MAMEWorld Forums - Programming - Re: .Net Question, How to reference a dll with different names

better late than never I guess...

here are some clues as to how to do what you want.

public delegate Int32 WSAStartupDelegate( UInt16 wVersionRequired, byte[] lpWSAData );
public static WSAStartupDelegate WSAStartup;

public class Win32
{
[DllImport( "ws2_32.dll" )]
public static extern Int32 WSAStartup( UInt16 wVersionRequired, byte[] lpWSAData );
}

public class WinCE
{
[DllImport( "ws2.dll" )]
public static extern Int32 WSAStartup( UInt16 wVersionRequired, byte[] lpWSAData );
}

then do either:

WSAStartup = WinCE.WSAStartup;

or

WSAStartup = Win32.WSAStartup;

depending on which one you want. Then do WSAStartup() and it will call the relevant code.

or you can just decide whether to call WinCE.WSAStartup() or Win32.WSAStartup() at runtime. I find it better to not polute the code, but it's up to you.

Without the classes, this is how to have the same function in different dll's.

[DllImport("coredll.dll", EntryPoint="PeekMessage", SetLastError=true)]
private static extern bool PeekMessageCE(out MSG lpMsg, IntPtr hWnd, uint wMsgFilterMin, uint wMsgFilterMax, uint wRemoveMsg);

[DllImport("User32.dll", CharSet=CharSet.Auto, EntryPoint="PeekMessage")]
private static extern bool PeekMessageDT(out MSG msg, IntPtr hWnd, uint messageFilterMin, uint messageFilterMax, uint flags);

You then call either PeekMessageCE or PeekMessageDT.

smf

Edited by smf (02/28/07 05:23 PM)