but unused) private data structure
Csta.PrivateData_t privData = new Csta.PrivateData_t();
privData.vendor = "MERLIN ".ToCharArray();
privData.length = 4;
privData.data = "N".ToCharArray();
// Define the event buffer pointer that gets data back from the TServer
ushort numEvents = 0;
Csta.EventBuf_t eventBuf = new Csta.EventBuf_t();
ushort eventBufSize = (ushort)Csta.CSTA_MAX_HEAP;
// Open the ACS stream
try
{
int openStream = Csta.acsOpenStream(ref acsHandle, invokeIdType, invokeId, streamType, serverId, loginId, passwd, appName, acsLevelReq, apiVer, sendQSize, sendExtraBufs, recvQSize, recvExtraBufs, ref privData);
A C++示例應用程序也是在該函數調用中提供是:
m_nRetCode = acsOpenStream(&m_lAcsHandle // Handle for ACS Stream
, APP_GEN_ID // APP_GEN_ID indicates Application generated invokeID's
, (InvokeID_t)m_ulInvokeID // By default 1
, ST_CSTA
, (ServerID_t *)(serverID) // AE Server Name
, (LoginID_t *)(loginID) // CTI LoginID
, (Passwd_t *)(password) // CTI LoginID password
, (AppName_t *)"TSAPI_AgentView"
, ACS_LEVEL1
, (Version_t *) "TS1-2" // private Data version in use 8 in our case
, 10
, 5
, 50
, 5
, (PrivateData_t *)&m_stPrivateData); // private Data.
如果我將DLLImport更改爲
[DllImport("csta32.dll", CallingConvention=CallingConvention.Cdecl)]
public static extern int acsOpenStream(ref UInt32 acsHandle, int invokeIDType, UInt32 invokeID, int streamType, char[] serverID, char[] loginID, char[] passwd, char[] applicationName, int acsLevelReq, char[] apiVer, ushort sendQSize, ushort sendExtraBufs, ushort recvQSize, ushort recvExtraBufs, ref PrivateData_t priv);
我得到的運行時錯誤
檢測PInvokeStackImbalance 消息:對PInvoke的功能 '!魔CSTA :: acsOpenStream' 呼叫具有不平衡堆棧。這很可能是因爲託管的PInvoke簽名與非託管目標籤名不匹配。檢查PInvoke簽名的調用約定和參數是否與目標非託管簽名相匹配。
的Avaya不提供頭文件 - 文件表示該功能的定義是:
RetCode_t acsOpenStream(
ACSHandle_t *acsHandle, /* RETURN */
InvokeIDType_t invokeIDType, /* INPUT */
InvokeID_t invokeID, /* INPUT */
StreamType_t streamType, /* INPUT */
ServerID_t *serverID, /* INPUT */
LoginID_t *loginID, /* INPUT */
Passwd_t *passwd, /* INPUT */
AppName_t *applicationName, /* INPUT */
Level_t acsLevelReq /* INPUT */
Version_t *apiVer, /* INPUT */
unsigned short sendQSize, /* INPUT */
unsigned short sendExtraBufs, /* INPUT */
unsigned short recvQSize, /* INPUT */
unsigned short recvExtraBufs /* INPUT */
PrivateData_t *privateData); /* INPUT */
你運行64位機嗎? – Tigran 2012-04-20 21:52:59
char []看起來不對。應該是確定的字符串。無論如何,你需要顯示C++聲明和C#調用代碼。 – 2012-04-20 21:57:39
第23個參數的值錯誤。 – 2012-04-20 22:18:26