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Re: Problem with "Create a FrameWnd inside a thread" HumanOsc15-Aug-05 4:51 HumanOsc 15-Aug-05 4:51  Hello... The problem is that you create Windows inside from a worker thread which can produce unexpected situations... You shouldn't directly create and manipulate gui objects in a worker thread... Try to create and manipulate the window in the main thread... F.E.: Create custom user messages and send them to mainframe. like: #define WM_CREATEFRAME WM_USER + 200 #define WM_UPDATEFRAME WM_USER + 201 #define WM_DESTROYFRAME WM_USER + 202 in your worker thread: void CMainFrame::workProc(LPVOID data) { // main window CMainFrame *fr = static_cast<cmainframe*>(data); ::PostMessage(fr->m_hWnd,WM_CREATEFRAME,NULL,NULL); while(anyThing) { // do a lot of calculations ::PostMessage(fr->m_hWnd,WM_UPDATEFRAME,NULL,NULL); ::Sleep(10); } ::PostMessage(fr->m_hWnd,WM_DESTROYFRAME,NULL,NULL); } The mainframe process the custom messages and do the work on gui objects. Best regards from germany Re: Problem with &quot;Create a FrameWnd inside a thread&quot; Stephan Pilz15-Aug-05 20:08 Stephan Pilz 15-Aug-05 20:08  Thank you for the answer, the idea is good but it doesn'nt solve the problem. Sh*t. In my case I call SendMessage instead of PostMessage, because the thread should wait until window creation process is finished. If I debug and stop execution before I call _endthread() I see my window in the tasklist. After _endthread() window is killed. Greetings back from germany to germany Stephan Re: Problem with &quot;Create a FrameWnd inside a thread&quot; Stephan Pilz15-Aug-05 20:52 Stephan Pilz 15-Aug-05 20:52  Yo baby yo baby yo It works. Your solution was good. I had a mistake in the MessageMap. Thanks to all for helping Stephan Re: Problem with &quot;Create a FrameWnd inside a thread&quot; Sheng Jiang 蒋晟15-Aug-05 15:49 Sheng Jiang 蒋晟 15-Aug-05 15:49  I don't have any problem with MFC dialogs. Maybe you need to look into the message pump in CWinThread::Run to see what happens when a main window of an MFC thread closes. http://blog.joycode.com/jiangsheng http://blog.csdn.net/jiangsheng Command what is yours Conquer what is not ---Kane Re: Problem with &quot;Create a FrameWnd inside a thread&quot; Stephan Pilz15-Aug-05 20:14 Stephan Pilz 15-Aug-05 20:14  Thank you for the answer, To try this, I must rewrite my code, because I don't use CWinThread now. I'm from "old school" like using _beginthread () with global Threadfunctions. And so a function should terminate intern via _endthread() (extern TerminateThread()). I think, here is my problem, because the documentation describes, that _endthread() will clear up all objects from stack (and may be from heap too) they are created inside the thread. I will try your sugestion with the message pump. May be I can see some mistakes. Stephan Re: Problem with &quot;Create a FrameWnd inside a thread&quot; Sheng Jiang 蒋晟15-Aug-05 20:20 Sheng Jiang 蒋晟 15-Aug-05 20:20  MFC thread state is needed by MFC objects. You need begin the thread with AfxBeginThread. http://blog.joycode.com/jiangsheng http://blog.csdn.net/jiangsheng Command what is yours Conquer what is not ---Kane Re: Problem with &quot;Create a FrameWnd inside a thread&quot; Stephan Pilz15-Aug-05 20:51 Stephan Pilz 15-Aug-05 20:51  Yo baby yo baby yo It works. The solution of HumanOsc was good. I had a mistake in the MessageMap. Thanks to all for helping Stephan Re: Problem with &quot;Create a FrameWnd inside a thread&quot; HumanOsc16-Aug-05 1:22 HumanOsc 16-Aug-05 1:22  Hello again... My solution is based on the great Articel from Joseph M. Newcomer: http://www.codeproject.com/threads/usingworkerthreads.asp[^] This is a very nice Introduction about worker threads. Be carefull about SendMessage, it can also produce unexpected situations like a deadlock from your app... Always prever the use of PostMessage to provide a safe gui access. But Sometimes it's recommend (before or after the end of a worker thread) to get sure thats no (old) messages exists in the message queue. In this situations use PeekMessage, GetMessage and DispatchMessage in main thread to remove (process) all old Message from Queue... Best regards... Location of strcmp rottencheese15-Aug-05 2:17 rottencheese 15-Aug-05 2:17  I am searching for the location of the strcmp function so that i may be able to dynamically load it. In which dll does it reside? In which dll's do c-runtime libraries reside in general? Re: Location of strcmp Chris Losinger15-Aug-05 2:28 Chris Losinger 15-Aug-05 2:28  rottencheese wrote: In which dll's do c-runtime libraries reside in general? MSVCRT.DLL Cleek | Image Toolkits | Thumbnail maker Re: Location of strcmp Tim Smith15-Aug-05 3:40 Tim Smith 15-Aug-05 3:40  If you are programming in C/C++, you would be hard pressed to not already have that DLL loaded (unless you link statically). Tim Smith I'm going to patent thought. I have yet to see any prior art. Trial Licensing Developer567815-Aug-05 2:14 Developer5678 15-Aug-05 2:14  Hello, I need to provide a trial license for my application which should expire after a predefined expiry date. How should I go about doing the time comparison so that it can not be tampered by changing the system date. Thanks in Advance. Re: Trial Licensing Chris Losinger15-Aug-05 2:23 Chris Losinger 15-Aug-05 2:23  you could try to connect to the NIST[^] NTP servers, to get the date/time. Cleek | Image Toolkits | Thumbnail maker Re: Trial Licensing Developer567815-Aug-05 2:48 Developer5678 15-Aug-05 2:48  Thanks, but this is a standalone application and can not rely on getting any information from anywhere outside the system. Re: Trial Licensing khan++15-Aug-05 2:25 khan++ 15-Aug-05 2:25  You can write the current system time at application exit as Exit-Time. When the user opens application the next time, it should compare the current time with the Exit-Time. If the current time is less than the Exit-Time, just exit the application or whatever. this is this. Re: Trial Licensing Developer567815-Aug-05 2:44 Developer5678 15-Aug-05 2:44  But the user can reset the system time to an earlier time before exiting the application and use the application for ever. Re: Trial Licensing khan++15-Aug-05 2:52 khan++ 15-Aug-05 2:52  I guess you can also write the current time down every five minutes etc, after comparing it with the stored time. And I am about to logout for the day. this is this. Re: Trial Licensing BlackDice15-Aug-05 3:12 BlackDice 15-Aug-05 3:12  how about instead of letting it run for a certain amount of time, you let them use it a certain number of times. I think that's easier. My articles www.stillwaterexpress.com BlackDice Re: Trial Licensing Developer567815-Aug-05 19:50 Developer5678 15-Aug-05 19:50  That would be easier. But the users require trial periods based on time. Re: Trial Licensing David Crow15-Aug-05 3:14 David Crow 15-Aug-05 3:14  See here. "One must learn from the bite of the fire to leave it alone." - Native American Proverb Re: Trial Licensing Developer567815-Aug-05 19:46 Developer5678 15-Aug-05 19:46  Thanks for the link. This works fine once the license expires. But, the user can work by changing the system date back to an allowed date before starting the application so that he never gets the license expired message. This way i think he can use the application for ever. Re: Trial Licensing David Crow16-Aug-05 2:54 David Crow 16-Aug-05 2:54  Check the article again. It works even if the user alters the system date. Read through the code and you'll quickly see how this is done. "One must learn from the bite of the fire to leave it alone." - Native American Proverb Re: Trial Licensing Bob Stanneveld15-Aug-05 6:07 Bob Stanneveld 15-Aug-05 6:07  Hello, You could poll a server for the date / time and compare with that. You have to get around the unavailable internet connection problem though. Behind every great black man...             ... is the police. - Conspiracy brother Blog[^] How to show animation(GIF files)? eli1502197915-Aug-05 1:51 eli15021979 15-Aug-05 1:51  Hi, I would like to show animation in my dialog. I have the GIF file but I don't know how to show it. Can anyone help me? BTW - Does anyone know where can i find the animation which Microsoft shows when files are being transffered from one place to another? Regards, Eli Re: How to show animation(GIF files)? khan++15-Aug-05 2:12 khan++ 15-Aug-05 2:12  http://www.codeproject.com/bitmap/pictureex.asp[^] Hope that helps. this is this.

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