C / C++ / MFC

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Re: Redirecting text to edit control Janine23-Jul-02 22:06 Janine 23-Jul-02 22:06  I do have a choice, but if I don't use printf, I have a very long way to go... I think that redirecting would be an easier way. -Janetta Re: Redirecting text to edit control Christian Graus23-Jul-02 22:25 Christian Graus 23-Jul-02 22:25  Janetta wrote: I do have a choice, but if I don't use printf, I have a very long way to go... How so ? Janetta wrote: I think that redirecting would be an easier way. I dunno - I reckon the stream is about a half hours work. I've been meaning to do an article on writing your own streams anyhow - how soon do you need this ? Christian come on all you MS suckups, defend your sugar-daddy now. - Chris Losinger - 11/07/2002 Re: Redirecting text to edit control Janine24-Jul-02 0:01 Janine 24-Jul-02 0:01  Christian Graus wrote: Janetta wrote: I do have a choice, but if I don't use printf, I have a very long way to go... How so ? Actually I think that it would't be that hard after all. There is some parts of the source code, that I can't change, but I think that there is no printing in those parts. Would I be able to use fprintf with my own stream? Those examples just seemed pretty easy, but maybe it's not that simple, especially in this case. Christian Graus wrote: I've been meaning to do an article on writing your own streams anyhow - how soon do you need this ? In a couple of days, but that kind of article would propably be useful anyway! -Janetta Re: Redirecting text to edit control Christian Graus24-Jul-02 2:28 Christian Graus 24-Jul-02 2:28  Janetta wrote: Would I be able to use fprintf with my own stream? No, a stream is safer and more elegant than that. cout is a stream. You can do this MyEditStream << "This text will go to my window along with the number " << 7 << " and any other type I choose to define an operator for"; streams *rule* Janetta wrote: In a couple of days, but that kind of article would propably be useful anyway! If I post the article 24 hours from when this reply went up, will that do you ? Christian come on all you MS suckups, defend your sugar-daddy now. - Chris Losinger - 11/07/2002 Re: Redirecting text to edit control Janine24-Jul-02 2:42 Janine 24-Jul-02 2:42  Christian Graus wrote: No, a stream is safer and more elegant than that. cout is a stream. Actually I thought that the first parameter of fprintf was stream, but I guess it's not. I know more about streams, but these printf:s and so on I don't. Part of this program has to be written in C, so... Christian Graus wrote: If I post the article 24 hours from when this reply went up, will that do you ? You are fast. That sounds fine! -Janetta Re: Redirecting text to edit control Christian Graus24-Jul-02 2:45 Christian Graus 24-Jul-02 2:45  Janetta wrote: Part of this program has to be written in C, so... Streams are c++ only, does that make it not useful to you ? Janetta wrote: You are fast. That sounds fine! Like I said, about a half hour coding. Add an hour for the text, I'll knock it over tomorrow night as a warmup to the work I want to do for myself. Christian come on all you MS suckups, defend your sugar-daddy now. - Chris Losinger - 11/07/2002 Re: Redirecting text to edit control Janine24-Jul-02 3:05 Janine 24-Jul-02 3:05  Christian Graus wrote: Streams are c++ only, does that make it not useful to you ? No. I have to separate some parts anyway with #ifdef WIN32. I prefer C++, so I'll use it as often as possible. Christian Graus wrote: Like I said, about a half hour coding. Add an hour for the text, I'll knock it over tomorrow night as a warmup to the work I want to do for myself. Thanks a lot! -Janetta Re: Redirecting text to edit control Christian Graus25-Jul-02 2:39 Christian Graus 25-Jul-02 2:39  I think I didn't make my deadline, but the article is up. It contains a header file that you can include, and the example code shows how to use it to stream into an edit box. The project uses MFC, but the stream itself does not ( I did not know if you used MFC, so I did not ). Christian come on all you MS suckups, defend your sugar-daddy now. - Chris Losinger - 11/07/2002 Re: Redirecting text to edit control Janine25-Jul-02 3:27 Janine 25-Jul-02 3:27  Christian Graus wrote: I think I didn't make my deadline, but the article is up. Well, it's a good thing that we're not at school and I'm not your teacher I read the article and now I'll go through the code. The article seemed very useful, not only for this case, but also for the future. Thank you once again! -Janetta Re: Redirecting text to edit control Daniel Lohmann23-Jul-02 23:18 Daniel Lohmann 23-Jul-02 23:18  To redirect printf is not that easy. I tried it the time I was writing the article CEditLog - fast logging into an edit control with cout (which should also be quite useful to you), but failed. The internal structure of CRT streams (FILE*) is undocumented and to get it out of the sources is quite a long way. However, If you have all sources available, the solution could be quite easy: 1) Write a printf-compatible function that prints out the output into the edit: int printf_edit( const char* pszFormat, ... ) { ... // Write buffer to EditLog, maybe via std::cout } 2) Add the following definitions to your stdafx.h (or in front of every .cpp file): #undef printf #define printf printf_edit and recompile the whole thing. -- Daniel Lohmann http://www.losoft.de Re: Redirecting text to edit control Janine24-Jul-02 2:24 Janine 24-Jul-02 2:24  Your article was very useful! I think I'm able to solve the problem now. Thanks! -Janetta Re: Redirecting text to edit control Mandalay24-Jul-02 2:02 Mandalay 24-Jul-02 2:02  Console is application , but application can create windows (: there are ( on this site ) some exapmles, how to create windows from console (: ---------------------------- my eng is bad, so am i .. (: Spreadsheet Programming Anonymous23-Jul-02 20:37 Anonymous 23-Jul-02 20:37  I want to program a simple spreadsheet program, where can I find any resource, like source code and data format. Especially the format, what are the basic elements should a spreadsheet file contains? Re: Spreadsheet Programming NormDroid23-Jul-02 22:18 NormDroid 23-Jul-02 22:18  Stingray offer a product which is essentially MS Excel 2000. You get the source code and can compile to lib or ctrl. Alternative you need to start of with a Grid Clickerty and you'll need a parse and expression engine and if you want to support VB script you'll need a VB Scripting engine. Normski. - the next bit of code is self modifying ... jmp 0xCODE Change process security context Don Miguel23-Jul-02 20:35 Don Miguel 23-Jul-02 20:35  I have a ISAPI extension, which I suppose run in security account of IUSR_MACHINENAME. For accessing a database located on another server, I must change the user to an account which has rights in database. Is this possible? I know is possible to "create a process as user" but I don't know about changing the user during process running. If I'm on a wrong way of thinking, which are the possibilities? Regards, Don Re: Change process security context Daniel Lohmann23-Jul-02 23:23 Daniel Lohmann 23-Jul-02 23:23  It is not possible to change the security context of a running process. However, you could use impersonation to change the context of your current thread, which is actually what you want to do For this you have to get a proper impersonation token from somewhere. You can get such a token via some IPC mechanisms (like NamedPipes, RPC, DCOM) or by calling LogonUser(). However, I doubt that IUSR_MACHINENAME has the necessary privileges to call LogonUser(). -- Daniel Lohmann http://www.losoft.de Re: Change process security context Don Miguel23-Jul-02 23:44 Don Miguel 23-Jul-02 23:44  Thanks Daniel, You give me some good ideeas, with LogonUser(). If IUSR_... has not enough ritghts, I'll include it in Administrators group, and maybe will work. The other ideea, to Daniel Lohmann wrote: get such a token via some IPC mechanisms I simply don't understand: from where to request the token?? With who shall I communicate via IPC? ... and what is this "Impersonation" means??? Thanks again. Re: Change process security context Daniel Lohmann24-Jul-02 3:42 Daniel Lohmann 24-Jul-02 3:42  Don Miguel wrote: You give me some good ideeas, with LogonUser(). If IUSR_... has not enough ritghts, I'll include it in Administrators group, and maybe will work. Uh, oh - I would double think about that. It's the sense of special IUSR_xxx accounts that they are low privileged and therefore your Inet apps do open a big security hole. I don't have much knowledge about all this IIS stuff, but maybe you could configure it to run your ISAPI in another user context than IUSR_xxx. That would be much better, because no other extensions are affected. -- Daniel Lohmann http://www.losoft.de Pass BYTE Array from VB to ATL COM Anonymous23-Jul-02 20:04 Anonymous 23-Jul-02 20:04  I've a COM object in VC++ that has setData(PBYE* pdata, int nsize) function. What's the equivalent of it in IDL, so in VB it can pass the data to the COM. Moreover, what's the way VB pass the data to it ? Re: Pass BYTE Array from VB to ATL COM Christian Graus23-Jul-02 20:22 Christian Graus 23-Jul-02 20:22  what is PBYE ? If you want to pass a string into COM it will need to be a BSTR. VB will convert a string literal or value for you, AFAIK. Christian come on all you MS suckups, defend your sugar-daddy now. - Chris Losinger - 11/07/2002 Re: Pass BYTE Array from VB to ATL COM Anonymous23-Jul-02 20:39 Anonymous 23-Jul-02 20:39  Sorry, it should be PBYTE (in C++, a pointer to byte). I'm not going to pass String values, I want to pass binary data to an COM object. How to get properties of control. Raman Chilukuri23-Jul-02 19:16 Raman Chilukuri 23-Jul-02 19:16  Dear friends, How to get properties of any control ie created by any application (not window styles, extended styles) eg: Delphi. waiting for reply Thanks, Raman. How can I do it in Mscomm control? glinda23-Jul-02 16:29 glinda 23-Jul-02 16:29  I want to make a serial port communication program. I define a STRUCT variable struct _COMM_PACK { char sID[PACK_ID_LEN]; BYTE cCmdCode; UINT nVerifySum; int nDataLen; BYTE cData[MAX_DATA_LEN]; }aSendPack; and want to send 'aSendPack'in the Mscomm control-comm like: comm.SetOutput(aSendPack); but the SetOutput need a VARIANT variable how can I do that? thanx! Re: How can I do it in Mscomm control? NormDroid23-Jul-02 22:24 NormDroid 23-Jul-02 22:24  ! DONT use the MSCOMM control ! If you have to one would... aSendPack var; ZeroMemory(&var,sizeof(var)); var.cCmdCode = 0x0100; etc. etc..... and finally comm.SetOutput((char*) &var); Normski. - the next bit of code is self modifying ... jmp 0xCODE How to Add Start menu shortcut in Setup program a3gupta23-Jul-02 15:22 a3gupta 23-Jul-02 15:22  Hello, I am using Installshield for VC++ 6.0 to build a setup program for my program. I was wondering how can I add a shortcut in the startmenu for my programs exe file in the start menu. Right now .. I am using the follwing code to make the icon in the startmenu svPath = TARGETDIR ^ "TDMS2000.exe"; LongPathToQuote ( svPath , TRUE ); AddFolderIcon (FOLDER_PROGRAMS^SHELL_OBJECT_FOLDER , "TDMS2000" , svPath , "" , "" , 0 , "" , REPLACE ); But there is a problem with this code. My program needs a .dat file to start that resides in the same directory as the exe file. So when I follow the link created in my start meny using the code above .. the program fails to see that .dat file. When I create a shortcut manually and place it in the start menu .. the program works file. I will really appreciate any solution to this problem. Thanks! Sincerely, Anjum.

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