减少远程桌面new的频次

减少远程桌面new缓冲区的频率，将部分从堆上new固定内存的操作改用从栈上分配内存。

server/2015Remote/TalkDlg.cpp

@@ -25,6 +25,7 @@ void CTalkDlg::DoDataExchange(CDataExchange* pDX)
 {
 	CDialog::DoDataExchange(pDX);
 	DDX_Control(pDX, IDC_EDIT_TALK, m_EditTalk);
+	m_EditTalk.SetLimitText(2048);
 }
 
 
@@ -63,15 +64,12 @@ void CTalkDlg::OnBnClickedButtonTalk()
 	CString strData;
 	m_EditTalk.GetWindowText(strData);            //EditBox <20>ϻ<EFBFBD><CFBB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
 
-	char* szBuffer = new char[iLength + 1];		// 2019.1.5 <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>1
-	memset(szBuffer,0,sizeof(char)*iLength);
-
+	char szBuffer[4096] = {0};
 	strcpy(szBuffer,strData.GetBuffer(0));
 
 	m_EditTalk.SetWindowText(NULL);          //EditBox <20>ϵ<EFBFBD><CFB5><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
 
 	m_iocpServer->OnClientPreSending(m_ContextObject, (LPBYTE)szBuffer, strlen(szBuffer));//<2F><><EFBFBD>Լ<EFBFBD><D4BC>ڴ<EFBFBD><DAB4>е<EFBFBD><D0B5><EFBFBD><EFBFBD>ݷ<EFBFBD><DDB7><EFBFBD>
-	delete [] szBuffer;
 }