cast from structure to int in C++ to C#

[Guest]

Hi, I'm new to C#. I have a C++ program and need to develop it in C# now.

In C++ Program:
typedef struct A_T {
char id[17];
DWORD status;
} AStruct

AStruct rcd;
SYSTEMTIME st;
DWORD dwSN;

In which the rcd and st contain data.
Then I use a dll function "Function" in the C++ Program like this:
Function((DWORD) &rcd, (DWORD) &st, (DWORD) &dwSN);
Just cast to DWORD, and then pass this 3 parameters to the function.

In C#, I write like this:
[StructLayout(LayoutKind.Sequential )]
public struct AStruct {
[MarshalAs(UnmanagedType.ByValTStr, SizeConst=17)] public string id;
public int status;
}

[StructLayoutAttribute(LayoutKind.Sequential)]
public struct SYSTEMTIME
{
public short year;
public short month;
public short dayOfWeek;
public short day;
public short hour;
public short minute;
public short second;
public short milliseconds;
}

But I do not have idea how to use the function in C#.
Can you help translate to C#?

Thanks
Grace

 

[Mohamoss]

Hi Grace
In c# function calling is the same as C++ also as c++ you can cast input
parameters using the brackets (type you want to cast to) object. Check this
link I think it may help you with c#

http://msdn.microsoft.com/msdnmag/issues/01/07/ctocsharp/default.aspx

Mohamed Mahfouz
MEA Developer Support Center
ITworx on behalf of Microsoft EMEA GTSC