vb.net语法转成 c# 怎么转呢是c++ 写好的Dll 如何用c#来调用呢

亲亲玲 2011-07-29 02:55:05

Public Declare Function InitComm Lib "termb.dll" (ByVal port As Integer) As Integer
Public Declare Function Authenticate Lib "termb.dll" () As Integer
Public Declare Function Read_Content Lib "termb.dll" (ByVal active As Integer) As Integer
Public Declare Function CloseComm Lib "termb.dll" () As Integer

sdtapi.dll
IDCard.ll

谢谢各位

...全文

61 6 打赏收藏转发到动态举报

写回复

用AI写文章

6 条回复

切换为时间正序

请发表友善的回复…

发表回复

mp6che 2011-08-17

打赏
举报

有工具
[DllImport("termb.dll", EntryPoint = "InitCommExt")]
public static extern int InitCommExt();

[DllImport("termb.dll", EntryPoint = "InitComm")]
public static extern int InitComm(int port);

[DllImport("termb.dll", EntryPoint = "Authenticate")]
public static extern int Authenticate();

[DllImport("termb.dll", EntryPoint = "Read_Content")]
public static extern int Read_Content(int Active);

[DllImport("termb.dll", EntryPoint = "Read_Content_Path")]
public static extern int Read_Content_Path(string cPath, int Active);

[DllImport("termb.dll", EntryPoint = "CloseComm")]
public static extern int CloseComm();

亲亲玲 2011-07-29

打赏
举报

isjoe 你好！

能帮我一下吗
谢谢

isjoe 2011-07-29

打赏
举报

下载一个Reflector，打开vb的DLL或者exe，拷贝出来就OK了。或者直接导出C#版本的项目来。

调用C++的DLL，类似下面：
/// <summary>
///
/// </summary>
/// <param name="hwnd"></param>
/// <returns></returns>
[DllImport("user32.dll", EntryPoint = "SetForegroundWindow")]
public static extern IntPtr SetForegroundWindow(IntPtr hwnd);

/// <summary>
/// 检测网络连接状态
/// </summary>
/// <param name="connectionDescription">连接说明</param>
/// <param name="reservedValue">保留值</param>
/// <returns>为true则连接正常</returns>
[DllImport("wininet.dll")]
public extern static bool InternetGetConnectedState(out int connectionDescription,int reservedValue);

/// <summary>
/// 枚举窗口的回调函数
/// </summary>
/// <param name="hwnd"></param>
/// <param name="lParam"></param>
/// <returns></returns>
public delegate bool CallBack(IntPtr hwnd, int lParam);

/// <summary>
/// 枚举当前桌面窗口
/// </summary>
/// <param name="cb"></param>
/// <param name="lParam"></param>
/// <returns></returns>
　　 [DllImport("user32")]
public static extern int EnumWindows(CallBack cb, int lParam);

亲亲玲 2011-07-29