You can't do this this way because in order to get at the EXPOSE'd interface, you'd have to loadlibrary the .dll which implements it. Since the client .dll and server .dll are already both loaded by the engine, you'd be looking at another instance of the .dll which wouldn't work for you.
If you are making a single player game, then you can punch a hole from client to server by sending the interface ptr through a cvar, usermessage, or CUserCmd data slot (since everything is in the same process space, you can probably get away with this in single player). It's a _huge_ hack to do this and won't work for multiplayer games or dedicated servers for obvious reasons. I think we might have a way for the engine to load a single "shared" .dll and provide the CreateInterfaceFn factory to both the client and game server .dlls, but that might not be in the SDK code line yet. The preferred method would be for the client to send network messages to your server, the server acts on those (invokes your test interface), and responds with network messages back to the client. It's a form of remote procedure call. You just have to assume arbitrary latency in getting return values or having the messages handled. Yahn -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Matt Young Sent: Thursday, April 05, 2007 10:31 PM To: [email protected] Subject: [hlcoders] Exposing Interfaces Hello all, After looking at all the interface documentation, I am still stuck. What I am trying to do is expose a custom interface located on the server to be accessed by the client, like the IVEngineServer. Here is the code I am attempting to get working (I stripped it down for readability). This code compiles but crashes during runtime. The overall purpose of this is to allow communication between the client and server, but if there is a better or more correct way of doing this, please let me know. Thanks a lot! In src/gameshared, ITestInterface.h #ifndef PB_ITEST_INTERFACE_H #define PB_ITEST_INTERFACE_H #include "cbase.h" #define ITEST_INTERFACE_NAME "TESTINTERFACE001" abstract_class ITestInterface { public: virtual bool Message(char* msg) = 0; }; #endif In src/dlls, TestInterface.h #ifndef TEST_INTERFACE_H #define TEST_INTERFACE_H #include "cbase.h" #include "ITestInterface.h" class TestInterface : public ITestInterface { public: TestInterface(){}; ~TestInterface(){}; //ITestInterface methods virtual bool Message(char* msg); }; static TestInterface* test_interface; EXPOSE_SINGLE_INTERFACE_GLOBALVAR(TestInterface, ITestInterface, ITEST_INTERFACE_NAME, test_interface); bool TestInterface::Message(char* msg) { Msg("The message, %s, was received\n.", msg); return true; } #endif In cdll_client_int.h, I extern the interface extern ITestInterface *test_interface; Then from within a class in src/cdll which should simply display the message "Yay!" test_interface->Message("Yay!"); _______________________________________________ To unsubscribe, edit your list preferences, or view the list archives, please visit: http://list.valvesoftware.com/mailman/listinfo/hlcoders _______________________________________________ To unsubscribe, edit your list preferences, or view the list archives, please visit: http://list.valvesoftware.com/mailman/listinfo/hlcoders
