C / C++ / MFC

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Re: Simple Chat Client with CSocket Class GHinkson11-Mar-04 3:51 GHinkson 11-Mar-04 3:51  I already have links to the rfc, its programming with the CSocket class that i need the help with... Re: Simple Chat Client with CSocket Class Anonymous11-Mar-04 23:42 Anonymous 11-Mar-04 23:42  http://msdn.microsoft.com/library/default.asp?url=/library/en-us/vccore98/HTML/_core_windows_sockets.3a_.sequence_of_operations.asp if u didnt go through this site then please try.It will give you better idea about sockets Re: Simple Chat Client with CSocket Class GHinkson11-Mar-04 23:46 GHinkson 11-Mar-04 23:46  Thanks alot for the link, but i've done most of my research at MSN. However, i am very happy to say that on further trial&error, i've managed to get the code working... thanks so much for the help thateveryone has given. Events and Threads hph11-Mar-04 2:25 hph 11-Mar-04 2:25  Hello at all, imagine the following situation: You have created an auto-signaled event, and multiple Threads are waiting for this event to get signaled. The event in addition gets signaled, and one thread starts its execution which implied the event has gotton nonsignaled. So my question is, when does the event gets again signaled ? Thanks in advance! Re: Events and Threads Steve S11-Mar-04 2:54 Steve S 11-Mar-04 2:54  What made it get signalled originally? If some process/thread is running and periodically signalling, then presumably it can signal again. If not, something has to happen to kick-start. Would the thread that was started not signal the thread prior to waiting on the event? Steve S Re: Events and Threads hph11-Mar-04 3:18 hph 11-Mar-04 3:18  Thank you, i got it! Subclassing / embedding Active X's rw10411-Mar-04 2:13 rw104 11-Mar-04 2:13  Greetings... In VC++ 6 I want to create an activeX that contains another activeX, is this possible? I have tried subclassing the control but I cant get the thing running? It works if you subclass from ActiveX's that are listed in the project wizard dropdown (upon wizard project creation, step 2 I think, like BUTTON for example) but does not if you are trying to inherit from a custom activeX!!! Cheers Inveting a BitMap Pazzuzu11-Mar-04 1:35 Pazzuzu 11-Mar-04 1:35  Hi Guys, I have run into a problem for which I havent found a solution till now.Iam trying to show it here in a perspective in which Iam doing it: I want to draw a bitmap to the screen m_deviceContext-is the deviceContext to Which I want to draw my Bitmap. Its mapping mode is set as MM_TWips. CDC dcMemory; dcMemory.CreateCompatibleDC(m_deviceContext); CBitmap *bitmap=CBitmap::FromHandle(handle);//Handle of BitMap is passed here. BITMAP bm; bitmap->GetBitmap(&bm); CBitmap* pOldBitmap = dcMemory.SelectObject(bitmap); I draw it as follows: xCord,-yCord,srBpWidth),srBpHeight are in Logical units. m_deviceContext->StretchBlt(xCord,-yCord,(srBpWidth),(srBpHeight),&dcMemory,0,0 ,bm.bmWidth,bm.bmHeight,SRCCOPY); (Figure Attached) I get the figure but it is drawn from the co-ordinate point "up"(As a mirror Image ).I want it to drawn "Down" from the co-ordinate point or Is there any way to inverse it.... Thanks.... Re: Inveting a BitMap Pazzuzu11-Mar-04 2:02 Pazzuzu 11-Mar-04 2:02  Solved The Problem............... How to check that if a file has been already opened Deepak Samuel11-Mar-04 1:35 Deepak Samuel 11-Mar-04 1:35  Hi, I use the function ShellExecute(......) to open a file. How to find if a file has been already opened? Thanks, how to call a menu by clicking a button from a dialog? yeefarn11-Mar-04 0:57 yeefarn 11-Mar-04 0:57  hello, i'm doing a project using mfc, vc++... i'd created a dialog as my first window, i decided to create a menu as my second window, however, to link the menu to the dialog is not as easy as what i think... if i wanna call a second dialog using the first dialong, i may use the .domodal to call it... but if i wanna call a menu, what should i do with it??? help!!! Re: how to call a menu by clicking a button from a dialog? Tomasz Sowinski11-Mar-04 3:01 Tomasz Sowinski 11-Mar-04 3:01  I guess it's CMenu::TrackPopupMenu you're looking for, probably with TPM_RETURNCMD flag. Tomasz Sowinski -- http://www.shooltz.com no animal was harmed more than once during creation of this post Re: how to call a menu by clicking a button from a dialog? Roger Allen11-Mar-04 4:58 Roger Allen 11-Mar-04 4:58  If you want the menu options to always be available. Do something like this in your OnInitDialog() CMenu menu; menu.LoadMenu(ID_OF_MENU); SetMenu(menu.m_hMenu); menu.Detach();// now owned by dialog DrawMenuBar(); The dialog will destroy the menu automatically when itselef is destroyed You then just need to write ON_COMMAND() handlers for each item. If you need to enable/disable items, handle the WM_INITMENUPOPUP message and process the individual items there. Roger Allen - Sonork 100.10016 Roger Wright: Remember to buckle up, please, and encourage your friends to do the same. It's not just about saving your life, but saving the quality of life for those you may leave behind... Parsing CString Caoimh11-Mar-04 0:46 Caoimh 11-Mar-04 0:46  I'v got a CString string as follows CString strPacket = "$1234567FFFFFFFF#00 I want to parse the string so that str1 = "1234567" & str2 = "FFFFFFFF" Any suggestions on how to do this At the moment I'm using the following, however there must be an easier way of doing this. m_strRspData = ""; for(i = 1; i < 9; i++){ m_strHex = m_strRspPacket.GetAt(i); m_strRspData += m_strHex; } m_strRspData.MakeUpper(); Re: Parsing CString Robert A. T. Káldy11-Mar-04 1:00 Robert A. T. Káldy 11-Mar-04 1:00  Try Tokenizer class at Codeproject. Robert-Antonio It's a good luck, if you meet a real fink. Then you get a respect to normal, mid-honest people." Re: Parsing CString David Crow11-Mar-04 2:38 David Crow 11-Mar-04 2:38  Something like: int x = 0; while (isdigit(strPacket[x])) { str1 += strPacket[x]; x++; } str2 = strPacket.Mid(x); However, if you are always breaking between the 8th and 9th characters, just use Left() and Mid(). "The pointy end goes in the other man." - Antonio Banderas (Zorro, 1998) TerminateProcess w2k and xp! ceuba11-Mar-04 0:46 ceuba 11-Mar-04 0:46  VC6.0 Hello, i have a question, how can i terminate a process from an another process? Ich my Situation i want start program b.exe from a.exe. But b.exe should start once a time! I do it with that: 1) First start b.exe: PROCESS_INFORMATION ProcInfo; STARTUPINFO startupInfo; memset(&startupInfo, 0, sizeof(startupInfo)); startupInfo.cb = sizeof(startupInfo); CreateProcess(NULL, // lpApplicationName "C:\\b.exe", // lpCommandLine NULL, // lpProcessAttributes NULL, // lpThreadAttributes NULL, // bInheritHandles NULL, // dwCreationFlags NULL, // lpEnvironment NULL, // lpCurrentDirectory &startupInfo, // lpStartupInfo ProcInfo); // lpProcessInformation 2) Second i check, wheter program is still activ HANDLE handle = OpenProcess(PROCESS_ALL_ACCESS,TRUE,pProcInfo->dwProcessId); if (handle!=NULL) { ... if programm b.exe activ terminate b.exe ... } else { ... start b.exe ... } 3) If programm b.exe active i terminate it and restart it I do it with this code: TerminateProcess(m_pProcInfo->hProcess, 0); Now i got back to step 1: This works fine in w2k, but in xp step 2 doesn't work. The handle is always not NULL. What is wrong? Give's a better way to do that? Thanks Chris Student Re: TerminateProcess w2k and xp! Tomasz Sowinski11-Mar-04 3:06 Tomasz Sowinski 11-Mar-04 3:06  From the top of my head: maybe instead of PROCESS_ALL_ACCESS you should use PROCESS_TERMINATE? Tomasz Sowinski -- http://www.shooltz.com Re: TerminateProcess w2k and xp! ceuba11-Mar-04 3:33 ceuba 11-Mar-04 3:33  Hello Tomasz, thank you for your tip. I changed PROCESS_ALL_ACCESS to PROCESS_TERMINATE in OpenProcess(...). But i have the same effect as before. When i alredy had terminated the programm b.exe and it doesn't exist in the tast-manager. I do step 2 and the handle is alawy not NULL. But i see this effect only in XP. W2k show me NULL and I can start b.exe with createprocess. What do i wrong! Thanks Chris ceuba@gmx.net Student Re: TerminateProcess w2k and xp! Tomasz Sowinski11-Mar-04 3:46 Tomasz Sowinski 11-Mar-04 3:46  ceuba wrote: When i alredy had terminated the programm b.exe and it doesn't exist in the tast-manager. I do step 2 and the handle is alawy not NULL. But i see this effect only in XP. W2k show me NULL and I can start b.exe with createprocess. The process ID may be reused, so maybe you're getting the handle for other process? Anyway, since you're calling CreateProcess yourself, why don't you use another thread and WaitForSingleObject? Tomasz Sowinski -- http://www.shooltz.com Convert CString to Unsigned Long Caoimh11-Mar-04 0:41 Caoimh 11-Mar-04 0:41  I need to convert CString string to unsigned long. Exammple Need CString strPacket = "FFFFF400" to unsigned long Also any idea how to add a value to strPacket. What I mean is strPacket = "FFFFF400" + "4" = "FFFFF404"; Re: Convert CString to Unsigned Long toxcct11-Mar-04 0:46 toxcct 11-Mar-04 0:46  sscanf((LPCTSTR)strPacket, "%ul", &myulVar); simple, rustik.... assuming that your string is a valid unsigned long value... TOXCCT >>> GEII power Re: Convert CString to Unsigned Long David Crow11-Mar-04 2:39 David Crow 11-Mar-04 2:39  Caoimh wrote: I need to convert CString string to unsigned long. Use strtoul() for this. Caoimh wrote: Also any idea how to add a value to strPacket. What I mean is strPacket = "FFFFF400" + "4" = "FFFFF404"; Assuming that strPacket is a CString object, this is perfectly valid: strPacket = "FFFFF400"; // assignment strPacket += "4"; // concatenation "The pointy end goes in the other man." - Antonio Banderas (Zorro, 1998) Re: Convert CString to Unsigned Long Steve S11-Mar-04 2:52 Steve S 11-Mar-04 2:52  (cough) Actually, I think they meant unsigned long x; unsigned long y; x = strtoul(str,NULL,16); y = strtoul(str2, NULL,16); strPacket.Format("%08lx", x+y); Steve S Re: Convert CString to Unsigned Long Michael Haephrati12-Apr-15 9:39 Michael Haephrati 12-Apr-15 9:39  I usually use <pre lang="c++"> _wtol(cstringvar) - Michael Haephrati מיכאל האפרתי

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