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Re: How to stop the msvc optimizer from flushing registers? Ryan Binns17-Jul-03 5:48 Ryan Binns 17-Jul-03 5:48  You could use the register keyword, but I'm not sure if the compiler honours that any more. If you optimise for speed, it should use only the register anyway. Use the /Oe option to optimise register-allocation, and the compiler should be able to sort this out. If neither of these work, either you can write the algorithm in assembly, use a different compiler, or just accept it Ryan "Punctuality is only a virtue for those who aren't smart enough to think of good excuses for being late" John Nichol "Point Of Impact" Re: How to stop the msvc optimizer from flushing registers? Mike Nordell17-Jul-03 9:22 Mike Nordell 17-Jul-03 9:22  Ryan Binns wrote: You could use the register keyword, Or you could read the documentation that states the register keyword is disregarded. The choice is yours, but knowing this compiler I think you'd be wrong to not trust the documentation. Re: How to stop the msvc optimizer from flushing registers? Ryan Binns17-Jul-03 14:28 Ryan Binns 17-Jul-03 14:28  Did you only read the first half of the sentence? Just wondering... Ryan "Punctuality is only a virtue for those who aren't smart enough to think of good excuses for being late" John Nichol "Point Of Impact" Re: How to stop the msvc optimizer from flushing registers? Aardappel17-Jul-03 21:24 Aardappel 17-Jul-03 21:24  The register keyword is indeed useless. /Oe doesn't help either, the optimisation I am looking at is all inside a single function (a local variable). I don't want to write it in assembly, it has to be portable across a great many architectures, of which x86 happens to be the most important one. I am just attempting to write C++ that doesn't stop msvc from making important optimisations. Re: How to stop the msvc optimizer from flushing registers? Mike Nordell17-Jul-03 9:08 Mike Nordell 17-Jul-03 9:08  Aardappel wrote: How do I stop the superfluous flushing/loading from happening? You don't. No, really. When the compiler wants one thing and you want another, the compiler *always* wins - I've been in this position too when it allocated regs like a drunk. I had to rewrite my code, using C++ and especially inlined templated functions (no matter how insane it seems, the basically 4 registers the compiler selects from had a profound difference) to get it to allocate and (not) flush regs where (not) needed. Basically, when the compiler screws you, you have no voice - accept or rewrite. One *can* of course fall back to ASM, but it suck when one have payed $$$ for an "optimizing" compiler that M$ had over a decade to "optimize", doesn't it. (btw, try to use the "intrinsic" versions of e.g. str* and mem* and you know what MS "quality" is...) Re: How to stop the msvc optimizer from flushing registers? Anonymous17-Jul-03 21:28 Anonymous 17-Jul-03 21:28  Yup, I am very much aware of this. But when it comes to optimisations, you can often help it by writing your code in a certain way. For example, if I had written &var of the variable somewhere, I would understand that it flushes the var everywhere: it can be accessed by an alias after all. But in my case, I never do anything like this. So I want to find out what code exactly confuses the compiler. Would be good if the compiler had optimisation warnings Re: How to stop the msvc optimizer from flushing registers? Aardappel17-Jul-03 21:30 Aardappel 17-Jul-03 21:30  whoops, that was my reply, not Anonymous. I should get an account. How can I import a nice looking icon? DanYELL17-Jul-03 5:26 DanYELL 17-Jul-03 5:26  All my icons that are associated with a program look so boring and plain. What really drives me nuts though is that the icon in the upper left corner of the program in Windows 98 or 2000 look okay, but the same program on XP and the icon looks blurry. How can I take a nice looking bitmap and make that into a icon, rather than using that little 32x32 box that Visual C++ forces the developer to create icons with? There has to be a way since everyone else has a nice looking icon associated with their software. Sincerely, Danielle (an overworked graduate student) Re: How can I import a nice looking icon? pranavamhari17-Jul-03 6:23 pranavamhari 17-Jul-03 6:23  Use any icon creation programs like Axialis Ax-Icons Awicons MicroAngelo Awicons is my favorite. Sorry all are shareware. But 30 days is enough for creating an icon. Hari Krishnan Re: How can I import a nice looking icon? Mike Nordell17-Jul-03 9:12 Mike Nordell 17-Jul-03 9:12  DanYELL wrote: How can I take a nice looking bitmap and make that into a icon, rather than using that little 32x32 box that Visual C++ forces the developer to create icons with? Perhaps by reading up on, and downloading code for, high quality scaling? Google is your friend. Give a man his food and he'll be back tomorrow for more. Teach him how to fish and he's self-sustained. Simple Direct Show question rrrado17-Jul-03 5:22 rrrado 17-Jul-03 5:22  I need to make program, that will open given video file in any format for which the system has installed codec. All I need to do is getting the movie length in seconds. How to do this in most simple way ? I don't know anything about direct show, and I won't study whole the thing because I don't need more than getting movie length. Does anyone have piece of code for this, or idea where to start ? Thank you rrrado Re: Simple Direct Show question GheeButter17-Jul-03 8:15 GheeButter 17-Jul-03 8:15  Hi There! Probably the best (quickest) way to do this is using the IMediaDet interface in DirectShow. http://msdn.microsoft.com/library/default.asp?url=/library/en-us/directx9_c/directx/htm/usingthemediadetector.asp This article talks about retrieving all sorts of information from a media file - assuming that the codec is installed on the machine we should be able to work out the stream time. Perhaps someone else has some code which will do this straight away for you. Good Luck! How can I prevent that an OCX or a Dll is loading more then once? gar@isogmbh.de17-Jul-03 4:48 gar@isogmbh.de 17-Jul-03 4:48  Hi, I have an application which contains a lot of OCXs. The Problem is that an OCX is loading twice. How can I prevent that an OCX or a Dll is loading more then once? Any idea? thanks, Walter Re: How can I prevent that an OCX or a Dll is loading more then once? Iain Clarke, Warrior Programmer17-Jul-03 5:00 Iain Clarke, Warrior Programmer 17-Jul-03 5:00  This is one of those problems that demands lateral thinking. The OCX is being loaded twice, because it is being *asked* to... The solution depends on *why* you want to prevent it from loading twice. You could let it load multiple times, but only on the first instance let any calls succeed. Or you could go the brute force way, and set DllMain to return FALSE when being attached to by a second process. How you detect this is another question. Involving shared segment, or memory mapped files, etc. Iain. Re: How can I prevent that an OCX or a Dll is loading more then once? gar@isogmbh.de17-Jul-03 6:21 gar@isogmbh.de 17-Jul-03 6:21  Hi Iain, Thanks for your answer. The same OCX is loaded twice in the same process. I detected it in the Developer Studio->Debuger->Modules… How can I ask/prvent an OCX to load twice? We have a Framework, I think the Framework call the OCX twice but I don't know why If the same OCX is loading twice in the same process, I have a problem with the “AFX_MANAGE_STATE(AfxGetStaticModuleState( ))” because it gets a different address for the same OCX. What can I do to have only an OCX in the process? Tanks a lot Walter How to debug "abnormal program termination" Anonymous17-Jul-03 4:40 Anonymous 17-Jul-03 4:40  ... you know - the dialog box that come up when runtime calls abort? DrWatson doesn't dump anything. Is there some kind of try-catch thing I can put somewhere? I can not use debug build and/or debuger - it's at clients site Urgent... Please help! tapi messages Liate17-Jul-03 4:07 Liate 17-Jul-03 4:07  Hi, I have a tapi application which drives the voice modem. After dialing I would like to get an indication whether the call was connected (LINE_CALLSTATE with param1 equals LINECALLSTATE_CONNECTED) or if the call was disconnected and why (for example line is busy). I do know how to use the messages that are generated and sent to my callback function. I dial the number using lineMakeCall. The last parameter for this function is the CALLPARAMS. Whenever I set the dwMediaMode of the CALLPARAMS to LINEMEDIAMODE_DATAMODEM I get an indication for why the call got disconnected (in case of an error) but I never get an indication that the call is connected (if no error occurred). When I change it to LINEMEDIAMODE_INTERACTIVEVOICE I get the other way around (only success indication). Any idea how I can get both notifications? thanks, Liat. mailto problem skinnyreptile17-Jul-03 4:05 skinnyreptile 17-Jul-03 4:05  Here's what my code section is: "mailto:abc@abc.com?Body=WHATever..." Result in Outlook 2000 and 98: Body --> WHATever Result in Outlook 97: Body --> whatever Anyone please let me know why Outlook 97 convert letters from upper case to lower case? Is mailto only work for Outlook 98 and after? Re: mailto problem Iain Clarke, Warrior Programmer17-Jul-03 4:29 Iain Clarke, Warrior Programmer 17-Jul-03 4:29  This question belongs in the Web Development forum, as it is nothing to do with Visual C++... Repeat offenders suffer the WRATH OF ! That said, you might want to try enclosing your BODY in quotes. Or just use lower case the whole time, in which case you won't care! Iain. Re: mailto problem Ryan Binns17-Jul-03 5:39 Ryan Binns 17-Jul-03 5:39  Iain Clarke wrote: Or just use lower case the whole time, in which case you won't care! That's really helpful... Ryan "Punctuality is only a virtue for those who aren't smart enough to think of good excuses for being late" John Nichol "Point Of Impact" Re: mailto problem Iain Clarke, Warrior Programmer17-Jul-03 6:01 Iain Clarke, Warrior Programmer 17-Jul-03 6:01  Ryan Binns wrote: That's really helpful... I try, I really do! Enough work, it's time to go to the pub and have a now... Iain. Tab Order User 988517-Jul-03 3:51 User 9885 17-Jul-03 3:51  Can I specify a new tab order, after a CDialog has been created from a resource template, say for instance when I click on a button in the dialog? My article on a reference-counted smart pointer that supports polymorphic objects and raw pointers modified 29-Aug-18 21:01pm. Re: Tab Order Mike Dimmick17-Jul-03 4:23 Mike Dimmick 17-Jul-03 4:23  Tab order is the Z order of the controls. From memory, I think items that appear earlier in the Z order (i.e. 'beneath' other controls) are earlier in the tab order. You can adjust the Z order with the SetWindowPos function. Re: Tab Order Iain Clarke, Warrior Programmer17-Jul-03 4:25 Iain Clarke, Warrior Programmer 17-Jul-03 4:25  Yes. The tab order in the resource editor simply becomes the order in which the controls are created. The order in which they are created is reflected in the Z order of the child windows. So: void CMyDialog::OnChangeTabOrder () { CWnd *pWnd1 = GetDlgItem (IDC_EDIT1); CWnd *pWnd2 = GetDlgItem (IDC_EDIT2); pWnd1->SetWindowPos (pWnd2, 0,0,0,0, SWP_NOMOVE | SWPNOSIZE); } would put IDC_EDIT1 immediately after IDC_EDIT2 in the tab order. This assumes they each have the WS_TABSTOP style set, else TAB would skip over them. WS_GROUP is something else to be careful about. Clear? Iain. VS.NET and Win XP... Anonymous17-Jul-03 3:44 Anonymous 17-Jul-03 3:44  Hello, I am just wondering if Visual Studio.NET will work with Windows XP Home Edition Thanks, -Mike

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