自己解决了
现在分享一下，我的全部代码如下：
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Navigation;
using System.Windows.Shapes;
using System.Runtime.InteropServices;
namespace NetMoniterWPFApp
{
/// <summary>
/// MainWindow.xaml 的交互逻辑
/// </summary>
public partial class MainWindow : Window
{
private const int VMC_ERR_SUCCESS = 0;
public MainWindow()
{
InitializeComponent();
}
private void button1_Click(object sender, RoutedEventArgs e)
{
getReturn();
}
private int GetSum(int a, int b)
{
return (a + b);
}
private void getReturn()
{
try
{
ClassVMC.VLVMC_CB vlvmc_cb = new ClassVMC.VLVMC_CB(OnVLVMCCallBack);
int vmc_handle = 0;
int lparam = 0;
int vmc_open_result = ClassVMC.VLVmcOpen(vlvmc_cb, lparam, ref vmc_handle);
if (vmc_open_result == VMC_ERR_SUCCESS)
{
VOCLINK_PARAM voice_link_param = new VOCLINK_PARAM();
voice_link_param.sVocIp = "192.168.4.44";
voice_link_param.nPort = 3000;
int voc_handle = 0;
int voc_connect_result = ClassVMC.VLVmcConnectVoc(vmc_handle, ref voice_link_param, ref voc_handle);
if (voc_connect_result == VMC_ERR_SUCCESS)
{
MessageBox.Show("Connect Voice Success.");
}
else
{
MessageBox.Show("Connect Voice fail.Result=" + voc_connect_result);
}
}
else
{
MessageBox.Show("Open VMC fail.Result=" + vmc_open_result);
}
}
catch (Exception ex)
{
MessageBox.Show(ex.ToString());
}
}
private void OnVLVMCCallBack(int voice_handle, ref VMCCB_EVT vmccb_evt, int lparam)
{
//MessageBox.Show(vmccb_evt.EvtCode.ToString());
}
private void button2_Click(object sender, RoutedEventArgs e)
{
int database = 0x1000;
int value = database + 2011;
MessageBox.Show(value.ToString());
}
}
class ClassSum
{
public delegate int d_SumAll(int a, int b);
public int SumAll(d_SumAll d_sumall)
{
return d_sumall(1, 2);
}
}
class ClassVMC
{
[UnmanagedFunctionPointer(CallingConvention.Cdecl)]
public delegate void VLVMC_CB(int voice_handle, ref VMCCB_EVT vmccb_evt, int lparam);
[DllImport("VLVmc.dll", EntryPoint = "VLVmcOpen")]
public static extern int VLVmcOpen(VLVMC_CB vlvmc_cb, int lparam, ref int vmc_handle);
[DllImport("VLVmc.dll", EntryPoint = "VLVmcClose")]
public static extern int VLVmcClose(int vmc_handle);
[DllImport("VLVmc.dll", EntryPoint = "VLVmcConnectVoc")]
public static extern int VLVmcConnectVoc(int vmc_handle, ref VOCLINK_PARAM voc_param, ref int voc_handle);
}
[System.Runtime.InteropServices.StructLayoutAttribute(System.Runtime.InteropServices.LayoutKind.Sequential, CharSet = System.Runtime.InteropServices.CharSet.Auto)]
public struct VOCLINK_PARAM
{
/// TCHAR[16]
[System.Runtime.InteropServices.MarshalAsAttribute(System.Runtime.InteropServices.UnmanagedType.ByValTStr, SizeConst = 16)]
public string sVocIp;
/// UINT->unsigned int
public uint nPort;
}
[System.Runtime.InteropServices.StructLayoutAttribute(System.Runtime.InteropServices.LayoutKind.Sequential)]
public struct VMCCB_EVT
{
/// UINT->unsigned int
public uint EvtCode;
/// UINT->unsigned int
public uint RetCode;
/// UINT->unsigned int
public uint Channel;
/// UINT->unsigned int
public uint uBufferLen;
/// void*
public System.IntPtr pBuffer;
}
}
说明：C#动态调用C++的DLL最烦人的莫过于数据类型和机构体的定义了，
C++类型到C#类型的转换在网上一搜就是一堆，在这里我就不多说了。
另外有一个非常有用的工具可帮助生成C#下对应的定义代码 winsiggen.exe
这里可以下载 http://download.csdn.net/detail/zyx_hawk/2258107
我原来的代码主要是少了控制回调函数的特性
[UnmanagedFunctionPointer(CallingConvention.Cdecl)]
