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Re: Interrupt Service Routine Anonymous26-Apr-05 11:22 Anonymous 26-Apr-05 11:22  http://msdn.microsoft.com/library/en-us/kmarch/hh/kmarch/Intrupts_fb7c0886-ba50-4e41-8873-dc401b57e203.xml.asp?frame=true[^] How to get the absolute path of the virtual folder Sandeep. Vaidya26-Apr-05 6:45 Sandeep. Vaidya 26-Apr-05 6:45  Hi, I need to get the absolute path for the given virtual folder path. Consider an example given below. Windows has a virtual folder "My Documents" placed in Desktop. So by using the path "C:\Documents and Settings\Administrator\Desktop\My Documents" can we get the Absolute ( Physical) path for the "My Documents"? In my case the physical path for the "My Documents" is "C:\Documents and Settings\Administrator\My Documents". Please send me the answer as soon as possible. Thanks in Advance vaidya Re: How to get the absolute path of the virtual folder Dean Michaud26-Apr-05 7:36 Dean Michaud 26-Apr-05 7:36  Check out the help on SHGetSpecialFolderPath() and SHGetFolderPath(); I've not used these in a while, but they fit the bill. : Dean Michaud Re: How to get the absolute path of the virtual folder Anonymous26-Apr-05 21:03 Anonymous 26-Apr-05 21:03  For SHGetSpecialFolderPath() we need to give the CSIDL constants. I will not come to know which folder it is. We can even rename the My documents special folder in the desktop. So there is no way of knowing it is my documents or something else. Regarding the SHGetFolderPath(), it wont accept the virtual folder. It works only for the real folder. Question on dialog create Anonymous26-Apr-05 6:10 Anonymous 26-Apr-05 6:10  I get a strange error when I try to create a second dialog window from my main dialog. I do a simple new MyDialogClass (which inherits from the Window's dialog class) and call the create function with the resource ID number. I get a window which only exists inside my original app's window. I can move it inside my app window. Did I forget to set a resource property? Re: Question on dialog create Alex_Y26-Apr-05 8:01 Alex_Y 26-Apr-05 8:01  May be you somewere set WS_CHILD flag either in resources or explicitly? Thread lock Alex_Y26-Apr-05 5:49 Alex_Y 26-Apr-05 5:49  If I have 15 UI threads where each of them depends of each other. (If one hang other will hang). What could be efficient way to find which hang first. Thanks. Alex Re: Thread lock Axter26-Apr-05 7:46 Axter 26-Apr-05 7:46  Are you calling locks in your code? If so, are you calling the locks to synchronize access to a shared resource? If so, consider using the following wrapper class that can automate the locking for you in a thread safe object orientated manner. http://code.axter.com/ThreadSafeObject.h Top ten member of C++ Expert Exchange. http://www.experts-exchange.com/Cplusplus Re: Thread lock Alex_Y26-Apr-05 7:58 Alex_Y 26-Apr-05 7:58  There is only one question how to find which thread hang first. Bad solution is to monitor threads with high frequancy just call WaitForSingleObject or PostMessage to thread and get reply. Solution is bad because inefficient and inaccurate. There is very high possibilty that you detect second hanged thread instead of first (initiator of hang). So if you increase frequancy and make time out (in waitforsingleobject) shorter you basicly wasting CPU on detection. Imagine if number of threads grow to 100. Re: Thread lock Bob Stanneveld26-Apr-05 10:31 Bob Stanneveld 26-Apr-05 10:31  I don't know what you are doing with 15 UI threads, that ask for a deadlock??? Consider using worker threads and polling using a timer. But if you really need that, you can always consider using a map, where a thread 'registers' itself before asking for a lock and 'removing' itself when the lock is aquired or released. You can use the value returned by the GetTickCount function as the key. I also got the blogging virus..[^] Re: Thread lock 26-Apr-05 10:49 26-Apr-05 10:49  I mean lock when thread hang for some unimportant reason. Keep in mind that if thread(UI thread) hang you are not be able to continue recieving WM_TIMER. I just need to know which of the thread in chain of the threads hanged first. Example A thread -> connected to B -> to C -> to D If D hangs C hangs, than B than A Plus you don't know how intensive those thread has been consuming CPU. What I mean you can't rely that A strarted first and D hanged last that's means that CPU time for A > B. Thanks. Alex Re: Thread lock Bob Stanneveld27-Apr-05 8:29 Bob Stanneveld 27-Apr-05 8:29  A thread doesn't 'hang' for some unimportant reason! Either you requested a lock that one thread didn't release for some reason (maybe deadlock), or you made a little error and one thread got stuck in a infinite loop consuming all CPU time. I can't think about an other reason why a thread could 'hang'.. If a thread is 'hanging' because it is waiting for a lock, you know where the thread is going to hang. If you just log some messages when a thread is going to request a lock and when a thread is releasing the lock, than you know which thread hangs first. All you have to do is figure out a way so that the program also 'knows' which thread hangs first. This isn't a concrete code solution, but since I don't know exactly what you are trying to achieve, I can't give you one. I also got the blogging virus..[^] Re: Thread lock Alex_Y27-Apr-05 10:09 Alex_Y 27-Apr-05 10:09  You know what is funny part. This is not my thread this is third party component. For me is not important why something happend with component what I need to do. I need to detect which hang first and kill it. If kill inocent thread which part of the chain it will be bad. Thats why I need to know which thread is hang first. I have wrapper thread around component which communicates with componet. So if my wrapper hand I need to kill it. Problem is that other wrapper thread connected to each other. So since one componet hung all my wrapper thread hang. I have some solution which is not so elegant. Create global map key: thread ID value cpu tick count. Than put in the wrapper thread waitforsingleobject with timeout 1 s. After waitforsingleobject call GetTickCount and save value in the map. After some threads hang I will find IDs of hung threads and find which of them has minimal CPU count. Which means that tread was polled last. I need to play with timing. But that waht I have now. Thanks a lot anyway. Alex synchronising objects using threads napoleaninlondon26-Apr-05 5:39 napoleaninlondon 26-Apr-05 5:39  i have three classes A,B,C of which B and C derives from A.Now all three clases have their threads running independently i.e they are peer threads . Now what is the best way to synchronize such that inter-process comunication happens takes place .I mean should i use mutex or shared memory for inter process communication . hitherto shall thou come but not further thee Re: synchronising objects using threads Axter26-Apr-05 7:49 Axter 26-Apr-05 7:49  Exactly what type of communication do you need to perform? Can you give an example? Top ten member of C++ Expert Exchange. http://www.experts-exchange.com/Cplusplus My directx sdk lacks a folder!!! yeetins26-Apr-05 5:35 yeetins 26-Apr-05 5:35  path: .\Samples\C++\DirectShow this folder is essential,but the sdk I installed doesn't have? About scrollbar of CScrollView cash57626-Apr-05 5:12 cash576 26-Apr-05 5:12  CScrollView is a derived class of MFC supporting scroll.When size of document is bigger than size ofviewport,CScrollView will display scroll automatially. How can Hide the scrollbar(s) and i can still scroll the view by such as mousewheel events in this case. Is there any derived class of Cview to complete the same function(supporting scroll but not showing the scrollbar). Re: About scrollbar of CScrollView Peter Ritchie26-Apr-05 16:18 Peter Ritchie 26-Apr-05 16:18  Why in the world would you want to contradict standard Windows usability and provide scrolling without a scrollbar? Why would your users want to re-learn how to scroll, just for your application? Then, have to deal with different mouse gestures as they switch between your applications and all other Windows applications? What happens if your users don't have mouse with a scroll wheel? CScrollView-derived views cannot simply have their scroll bars "hidden"; they are integral to the window. You would probably have to override the non-client size calculations and drawing. PeterRitchie.com Re: About scrollbar of CScrollView cash57626-Apr-05 18:19 cash576 26-Apr-05 18:19  In fact, i want to own a style like ACDsee viewer, users can move the content by drag mouse, but not by scroll the scrollbars. In my derived class of CScrollView, i have complete for it, but i cann't get rid of the scrollbars, it ocuppy the area of use's content. Re: About scrollbar of CScrollView PJ Arends26-Apr-05 18:56 PJ Arends 26-Apr-05 18:56  Then just use CView and handle all the scrolling yourself. "You're obviously a superstar." - Christian Graus about me - 12 Feb '03 "Obviously ???  You're definitely a superstar!!!" mYkel - 21 Jun '04 Within you lies the power for good - Use it! Honoured as one of The Most Helpful Members of 2004 Re: About scrollbar of CScrollView cash57626-Apr-05 19:28 cash576 26-Apr-05 19:28  Is there any derived class from CView in existence? Re: About scrollbar of CScrollView PJ Arends26-Apr-05 20:12 PJ Arends 26-Apr-05 20:12  CView is derived from CWnd and is the base class of CScrollView and CCtrlView. Since what you are asking for is non-standard behaviour I doubt there is a readily available class that does what you want, but there might be if you search long and hard enough. You said you had it working with CScrollView, just the scroll bars were giving you trouble. It shouldn't be too difficult to derive a class from CView that does what you want. Just take the parts from CScrollView that you can use, and ignore or modify the parts you can't use. "You're obviously a superstar." - Christian Graus about me - 12 Feb '03 "Obviously ???  You're definitely a superstar!!!" mYkel - 21 Jun '04 Within you lies the power for good - Use it! Honoured as one of The Most Helpful Members of 2004 Is their a easier way to make windows forms inc++ FocusedWolf26-Apr-05 5:04 FocusedWolf 26-Apr-05 5:04  Mfc is fine and all...but was just wondering. Is any method similiar to lets say c#'s way of doing things. Re: Is their a easier way to make windows forms inc++ toxcct26-Apr-05 5:53 toxcct 26-Apr-05 5:53  i don'tknow about C#, but what about creating a new dialog ? TOXCCT >>> GEII power [toxcct][VisualCalc] MFC DLL Manoj Jangid26-Apr-05 4:54 Manoj Jangid 26-Apr-05 4:54  I created a MFC Regular Shared DLL. This dll is working perfectly with VC application, but i want to access this DLL in VB application, What changes require in my dll for working in VB pls tell me Manoj

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