textchat.cpp

来自「这是一个比较复杂的远程控制工具,分为服务器与客户斋,让你了解socket编程的知」· C++ 代码 · 共 518 行 · 第 1/2 页

	nLen = SendDlgItemMessage(m_hDlg, IDC_CHATAREA_EDIT, EM_GETTEXTLENGTHEX, (WPARAM)&lpG, 0L);
	if (szMessage != NULL) //print the sender's message
	{	
		SendDlgItemMessage(m_hDlg, IDC_CHATAREA_EDIT,WM_GETTEXT, TEXTMAXSIZE-1,(LONG)m_szTextBoxBuffer);
		cr.cpMax = nLen; //strlen(m_szTextBoxBuffer);	 // Select the last caracter to make the text insertion
		cr.cpMin  = cr.cpMax;
		SendDlgItemMessage(m_hDlg, IDC_CHATAREA_EDIT,EM_EXSETSEL,0,(LONG) &cr);
		SetTextFormat(false, false, 0x75, "MS Sans Serif", dwColor != GREY ? BLACK : GREY);	
		_snprintf(m_szTextBoxBuffer, TEXTMAXSIZE-1, "%s", szMessage);		
		SendDlgItemMessage(m_hDlg, IDC_CHATAREA_EDIT,EM_REPLACESEL,FALSE,(LONG)m_szTextBoxBuffer); 
	}

	// Scroll down the chat window
	// The following seems necessary under W9x & Me if we want the Edit to scroll to bottom...
	SCROLLINFO si;
    ZeroMemory(&si, sizeof(SCROLLINFO));
    si.cbSize = sizeof(SCROLLINFO);
    si.fMask = SIF_RANGE|SIF_PAGE;
    GetScrollInfo(GetDlgItem(m_hDlg, IDC_CHATAREA_EDIT), SB_VERT, &si);
	si.nPos = si.nMax - max(si.nPage - 1, 0);
	SendDlgItemMessage(m_hDlg, IDC_CHATAREA_EDIT, WM_VSCROLL, MAKELONG(SB_THUMBPOSITION, si.nPos), 0L);	// Scroll down the ch

	// This line does the bottom scrolling correctly under NT4,W2K, XP...
	// SendDlgItemMessage(m_hDlg, IDC_CHATAREA_EDIT, WM_VSCROLL, SB_BOTTOM, 0L);

}

//
// Send local text content
//
void TextChat::SendLocalText(void)
{
	if (m_pCC->m_fFileTransferRunning) return; // Don't break a running file transfer please...

	// We keep it because we could use it
	// for future retype functionality. (F3)
	memcpy(m_szLastLocalText, m_szLocalText, strlen(m_szLocalText));

	PrintMessage(m_szLocalText, m_szLocalName, BLUE);

    rfbTextChatMsg tcm;
    tcm.type = rfbTextChat;
	tcm.length = Swap32IfLE(strlen(m_szLocalText));
    m_pCC->m_socket->SendExact((char *)&tcm, sz_rfbTextChatMsg, rfbTextChat);
	m_pCC->m_socket->SendExact((char *)m_szLocalText, strlen(m_szLocalText));

	//and we clear the input box
	SetDlgItemText(m_hDlg, IDC_INPUTAREA_EDIT, "");
	return;
}



LRESULT CALLBACK TextChat::DoDialogThread(LPVOID lpParameter)
{
	TextChat* _this = (TextChat*)lpParameter;

	_this->m_fTextChatRunning = true;
 	return DialogBoxParam(hAppInstance, MAKEINTRESOURCE(IDD_TEXTCHAT_DLG), 
							NULL, (DLGPROC) TextChatDlgProc, (LONG) _this);
}


int TextChat::DoDialog()
{
	m_fTextChatRunning = true; // Here.Important.
 	return DialogBoxParam(hAppInstance, MAKEINTRESOURCE(IDD_TEXTCHAT_DLG), 
							NULL, (DLGPROC) TextChatDlgProc, (LONG) this);
}

HWND TextChat::DisplayTextChat()
{
	DWORD threadID;
	HANDLE m_Thread = CreateThread(NULL,0,(LPTHREAD_START_ROUTINE)(TextChat::DoDialogThread),(LPVOID)this, 0, &threadID);
	ResumeThread(m_Thread);
	return (HWND)0;

}

//
//
//
void TextChat::KillDialog()
{
	// DestroyWindow(m_hDlg);
	m_fTextChatRunning = false;
	PostMessage(m_hDlg, WM_COMMAND, IDCANCEL, 0);
}


//
//
//
void TextChat::RefuseTextChat()
{
	SendTextChatRequest(CHAT_CLOSE);
	SendTextChatRequest(CHAT_FINISHED);
}


//
//
//
BOOL CALLBACK TextChat::TextChatDlgProc(  HWND hWnd,  UINT uMsg,  WPARAM wParam, LPARAM lParam ) {

	TextChat *_this = (TextChat *) GetWindowLong(hWnd, GWL_USERDATA);

	switch (uMsg)
	{
	case WM_INITDIALOG:
		{
            SetWindowLong(hWnd, GWL_USERDATA, lParam);
            TextChat *_this = (TextChat *) lParam;

			if (_this->m_szLocalText == NULL || _this->m_szRemoteText == NULL)
				EndDialog(hWnd, FALSE);

			_this->m_hWnd = hWnd;
			_this->m_hDlg = hWnd;

			if (_snprintf(_this->m_szRemoteName,MAXNAMESIZE-1,"%s", _this->m_pCC->GetClientName()) < 0 )
			{
				_this->m_szRemoteName[MAXNAMESIZE-4]='.';
				_this->m_szRemoteName[MAXNAMESIZE-3]='.';
				_this->m_szRemoteName[MAXNAMESIZE-2]='.';
				_this->m_szRemoteName[MAXNAMESIZE-1]=0x00;
			}	

			const long lTitleBufSize = 256;			
			char szTitle[lTitleBufSize];
			
			_snprintf(szTitle,lTitleBufSize-1, sz_ID_CHAT_WITH_S_ULTRAVNC,_this->m_szRemoteName);
			SetWindowText(hWnd, szTitle);			

			memset(_this->m_szLocalText, 0, TEXTMAXSIZE);

			// Local message box	
			SetDlgItemText(hWnd, IDC_INPUTAREA_EDIT, _this->m_szLocalText); 
			
			//  Chat area			
			_this->SetTextFormat(); //  Set character formatting and background color
			SendDlgItemMessage( hWnd, IDC_CHATAREA_EDIT, EM_SETBKGNDCOLOR, FALSE, 0xFFFFFF ); 

			// if (!_this->m_fPersistentTexts)
			{
				memset(_this->m_szLastLocalText, 0, TEXTMAXSIZE); // Future retype functionnality
				memset(_this->m_szTextBoxBuffer, 0, TEXTMAXSIZE); // Clear Chat area 
				//  Load and display diclaimer message
				// sf@2005 - Only if the DSMplugin is used
				if (!_this->m_pCC->m_server->GetDSMPluginPointer()->IsEnabled())
				{
					if (LoadString(hAppInstance,IDS_WARNING,_this->m_szRemoteText, TEXTMAXSIZE -1) )
						_this->PrintMessage(_this->m_szRemoteText, NULL ,GREY);
				}
			}
			// else
			//	SendDlgItemMessage(hWnd,IDC_CHATAREA_EDIT, WM_SETTEXT, 0, (LONG)_this->m_szTextBoxBuffer);
			
			// Scroll down the chat window
			// The following seems necessary under W9x & Me if we want the Edit to scroll to bottom...
			SCROLLINFO si;
			ZeroMemory(&si, sizeof(SCROLLINFO));
			si.cbSize = sizeof(SCROLLINFO);
			si.fMask = SIF_RANGE|SIF_PAGE;
			GetScrollInfo(GetDlgItem(hWnd, IDC_CHATAREA_EDIT), SB_VERT, &si);
			si.nPos = si.nMax - max(si.nPage - 1, 0);
			SendDlgItemMessage(hWnd, IDC_CHATAREA_EDIT, WM_VSCROLL, MAKELONG(SB_THUMBPOSITION, si.nPos), 0L);	
			// This line does the bottom scrolling correctly under NT4,W2K, XP...
			// SendDlgItemMessage(m_hDlg, IDC_CHATAREA_EDIT, WM_VSCROLL, SB_BOTTOM, 0L);

			// SendDlgItemMessage(hWnd, IDC_PERSISTENT_CHECK, BM_SETCHECK, _this->m_fPersistentTexts, 0);

			//if (strlen(_this->m_szUserID) > 0)
			//	SetDlgItemText(hWnd, IDC_USERID_EDIT, _this->m_szUserID);
			
			SetForegroundWindow(hWnd);
            return TRUE;
		}
		break;

	case WM_COMMAND:
		switch (LOWORD(wParam))
		{
		/*
		case IDC_PERSISTENT_CHECK:
			  _this->m_fPersistentTexts = (SendDlgItemMessage(hWnd, IDC_PERSISTENT_CHECK, BM_GETCHECK, 0, 0) == BST_CHECKED);
			return TRUE;
		*/

		case IDOK:
			// Client order to close TextChat 			
			EndDialog(hWnd, FALSE);
			_this->m_fTextChatRunning = false;
			_this->SendTextChatRequest(CHAT_FINISHED);
			return TRUE;

		case IDCANCEL:			
			_this->SendTextChatRequest(CHAT_CLOSE); // Client must close TextChat
			EndDialog(hWnd, FALSE);
			_this->m_fTextChatRunning = false;
			_this->SendTextChatRequest(CHAT_FINISHED);
			return TRUE;

		case IDC_SEND_B:
			{
			memset(_this->m_szLocalText,0,TEXTMAXSIZE);
			UINT nRes = GetDlgItemText( hWnd, IDC_LOCALTEXT_EDIT, _this->m_szLocalText, TEXTMAXSIZE-1);
			strcat(_this->m_szLocalText, "\n");
			_this->SendLocalText();	
			SetFocus(GetDlgItem(hWnd, IDC_INPUTAREA_EDIT));
			}
			return TRUE;

		case IDC_INPUTAREA_EDIT:
			if(HIWORD(wParam) == EN_UPDATE)			
			{
				UINT nRes = GetDlgItemText( hWnd, IDC_INPUTAREA_EDIT, _this->m_szLocalText, TEXTMAXSIZE);
				if (strstr(_this->m_szLocalText, "\n") > 0 ) // Enter triggers the message transmission
				{
					// nRes = GetDlgItemText( hWnd, IDC_USERID_EDIT, _this->m_szUserID, 16);
					_this->SendLocalText();
				}								
			}
			return TRUE;

		case IDC_HIDE_B:
			_this->ShowChatWindow(false);
			return TRUE;

		default:
			return TRUE;
			break;
		}
		break;

	case WM_SYSCOMMAND:
		switch (LOWORD(wParam))
		{
		case SC_RESTORE:
			_this->ShowChatWindow(true);
			//SetFocus(GetDlgItem(hWnd, IDC_INPUTAREA_EDIT));
			return TRUE;
		}
		break;

	case WM_DESTROY:
		// _this->m_fTextChatRunning = false;
		// _this->SendTextChatRequest(CHAT_FINISHED);
		EndDialog(hWnd, FALSE);
		return TRUE;
	}
	return 0;
}