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Screensize: 640 x 480 800 x 600 1024 x 768 1280 x 1024 UserName: Password: Anti-Spam Code: Format Mode: Basic  Help  Prompt  Format: Font Andale Mono Arial Arial Black Book Antiqua Century Gothic Comic Sans MS Courier New Georgia Impact Lucida Console Script MT Bold Stencil Tahoma Times New Roman Trebuchet MS Verdana   Size 1 2 3 4 5 6   Color Black Red Yellow Pink Green Orange Purple Blue Beige Brown Teal Navy Maroon LimeGreen Message: * HTML is OFF * Forum Code is ON Smilies [quote][i]Originally posted by cosy[/i] [br]Hi, I am a research student using origin as my graphing software.I use DDE to exchange data between my application and Origin in "real time".My MFC application is the DDE server and the code for intializing it goes like this void timersettingsDlg::OnViewPlots() { DWORD g_idInst; HSZ hszService; char ServerBuf[MAX_COMPUTERNAME_LENGTH+8]; wsprintf( ServerBuf,"TRIC_DDE_SERVER"); ShellExecute(NULL, "open","\"E:\\Documents and Settings\\Adminastraitor\\Desktop\\NEW TRIC\\TTRIC\\Origintric.OPJ\"", NULL, NULL, SW_SHOWNORMAL); // Register the server application. if( DdeInitialize( &g_idInst, (PFNCALLBACK) DdeCallback, APPCLASS_STANDARD | CBF_FAIL_SELFCONNECTIONS | CBF_FAIL_REQUESTS | CBF_FAIL_EXECUTES, 0L ) == DMLERR_NO_ERROR ) AfxMessageBox("Hello"); hszService = DdeCreateStringHandle( g_idInst, ServerBuf, 0 ); DdeNameService( g_idInst,hszService,0L,DNS_REGISTER); } and the callback function for my MFC server goes like HDDEDATA CALLBACK DdeCallback( UINT iType, UINT iFmt, HCONV hConv, HSZ hsz1, HSZ hsz2, HDDEDATA hData, DWORD dwData1, DWORD dwData2 ) { MessageBeep(MB_ICONHAND); AfxMessageBox("Hello"); return (HDDEDATA) TRUE; } I hope everthing is fine till now. I tried to connect to this server from a client , Origin in my case and I used Labtalk for the same. The code goes like dde -c TRIC_DDE_SERVER|data id; If my code works properly or if my programing is right , I must get a message box with "Hello", which I dont. I am completely new tothis labtalk script and so can anyone help me out. Thanks, Deepak Samuel. [/quote]   Check here to include your profile signature. Check here to subscribe to this topic.