C / C++ / MFC

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Question about winsock... Redeemer-dk6-Oct-02 7:34 Redeemer-dk 6-Oct-02 7:34  In the Visual Basic WinSock control whenever some data is received to the computer, it goes to an event where you can then handle the data. In c++ i'm using winsock, and using the send and recv functions. My question is this: how will i know when some data is sent to my pc that i can recieve? do i have to have a thread with the recv function always running and then it runs a function whenever it recieves some data? Thanks all! -Rune Svensen Re: Question about winsock... Rickard Andersson206-Oct-02 9:31 Rickard Andersson20 6-Oct-02 9:31  recv(...) is a blocking function, that means it doesn't return untill it receives data. Well, it's up to you if you want to put it into a separete thread or not.... But I always put my recv function in a loop.... in the client I call recv just sometimes when I have to. Do you understand? Rickard Andersson@Suza Computing C# and C++ programmer from SWEDEN! UIN: 50302279 E-Mail: nikado@pc.nu Speciality: I love C#, ASP.NET and C++! Re: Question about winsock... Redeemer-dk6-Oct-02 9:47 Redeemer-dk 6-Oct-02 9:47  The thing is. I have to different instances of the program, one connects to another and they're connected. Then either of the programs can try to send a file to the other application. So i don't know which program will send the file and then i can't set up a recv function that blocks until it receives some data. So so i just create a new thread that loops the recv function and handles the data? Thanks for your help. Re: Question about winsock... Anders Molin6-Oct-02 11:02 Anders Molin 6-Oct-02 11:02  You can use asynchronous socket, but it's a bit more complicated. There should be some articles about it here on codeproject. But if you want to use recv, which is a blocking function, you can use select to chech if theres data to read... - Anders Money talks, but all mine ever says is "Goodbye!" Re: Question about winsock... Iain Clarke, Warrior Programmer7-Oct-02 5:43 Iain Clarke, Warrior Programmer 7-Oct-02 5:43  A close analogy with MFC is the CAsyncSocket class. If you inherit from it and override classes like OnReceive you should be able program in a manner more familiar to you. Good luck, Iain. Garbage Collected Framework (GCF) S van Leent6-Oct-02 4:57 S van Leent 6-Oct-02 4:57  After reading Petzold, books about Garbage Collection and looked at MSDN to much, I had the Idea of comming up with a new Framework for Windows. Goals I want to settle: - Fully Garbage Collected - Fully Object-Oriënted (Well, except the generated _tWinMain...) - Really easy to use - Thread supported Well, as you can see, these four things are the most complicated to do it all together, but it seems to me it has to be possible. A problem is that I can't do this alone, (It would take me years, I'm studying, have a job, etc...) so I need some people to help me out. I know that you guys are the best (well, most of you are), so what do you think??? If you want to join, post a message (also if you've got some Ideas). I really want to do this! Sjoerd van Leent LPCTSTR Dutch = TEXT("Double Dutch "); This has to be replaced with: OString *dutch = new OString("Double Dutch "); Re: Garbage Collected Framework (GCF) Daniel Turini6-Oct-02 5:15 Daniel Turini 6-Oct-02 5:15  S van Leent wrote: After reading Petzold, books about Garbage Collection and looked at MSDN to much, I had the Idea of comming up with a new Framework for Windows. Goals I want to settle: - Fully Garbage Collected - Fully Object-Oriënted (Well, except the generated _tWinMain...) - Really easy to use - Thread supported Well, as you can see, these four things are the most complicated to do it all together, but it seems to me it has to be possible. A problem is that I can't do this alone, (It would take me years, I'm studying, have a job, etc...) so I need some people to help me out. I know that you guys are the best (well, most of you are), so what do you think??? If you want to join, post a message (also if you've got some Ideas). I really want to do this! Sorry dude, but it has been done yet: it is called the .NET Framework. "In an organization, each person rises to the level of his own incompetence." Peter's Principle Re: Garbage Collected Framework (GCF) S van Leent6-Oct-02 7:22 S van Leent 6-Oct-02 7:22  As I was expectiong this answer, not everything in this world is based on .NET, thereby, it's not only about useability but also about some fun. LPCTSTR Dutch = TEXT("Double Dutch "); Re: Garbage Collected Framework (GCF) Mike Nordell8-Oct-02 5:35 Mike Nordell 8-Oct-02 5:35  Try googling for "Boehm GC". How we Minimize the Window Dialog in the first place? ATC6-Oct-02 3:50 ATC 6-Oct-02 3:50  Hi, I have a VC+ 6.0 application, I would like that when it is launched (run) ... it's Dialog will be Minimized immediately so the user does not bothered it ... until they want so! I did invoke CDialog::OnSysCommand(SC_MINIMIZE,SC_HOTKEY) & CWnd::OnSysCommand(SC_MINIMIZE,SC_HOTKEY) in OnInit() but it did not worked! Any one can help? Thank in-advanced, Re: How we Minimize the Window Dialog in the first place? valikac6-Oct-02 6:17 valikac 6-Oct-02 6:17  See if this solution helps. PostMessage(WM_SYSCOMMAND, SC_MINIMIZE); Kuphryn Re: How we Minimize the Window Dialog in the first place? Anonymous6-Oct-02 9:27 Anonymous 6-Oct-02 9:27  Hi Kuphryn, Thank you very much for help, it works as a I wanted! Many thanks, ATC Re: How we Minimize the Window Dialog in the first place? valikac6-Oct-02 9:34 valikac 6-Oct-02 9:34  Cool. Kuphryn Launching another dialog box in a dialog box class oRion6-Oct-02 3:35 oRion 6-Oct-02 3:35  hi, I have tried to implement a error prompt dialog box which pops up when I execute some calculations in a dialog box. I have tried to use modaless dialog but the program don't seems to stop for the corrected data from the Error Window to return before continuing the routine again. What should be a good way to have a dialog box to receive the data? By Modal dialog instead? How do I actually do that inside a dialog class calling another dialog class? Re: Launching another dialog box in a dialog box class Pavel Klocek6-Oct-02 3:56 Pavel Klocek 6-Oct-02 3:56  oRion wrote: I have tried to use modaless dialog but the program don't seems to stop for the corrected data from the Error Window to return before continuing the routine again Modeless dialog lives it's own life after it's created, handling window messages sended to him. oRion wrote: What should be a good way to have a dialog box to receive the data? By Modal dialog instead? Yes. oRion wrote: How do I actually do that inside a dialog class calling another dialog class? There is nothing special with it - DialogBox API function or CDialog::DoModal(), if you are using MFC, executes a modal dialog. You need to set the modal dialog parent to the dialog you are executing it from. They return IDOK, if the modal dialog was closed with OK. Pavel Sonork 100.15206 Re: Launching another dialog box in a dialog box class oRion7-Oct-02 5:14 oRion 7-Oct-02 5:14  oRion wrote: How do I actually do that inside a dialog class calling another dialog class? Pavel wrote: There is nothing special with it - DialogBox API function or CDialog::DoModal(), if you are using MFC, executes a modal dialog. You need to set the modal dialog parent to the dialog you are executing it from. They return IDOK, if the modal dialog was closed with OK. Thanks for the reply. : ) I am not too sure where to set the modal dialog parent to the dialog? How to reference or get a handle in the parent dialog? [IShellView2] how to remove the web view ? luc26-Oct-02 1:18 luc2 6-Oct-02 1:18  i've implemented an IShellBrowser, created an IShellView2 with CreateViewObject, but when i create a window with CreateViewWindow2 to display my files, i also get the "web view" on the left of the window. i tried to remove it with FWF_NOWEBVIEW in FOLDERSETTINGS.fFlags, but the web view is still there... how to remove it ? URL Encoder John Bosko5-Oct-02 22:37 John Bosko 5-Oct-02 22:37  Hi, Please can someone tell me, where do I get the URL Encoder for C++. Many Thanks, John Re: URL Encoder Dominik Reichl6-Oct-02 1:20 Dominik Reichl 6-Oct-02 1:20  Err... what the hell is an "URL Encoder"? Could you give an example what it should do? -Dominik Re: URL Encoder John Bosko6-Oct-02 1:22 John Bosko 6-Oct-02 1:22  Hi Dominik, Apparently I want to encode a string in C++ and then store the same in a char field. Thanks, John Re: URL Encoder Dominik Reichl6-Oct-02 1:27 Dominik Reichl 6-Oct-02 1:27  What does "encode" mean in this context? Re: URL Encoder John Bosko6-Oct-02 1:49 John Bosko 6-Oct-02 1:49  Encode would imply parsing a string with values. ex. if the string was www.yahoo.com before encryption, after encryption it would be something like www&&yahoo^com. the characters would be replaced. Re: URL Encoder Dominik Reichl6-Oct-02 1:58 Dominik Reichl 6-Oct-02 1:58  So you need a function which does the same as the function escape("") in JavaScript? I don't know any existing source which does this. But it should not be that hard to replace some characters with some other, especially if you use CString or STL strings. Re: URL Encoder John Bosko6-Oct-02 2:16 John Bosko 6-Oct-02 2:16  Yes, I need something like escape in java!!! Please can you help me out with it, I am pretty newbie in C++. Thanks Dominik, John Re: URL Encoder Dominik Reichl6-Oct-02 2:31 Dominik Reichl 6-Oct-02 2:31  The easiest way is using CStrings. Create a CString object and copy the string you want to encode in the CString. CString str; str = "www.yahoo.com"; Now, replace all the characters you want to encode. str.Replace(" ", "%20"); This would encode all spaces to the correct %20 code. Now you would have to do this for all characters... For all codes see the following sites: http://www.macromedia.com/support/flash/ts/documents/url_encoding.htm[^] http://www.blooberry.com/indexdot/html/topics/urlencoding.htm[^] http://ops.tamu.edu/nipsy/url/common_encodings.html[^] -Dominik

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