exports.cpp

vc++6.0开发网络典型应用实例导航 1. 本光盘提供了本书中所有的实例源程序文件。 2. 附录文件夹下是Winsock 函数参考以及错误码列表

/*
	so you're probably wondering what the hell all of this crap is for...
	simple, this program supports plugins. i don't expect people to make plugins or anything
	i simply put this in for my own purposes because i make plugins for my own uses
	if you really are interested there is an example plugin in netmsgdll.zip included in the
	zip file containing this source. i have no experience with this kind of thing so you could
	say that the plugin support is pretty uhhh... heh.
*/

#include "stdafx.h"
#include "ContactView.h"
#include "Netmsg.h"
#include "MainFrm.h"
#include "Conversation.h"
#include "ConversationThread.h"
#include <direct.h>

static CONTACT contact;

void LoadPlugins()
{
	CFileFind Find;
	BOOL bWorking;
	char cwd[1024];

	getcwd(cwd, sizeof(cwd));
	strcat(cwd, "\\*.dll");

	bWorking = Find.FindFile(cwd);

	while (bWorking)
	{
		T_INITPLUGIN init;
		HINSTANCE hIns;

		if (GetApp()->View->Plugins.GetCount() > 200) return; //too many damn plugins loaded

		bWorking = Find.FindNextFile();
		hIns = LoadLibrary(Find.GetFileName());

		if (!hIns) continue;

		init = (T_INITPLUGIN) GetProcAddress(hIns, "NMInitPlugin");

		if (!init) continue;

		if (!init(AfxGetInstanceHandle(), VER, GetApp()->View->Plugins.GetCount() + 1)) continue;

		PLUGIN *plugin = new PLUGIN;
		plugin->hHandle = hIns;
		plugin->TimerId = GetApp()->View->Plugins.GetCount() + 1;
		strcpy(plugin->filename, Find.GetFileName());

		GetApp()->View->Plugins.AddTail(plugin);
	}
}

CONTACT *MakeExtContact(CONTACT *extContact, CContact *Contact)
{
	strcpy(contact.awayreason, Contact->GetAwayReason());
	strcpy(contact.screenname, Contact->GetScreenName());
	strcpy(contact.ip, Contact->GetHostName().Get());
	contact.flags = Contact->Flags;
	memcpy(&contact.font, &Contact->uFont, sizeof(USERFONT));
	return &contact;
}

void PluginsNotifyContactsConnected()
{
	CList<PLUGIN *, PLUGIN *> &Plugins = GetApp()->View->Plugins;
	POSITION pos;
	pos = Plugins.GetHeadPosition();
	while (pos)
	{
		PLUGIN *plugin = Plugins.GetNext(pos);
		T_FUNCVOID func;
		func = (T_FUNCVOID) GetProcAddress(plugin->hHandle, "NMContactsConnected");
		if (!func) continue;
		func();
	}
}

void PluginsApplicationExit()
{
	CList<PLUGIN *, PLUGIN *> &Plugins = GetApp()->View->Plugins;
	POSITION pos;
	pos = Plugins.GetHeadPosition();
	while (pos)
	{
		PLUGIN *plugin = Plugins.GetNext(pos);
		T_FUNCVOID func;
		func = (T_FUNCVOID) GetProcAddress(plugin->hHandle, "NMApplicationExit");
		if (!func) continue;
		func();
		FreeLibrary(plugin->hHandle);
		Plugins.RemoveAt(Plugins.Find(plugin));
		delete plugin;
	}
}

void PluginsContactAdded(CContact *Contact)
{
	CList<PLUGIN *, PLUGIN *> &Plugins = GetApp()->View->Plugins;
	POSITION pos;
	if (!IsContact(Contact)) return;
	pos = Plugins.GetHeadPosition();
	while (pos)
	{
		PLUGIN *plugin = Plugins.GetNext(pos);
		T_FUNCVOIDPTR func;
		func = (T_FUNCVOIDPTR) GetProcAddress(plugin->hHandle, "NMContactAdded");
		if (!func) continue;
		func((CONTACT *)MakeExtContact(&contact, Contact));
	}
}

void PluginsContactDeleted(CContact *Contact)
{
	CList<PLUGIN *, PLUGIN *> &Plugins = GetApp()->View->Plugins;
	POSITION pos;
	if (!IsContact(Contact)) return;
	pos = Plugins.GetHeadPosition();
	while (pos)
	{
		PLUGIN *plugin = Plugins.GetNext(pos);
		T_FUNCCHAR func;
		func = (T_FUNCCHAR) GetProcAddress(plugin->hHandle, "NMContactDeleted");
		if (!func) continue;
		func(MakeExtContact(&contact, Contact)->ip);
	}
}

void PluginsContactStatusChanged(CContact *Contact, unsigned long mask)
{
	CList<PLUGIN *, PLUGIN *> &Plugins = GetApp()->View->Plugins;
	POSITION pos;
	if (!IsContact(Contact)) return;
	pos = Plugins.GetHeadPosition();
	while (pos)
	{
		PLUGIN *plugin = Plugins.GetNext(pos);
		T_FUNCSTATUS func;
		func = (T_FUNCSTATUS) GetProcAddress(plugin->hHandle, "NMContactStatusChanged");
		if (!func) continue;
		func((CONTACT *)MakeExtContact(&contact, Contact), mask);
	}
}

void PluginsConversationWindowOpened(CContact *Contact)
{
	CList<PLUGIN *, PLUGIN *> &Plugins = GetApp()->View->Plugins;
	POSITION pos;
	if (!IsContact(Contact)) return;
	pos = Plugins.GetHeadPosition();
	while (pos)
	{
		PLUGIN *plugin = Plugins.GetNext(pos);
		T_FUNCCHAR func;
		func = (T_FUNCCHAR) GetProcAddress(plugin->hHandle, "NMConversationWindowOpened");
		if (!func) continue;
		func(MakeExtContact(&contact, Contact)->ip);
	}
}

void PluginsMessageReceived(CContact *Contact, char *Message)
{
	CList<PLUGIN *, PLUGIN *> &Plugins = GetApp()->View->Plugins;
	POSITION pos;
	if (!IsContact(Contact)) return;
	pos = Plugins.GetHeadPosition();
	while (pos)
	{
		PLUGIN *plugin = Plugins.GetNext(pos);
		T_MESSAGE func;
		func = (T_MESSAGE) GetProcAddress(plugin->hHandle, "NMMessageReceived");
		if (!func) continue;
		func(MakeExtContact(&contact, Contact)->ip, Message);
	}
}

void PluginsTimer(unsigned int nIDEvent)
{
	CList<PLUGIN *, PLUGIN *> &Plugins = GetApp()->View->Plugins;
	POSITION pos;
	pos = Plugins.GetHeadPosition();
	while (pos)
	{
		PLUGIN *plugin = Plugins.GetNext(pos);
		if (plugin->TimerId == LOBYTE(nIDEvent))
		{
			T_TIMER func;
			func = (T_TIMER) GetProcAddress(plugin->hHandle, "NMTimer");
			if (!func) continue;
			func(HIBYTE(nIDEvent));
		}
		else continue;
	}
}

void PluginsMessageSent(CContact *Contact, char *Message)
{
	CList<PLUGIN *, PLUGIN *> &Plugins = GetApp()->View->Plugins;
	POSITION pos;
	pos = Plugins.GetHeadPosition();
	while (pos)
	{
		PLUGIN *plugin = Plugins.GetNext(pos);
		T_MESSAGESEND func;
		func = (T_MESSAGESEND) GetProcAddress(plugin->hHandle, "NMMessageSend");
		if (!func) continue;
		func(MakeExtContact(&contact, Contact)->ip, Message);
	}
}


BOOL __declspec(dllexport) __stdcall 
NMAppendMainMenu(int whichMenu, int nMenu, char *szText, void (__stdcall *lpfn)(void))
{
	return GetApp()->MainFrame->AppendMainMenu(whichMenu, nMenu, szText, lpfn);
}

BOOL __declspec(dllexport) __stdcall
NMDeleteMainMenu(int whichMenu, int nMenu, unsigned int nItem)
{
	return GetApp()->MainFrame->DeleteMainMenu(whichMenu, nMenu, nItem);
}

BOOL __declspec(dllexport) __stdcall 
NMSendMessage(char *Ip, char *szMessage)
{
	if (!GetApp()->View->GetContact(IP(Ip))) return FALSE;

	MESSAGE *Msg = new MESSAGE;

	Msg->To = GetApp()->View->GetContact(IP(Ip));
	strncpy(Msg->Message, szMessage, 500);
	Msg->Message[500] = 0;

	if (Msg->To->IsConvWindowOpen())
	{
		Msg->To->pThread->Conv->SendMessage(WM_RECEIVEDMESSAGE, 1, (LPARAM)nstrdup(Msg->Message));
	}
	return ::SendMessage(GetApp()->View->GetSafeHwnd(), WM_SENDTHISMESSAGE, 0, (LPARAM)Msg);
}

BOOL __declspec(dllexport) __stdcall
NMGetSelectedContact(CONTACT *extContact)
{
	CContact *Contact = GetApp()->View->GetFromListItem(GetApp()->View->GetSelectionMark());	
	if (Contact)
	{
		MakeExtContact(extContact, Contact);
		return TRUE;
	}
	return FALSE;
}

BOOL __declspec(dllexport) __stdcall
NMGetContactInfo(char *Ip, CONTACT *extContact)
{
	CContact *Contact = GetApp()->View->GetContact(IP(Ip));
	if (Contact)
	{
		MakeExtContact(extContact, Contact);
		return TRUE;
	}
	return FALSE;
}

void __declspec(dllexport) __stdcall
NMSetScreenName(char *szNewName)
{
	GetApp()->View->ChangeMyName(szNewName);
}

void __declspec(dllexport) __stdcall
NMSetAway(bool bAway, char *szReason)
{
	GetApp()->View->Me.SetAway(bAway, szReason ? szReason : "");
}

void __declspec(dllexport) __stdcall
NMSetOffline(bool bOffline)
{
	GetApp()->View->SetMeOffline(bOffline);
}

void __declspec(dllexport) __stdcall
NMSetTimer(BYTE nPluginID, BYTE nIDEvent, unsigned int nDelay)
{	
	GetApp()->MainView->SetTimer(MAKEWORD(nPluginID, nIDEvent), nDelay, NULL);
}

HWND __declspec(dllexport) __stdcall
NMGetHwnd()
{
	return GetApp()->MainFrame->GetSafeHwnd();
}