C / C++ / MFC

FirstPrevNext

Re: Updating Messages from threads MarkPQ6-Mar-02 12:23 MarkPQ 6-Mar-02 12:23  Thanks Jonathan, really appreciate the help! I had a bit of a lightbulb moment yesterday where it all clicked and started making a bit of sense! I found out that by casting (LPVOID)this and passing it to my thread, I could access the m_hWnd member of the object that started the thread and post the message like that. I knew that was probably not the best or safest way to do it either, and my custom event message isnt as neat as yours so that's a great help! Thanks again! -Mark Re: Updating Messages from threads MarkPQ6-Mar-02 12:35 MarkPQ 6-Mar-02 12:35  Just one Quick Question about PostMessage though . . . What's the difference between WPARAM and the LPARAM?? I see they are both 32bit message parameters, but cant see any significant difference? Are there any restrictions on the use of either of them? Thanks -Mark Re: Updating Messages from threads Jonathan Craig7-Mar-02 5:04 Jonathan Craig 7-Mar-02 5:04  In Win32 there is no difference. In Win16 (Windows 3.1) the WPARAM was 16 bit and LPARAM was 32 bit. There are no restrictions on using them. The general rule is that WPARAM is use more for passing numbers and LPARAM is for passing address values. As above in Win32 both are the same size and can be use interchangeably. But in Win64? Will WPARAM be 32 bit and LPARAM be 64 bit? Something to keep in mind... Jonathan Craig www.mcw-tech.com Currency Data Type in Visual C++ 4-Mar-02 16:49 4-Mar-02 16:49  What is the best way to represent Currency/Money values (aside from COleCurrency) with higher precision? This is particulary usefull in countries like Indonesia where US$1 = appx. 8000-9000 Rupia where higher precision is needed. In VB, it has the Currency data type. In Visual C++, how do our expert guys represent it? Thanks... Re: Currency Data Type in Visual C++ alex.barylski4-Mar-02 17:35 alex.barylski 4-Mar-02 17:35  According to MSDN: The long double data type (80-bit, 10-byte precision) is mapped directly to double (64-bit, 8- byte precision) in Windows NT and Windows 95. The VB currency is a 8 byte 64 bit I think...so this is even better. "An expert is someone who has made all the mistakes in his or her field" - Niels Bohr Re: Currency Data Type in Visual C++ Tim Smith5-Mar-02 2:08 Tim Smith 5-Mar-02 2:08  Currency is a 64 bit signed integer scaled by 10,000. So, 1 dollar would be 10000. 50 USA cents (half a dollar) would be 5000. Tim Smith I know what you're thinking punk, you're thinking did he spell check this document? Well, to tell you the truth I kinda forgot myself in all this excitement. But being this here's CodeProject, the most powerful forums in the world and would blow your head clean off, you've got to ask yourself one question, Do I feel lucky? Well do ya punk? VC 6++ & ActiveX iltallman4-Mar-02 16:40 iltallman 4-Mar-02 16:40  Does anyone know what the fix is for building MFC ActiveX components on VC++ 6.0 on WinME? I have tried to build a basic component on Win98/NT and ME and cannot get it to work on ME - It works fine on NT & 98. It does not get past the registration point sometimes or it also hangs on coping some licence file which I assume is the activeX .LIC ?. I have the lastest SP for VC++ 6.0. Mike Multithreading differences between NT (2000, XP) and 98 (95, Me) MattW4-Mar-02 16:00 MattW 4-Mar-02 16:00  I have two multithreaded applications the runs perfectly in NT, 2000 and XP, but when I port it to 98 they die. The first has no user interface, and for some reason ends up in a deadlock, where half the threads are stuck in the PumpMessage loop, and the other half are sleeping. None of the threads (except the main thread) have any windows. The secondary threads that are stuck pumping come from CSockets. As I said, this has worked fine on NT based kernels. The second program throws a page fault in Kernel32 or quits out of all the threads with a result code of -1. Unfortunately, the VC++ debugger won't trace to the line (or area) that is causing the problem. Does anyone know what the difference is that would cause such problems? Thanks. Re: Multithreading differences between NT (2000, XP) and 98 (95, Me) Tim Smith4-Mar-02 16:00 Tim Smith 4-Mar-02 16:00  Ten bucks you are using an API not supported on 9x. Tim Smith I know what you're thinking punk, you're thinking did he spell check this document? Well, to tell you the truth I kinda forgot myself in all this excitement. But being this here's CodeProject, the most powerful forums in the world and would blow your head clean off, you've got to ask yourself one question, Do I feel lucky? Well do ya punk? Re: Multithreading differences between NT (2000, XP) and 98 (95, Me) MattW5-Mar-02 5:16 MattW 5-Mar-02 5:16  Depends can't find anything. Do you have a suggestion on how to determine this? Re: Multithreading differences between NT (2000, XP) and 98 (95, Me) Nish Nishant4-Mar-02 16:15 Nish Nishant 4-Mar-02 16:15  MattW wrote: The secondary threads that are stuck pumping come from CSockets Bad idea, in my opinion. CSocket[not thread safe] misbehaves in mutlti-threaded apps. Nish It's seven o'clock On the dot I'm in my drop top Cruisin' the streets - Oh yeah I got a real pretty, pretty little thing that's waiting for me Re: Multithreading differences between NT (2000, XP) and 98 (95, Me) MattW5-Mar-02 5:17 MattW 5-Mar-02 5:17  If you implement CSocket correctly you can safely use it in multithreaded apps. This is actually the easiest way to set up a server that can respond to multiple clients at the same time. I have had no problems with this in NT. Re: Multithreading differences between NT (2000, XP) and 98 (95, Me) Derek Waters4-Mar-02 16:39 Derek Waters 4-Mar-02 16:39  I don't know about the first program, but in the second, you're not passing NULL as the last parameter of CreateThread() are you? This is supported on NT etc. (after all, why do you need the thread id, when you get the thread handle) but causes a kernel error in 95/98/Me. ------------------------ Derek Waters derek@lj-oz.com Re: Multithreading differences between NT (2000, XP) and 98 (95, Me) MattW5-Mar-02 5:18 MattW 5-Mar-02 5:18  I'm using AfxBeginThread which doesn't have this parameter: m_pThread = AfxBeginThread(SequenceThread,this,THREAD_PRIORITY_HIGHEST,0,CREATE_SUSPENDED); It is weird though that 98 generates negative thread numbers (as seen in the debugger)... Convert .OBJ -> .LIB 4-Mar-02 14:54 4-Mar-02 14:54  Which command can convert .obj to .lib? This is simple but i forgot it. Many Thanks Re: Convert .OBJ -> .LIB alex.barylski4-Mar-02 15:25 alex.barylski 4-Mar-02 15:25  I didn't even know of a conversion utility that did this...? I would specify Win32 static library in the New dialog. This tells vc++ that the output of compilation will be a lib file rather than executable. Cheers! "An expert is someone who has made all the mistakes in his or her field" - Niels Bohr Re: Convert .OBJ -> .LIB 4-Mar-02 15:35 4-Mar-02 15:35  Thanks for you reply. My situation is that the .obj file is not produced by myself. it's a commercial package which i must include into my project. This package, actually, is not big at all, it's only 28KB. however, I only user no more than 3 function in the package, Therefore, convert this .obj to .lib do reduce the size of my application. Cheers. Re: Convert .OBJ -> .LIB Nish Nishant4-Mar-02 15:32 Nish Nishant 4-Mar-02 15:32  You cannot convert just about any obj file to lib!!! Nish It's seven o'clock On the dot I'm in my drop top Cruisin' the streets - Oh yeah I got a real pretty, pretty little thing that's waiting for me Re: Convert .OBJ -> .LIB 4-Mar-02 16:03 4-Mar-02 16:03  I think he's looking for the lib utility. You can use this to combine object files into a static library. Its been a long time since I've created a static library for anything. Re: Convert .OBJ -> .LIB alex.barylski4-Mar-02 17:30 alex.barylski 4-Mar-02 17:30  Nish [BusterBoy] wrote: You cannot convert just about any obj file to lib!!! Huh...Nish i'm missing something here... Just about doesn't seem right...if i'm wrong correct me...if i'm right tell me too...cuz i'm gonna finally tease you about yer English. Out of pure jealousy (spelling) of your grammer being better than mine of course. Hooo...i'm getting excited...am I right...? Laterz! "An expert is someone who has made all the mistakes in his or her field" - Niels Bohr Re: Convert .OBJ -> .LIB Nish Nishant4-Mar-02 17:49 Nish Nishant 4-Mar-02 17:49  HockeyDude wrote: Out of pure jealousy (spelling) of your grammer being better than mine It's spelt "grammar" and not "grammer" My sentence :- You cannot convert just about any obj file to lib!!! This means you cannot take any random obj file and convert it to a lib file. "just about" is a phrase. http://www.dictionary.com/search?q=just%20about Nish It's seven o'clock On the dot I'm in my drop top Cruisin' the streets - Oh yeah I got a real pretty, pretty little thing that's waiting for me Re: Convert .OBJ -> .LIB Nish Nishant4-Mar-02 17:51 Nish Nishant 4-Mar-02 17:51  Nish [BusterBoy] wrote: "just about" is a phrase. Actually it's an idiom Nish It's seven o'clock On the dot I'm in my drop top Cruisin' the streets - Oh yeah I got a real pretty, pretty little thing that's waiting for me Re: Convert .OBJ -> .LIB alex.barylski4-Mar-02 17:58 alex.barylski 4-Mar-02 17:58  Damn it Nish... I'll catch you one day... See you have the benefit (i don't really know, but i'll assume) of not learning english in quite the same setting as me. When I speak it's full of normal slang, Sooo sometimes proper grammer or pronounciation doesn't seem right to me, cuz well...it's the only language I know and I like my enlgish...not websters or whoever...Plus I speak Canadian English eh!!! For instance...in Canada Color is Color not Colour...like I think the Brits or Americans spell it. Actually I may have that backwards... So yeah...ummm...thats my excuse for lack of literacy...or whatever it is... Perhaps we should all communicate using a hybrid..??? of C++ or something... if(Nish) AfxMessageBox("Whats up?"); else AfxMessageBox("Are you there..?"); This way there would be no correcting, cuz the compiler would catch your gramm(er) mistakes before sending out...? Cheers man! "An expert is someone who has made all the mistakes in his or her field" - Niels Bohr Re: Convert .OBJ -> .LIB Nish Nishant4-Mar-02 18:22 Nish Nishant 4-Mar-02 18:22  Actually I learned english by speaking english too. In school we had to use english compulsorily. It wasn't easy doing that when you are 4 or 5 years old and you dont know the language except for that apple-ball-cat stuff the teacher shows you on the board. But then you catch up and by the time you are 8, you can speak the language well enough to insult someone's grandparents without using any explicitly abusive words. Nish It's seven o'clock On the dot I'm in my drop top Cruisin' the streets - Oh yeah I got a real pretty, pretty little thing that's waiting for me Re: Convert .OBJ -> .LIB alex.barylski4-Mar-02 22:35 alex.barylski 4-Mar-02 22:35  English is pretty popular. Yeah I insulted grandparents too, but not with English...I used the filipino I picked up from friends. They never knew what I was saying. Memories....!!! "An expert is someone who has made all the mistakes in his or her field" - Niels Bohr

Last Visit: 31-Dec-99 18:00     Last Update: 10-Jun-24 6:04 Refresh ᐊ Prev1...17353173541735517356173571735817359173601736117362 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.