C#调用Cdll 结构体作参数该怎么传参数
C#调用Cdll 结构体作参数该如何传参数
C Dll函数：
typedef struct Param
{
char userName[User_NAME_MAX_SIZE];
char userPass[User_Pass_MAX_SIZE];
}Param;
USER_DLL_EXPORT int User_Login(
const struct Param *user_param);
请问：C#该如何调用？
------解决思路----------------------
------解决思路----------------------
2楼很完整了。
C Dll函数：
typedef struct Param
{
char userName[User_NAME_MAX_SIZE];
char userPass[User_Pass_MAX_SIZE];
}Param;
USER_DLL_EXPORT int User_Login(
const struct Param *user_param);
请问：C#该如何调用？
------解决思路----------------------
[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Ansi)]
class Param
{
[MarshalAs(UnmanagedType.ByValTStr, SizeConst = 20 /*User_NAME_MAX_SIZE*/)]
public string userName;
[MarshalAs(UnmanagedType.ByValTStr, SizeConst = 40 /*User_Pass_MAX_SIZE*/)]
public string userPass;
};
class Imports
{
[DllImport(dllPath, CallingConvention = CallingConvention.Cdecl)]
public static extern int User_Login(Param user_param);
}
class Program
{
public static int Login(string name, string password)
{
Param p = new Param()
{
userName = name,
userPass = password
};
return Imports.User_Login(p);
}
}
------解决思路----------------------
2楼很完整了。