There's no way to do what you want in C#. You could, however, write a wrapper in MC++ and then use the wrapper from your C# code.
-----Original Message----- From: Eric Meek [mailto:[EMAIL PROTECTED] Sent: Tuesday, March 18, 2003 6:17 PM To: [EMAIL PROTECTED] Subject: [ADVANCED-DOTNET] Prototyping Unmanaged C function in C# Hello, Currently I am working on a project where we are trying to call to an unmanaged function using DllImport in C#. The function prototype in C is: int netsl(char *, ...); We have tried using MarshalAs attribute. However, it only works when the C# prototype specifies exactly what we are passing to the unmanaged function. e.g. public static extern int netsl(string s, params [MarshalAs(UnmanagedType.LPArray)] Int32); Using this method, we'll have to make a C# prototype for each case. Since this is unacceptable, we have been researching other methods such as gchandle, pinned reference and __arglist. Is there a "normal" or usual method of structuring the corresponding C# method prototype for the DllImport of the C prototype above? Thanks in advanced, Eric =================================== This list is hosted by DevelopMentor(r) http://www.develop.com You may be interested in Guerrilla .NET, 24 March 2003, in London and Boston http://www.develop.com/courses/gdotnet View archives and manage your subscription(s) at http://discuss.develop.com =================================== This list is hosted by DevelopMentorŪ http://www.develop.com You may be interested in Guerrilla .NET, 24 March 2003, in London and Boston http://www.develop.com/courses/gdotnet View archives and manage your subscription(s) at http://discuss.develop.com