C / C++ / MFC

FirstPrevNext

Re: Need help wif toggling check box peterchen12-Oct-03 23:48 peterchen 12-Oct-03 23:48  If you give it the BS_AUTOCHECKBOX style, it toggles automatically when you click. otherwise, as already said, it's internally a BUTTON class, you can query and change the check state with BM_SETCHECK and BM_GETCHECK (or CButton::SetCheck, GetCheck) "Vierteile den, der sie Hure schimpft mit einem türkischen Säbel." sighist | Agile Programming | doxygen how to read unicode file YaronNir12-Oct-03 23:13 YaronNir 12-Oct-03 23:13  Hi all, I have the file strings.mc (from the message compiler). i want to read it using CStdioFile class.... performing : CStdioFile file(szFile,CFile::modeRead); char buff[MAX_PATH]; do { file.ReadString(buff,MAX_PATH); } while (buff != NULL); doesn't work so good..... can any1 help? thanks in advanced Yaron Ask not what your application can do for you, Ask what you can do for your application Re: how to read unicode file Anand Paranjpe12-Oct-03 23:36 Anand Paranjpe 12-Oct-03 23:36  Hi, add "_UNICODE" in project/settings/C++/general/Preprocessor definations. CStdioFile file; CString str; while( file.ReadString(str)) { //Do something } if u get any linking error with libraries starting or ending with "u" (e.g. uafxcwd.lib), then u need to install unicode support for VC ide on ur machine. The chosen One Re: how to read unicode file YaronNir12-Oct-03 23:47 YaronNir 12-Oct-03 23:47  thanks Ask not what your application can do for you, Ask what you can do for your application Re: how to read unicode file Anthony_Yio13-Oct-03 0:45 Anthony_Yio 13-Oct-03 0:45  You need to take into consideration using TCHAR instead of char cause all the charaters in your program are in two bytes. Sonork 100.41263:Anthony_Yio MFC / ActiveX integration error przemm12-Oct-03 22:58 przemm 12-Oct-03 22:58  Hello, (VC++ 6 SP5) I have a simple MFC dialog-based app with ActiveX control in it. This is a control written by friend of mine. VC created a nice wrapper class for me. Control displays just fine during execution. THE PROBLEM: When I try to access a method from the wrapper class, the program compiles BUT during execution MFC throws exception : Wrong number of parameters. BUT THE NUMBER OF PARAMETERS IS GOOD!! Wrapper for the method has a good prototype etc. This method can be invoked in ActiveX Control Test Container and in some other 3rd party tool. So... what's going on?? The message pops out during Debug. In Release, no message, no action. Thanks in advance for any input Przem BTW. Original method prototype: BOOL CPrismEdCtrl::LinkReport(long report_handle) Wrapper class method prototype: BOOL CPrismEd::LinkReport(long REPORT_HANDLE) ---------------------------- "Fate it'seems is not without a sense of irony" debugging layered service providers andy dungey12-Oct-03 22:39 andy dungey 12-Oct-03 22:39  hi, i am hoping someone can give me some hints as to how to debug a layered service provider. I have got microsoft's latest sample code from the SDK and it's up and running. i really just want to play around with it to see how it works. The problem comes because after i have compiled and loaded in the LSP dll using the install exe, all the network services are using it even after i uninstall it. this means i can't recompile and overwrite the old dll with a new one because my computer is still using the old one. i can reboot my machine to free it up and then install the new dll but i don't really want to reboot everytime i want to test alterations to my code. Can anyone help me come up with a way of developing my LSP which avoids this problem? many thanks andy Difference btw MBCS and Unicode? fynox12-Oct-03 22:32 fynox 12-Oct-03 22:32  Hi, I'm a little confused... Under MBCS the following code works... --------------------------------------------------------------------- main_doc->SelectByID(au2B(CEditUPara::UComp),au2B("COMPONENT"), 0, 0, 0, &retval); main_doc->ShowComponent2 ( ); ===================================================================== But under Unicode, i needed to do this for a particular part of the code... --------------------------------------------------------------------- CString type = "COMPONENT"; BSTR ucomp = CEditUPara::UComp.AllocSysString(); BSTR Type = type.AllocSysString(); main_doc->SelectByID(ucomp,Type, 0, 0, 0, &retval); main_doc->ShowComponent2 ( ); ===================================================================== The weird thing is that, --------------------------------------------------------------------- main_doc->IParameter(au2B(Diameter), &dim ); ===================================================================== still works in some other parts of the code...I can compile and run it successfully...Why is this so?? Thanks! Re: Difference btw MBCS and Unicode? Anand Paranjpe12-Oct-03 23:05 Anand Paranjpe 12-Oct-03 23:05  In MBCS, a 'character' as the user thinks of it may be one or two bytes and in Unicode, it is two bytes. More info regarding conversion from Unicode to mbcs refer MSDN with key as "MBCS/Unicode conversion" The chosen One Re: Difference btw MBCS and Unicode? Anthony_Yio13-Oct-03 1:05 Anthony_Yio 13-Oct-03 1:05  In UNICODE, all the characters are in two bytes. (english characters, chinese characters, kanji characters, vietnamese character, etc ) In MBCS, english characters A-Z , a-z are in single bytes, but some characters like numeric 1- 10, chinese characters, kanji characters, vietnamese character, etc should be treated as two bytes or else you will not be able to read it properly. You need a in depth study to understand it. For your case as I assume you do not know about the languages like Chinese, Kanji, and etc. I suggest you to stick to UNICODE. Just my suggestion. Hope this helps. Sonork 100.41263:Anthony_Yio Re: Difference btw MBCS and Unicode? Michael Dunn13-Oct-03 4:37 Michael Dunn 13-Oct-03 4:37  Without knowing what those macros do (au2b??) it's hard to say, but start here to learn about the different character sets: The Complete Guide to C++ Strings, Part I - Win32 Character Encodings[^] The Absolute Minimum Every Software Developer Absolutely, Positively Must Know About Unicode and Character Sets (No Excuses!)[^] --Mike-- Ericahist | CP SearchBar v2.0.2 | Homepage | RightClick-Encrypt | 1ClickPicGrabber #include "witty-quote.h" Re: Difference btw MBCS and Unicode? fynox13-Oct-03 16:28 fynox 13-Oct-03 16:28  I see, au2B is defined like this, #define au2B( STUFF ) auT(STUFF) #define au2B( STUFF ) (LPTSTR)((LPCTSTR)STUFF) but i'm still not sure what that means...and why there are 2 definitions... Thanks for ur help guys... 100% CPU Usage problem in multithreading samhita12-Oct-03 22:32 samhita 12-Oct-03 22:32  I am uploading mltiple files at a time using FTP protocol. For this i am using multithreading. Each file is transferred through a different thread. But when i start more than one thread my CPU usage shoots up to 100 % and then everything becomes very slow. and sometimes the application hangs. What might be the reason for this??? Re: 100% CPU Usage problem in multithreading jmkhael12-Oct-03 22:49 jmkhael 12-Oct-03 22:49  are u looping somewhere? hint Sleep Papa while (TRUE) Papa.WillLove ( Bebe ) ; Re: 100% CPU Usage problem in multithreading Anand Paranjpe12-Oct-03 22:51 Anand Paranjpe 12-Oct-03 22:51  hi, What kind of syncronization objects u r using? Whats the priority of threads u have set? I think u have posted this question few days back. Did u check with Trace() function as per suggested by somebody. The chosen One Re: 100% CPU Usage problem in multithreading samhita13-Oct-03 2:51 samhita 13-Oct-03 2:51  Synchronization object used is Critical section and priority of all the threads is Normal. There is no looping. I have removed all the infinite loops. Well to communicate with the main thread i am using SendMessage and not PostMessage. Is this the culprit??? As it is recommended to use PostMessage. I have to pass some structure and if i use PostMessage then that sturcture passed to the PostMessage function goes out of scope. So i have to use SendMessage for that. If there is any other alternative to achieve this. Re: 100% CPU Usage problem in multithreading jhwurmbach13-Oct-03 3:19 jhwurmbach 13-Oct-03 3:19  samhita wrote: SendMessage and not PostMessage. Is this the culprit??? Sure it is - You can't SendMessage from a thread (as you have seen demonstrated ) samhita wrote: [...]that sturcture passed to the PostMessage function goes out of scope. Construct that structure on the heap (new ...). (Your whole process with all threads shares one memory space) Then send the address of that struct with PostMessage and do not delete it in your calling function. With the call to PostMessage, you transfer the ownership to your message handler. After use (in your message-handler), you call delete on the struct, so as not to leak memory. Hope this helps Who is 'General Failure'? And why is he reading my harddisk?!? Re: 100% CPU Usage problem in multithreading Michael Dunn13-Oct-03 4:40 Michael Dunn 13-Oct-03 4:40  jhwurmbach wrote: You can't SendMessage from a thread Huh? Of course you can. --Mike-- Ericahist | CP SearchBar v2.0.2 | Homepage | RightClick-Encrypt | 1ClickPicGrabber The inmates are fairly civilised in the Lounge (unless there's a Sergio about, when it does tend to get rather messy). Re: 100% CPU Usage problem in multithreading jhwurmbach13-Oct-03 4:46 jhwurmbach 13-Oct-03 4:46  Michael Dunn wrote: [Sendmessage from a thread] But then you have to do a lot of synchronisation yourself. Who is 'General Failure'? And why is he reading my harddisk?!? who knows shared memory of command window? includeh1012-Oct-03 22:10 includeh10 12-Oct-03 22:10  after execute an app by CreateProcess() function, we can establish communication pipe between the app and its owner (another app). the owner, in some way, is a "command window". now i want to use shared memory between the 2 apps. the Q comes from java jdb.exe (an app). when i use dos command window to execute jdb.exe, they communicate properly. but when i use my app to execute jdb.exe, they can't communicate each other. the reason is that the commanication must be on shared memory, not pipe (ip is possible OK but not in our case). do you have any idea that how dos command window use sheared memory or how an user app use shared memory whth other apps? thanks in advance. includeh10 Re: who knows shared memory of command window? Anthony_Yio13-Oct-03 1:13 Anthony_Yio 13-Oct-03 1:13  There is an article by Xiangyang Liu which explain the communication between Java process and windows but it is using IP. http://www.codeproject.com/threads/bridgewinjava.asp[^] How about to use clipboard? Sonork 100.41263:Anthony_Yio Removing icon from header Chernobog112-Oct-03 21:51 Chernobog1 12-Oct-03 21:51  Hi, can u please tell me how to remove icon from header in CListCtrl ? Thanks. Re: Removing icon from header Anand Paranjpe12-Oct-03 22:45 Anand Paranjpe 12-Oct-03 22:45  hi, IN LVCOLUMN structure, give blank image id. This should work. Chill Anand The chosen One Re: Removing icon from header Chernobog112-Oct-03 23:34 Chernobog1 12-Oct-03 23:34  Thx but text is not formated right , there is a space between text and border Re: Removing icon from header Anand Paranjpe12-Oct-03 23:50 Anand Paranjpe 12-Oct-03 23:50  What space u c is not space it is blank image. Live with it if possible The chosen One

Last Visit: 31-Dec-99 18:00     Last Update: 7-May-24 15:09 Refresh ᐊ Prev1...14147141481414914150141511415214153141541415514156 Next ᐅ

General    News    Suggestion    Question    Bug    Answer    Joke    Praise    Rant    Admin   

Use Ctrl+Left/Right to switch messages, Ctrl+Up/Down to switch threads, Ctrl+Shift+Left/Right to switch pages.