C / C++ / MFC

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OLE/COM 16-Feb-02 3:24 16-Feb-02 3:24  hello, Does OLE/COM use SendMessage(----) and other such message functions internally? If not,how does it work? Crista Re: OLE/COM pba_16-Feb-02 5:13 pba_ 16-Feb-02 5:13  Locally ( on the same machine), COM use message queues only for objects located in STA apartments ( to serialize the access ) - for the other types of objects it use LPC. where are the sound functions 16-Feb-02 3:18 16-Feb-02 3:18  hi, Where did all the sound functions(API) which were in win3.0 go? There were functions to GENERATE sounds which I cannot find in VC++6.0. Where are they? Laura Re: where are the sound functions NormDroid16-Feb-02 3:39 NormDroid 16-Feb-02 3:39  Platform SDK: Windows Multimedia Multimedia Functions The following functions are used with multimedia. acmDriverAdd acmDriverClose acmDriverDetails acmDriverEnum acmDriverEnumCallback acmDriverID acmDriverMessage acmDriverOpen acmDriverPriority acmDriverProc acmDriverRemove acmFilterChoose acmFilterChooseHookProc acmFilterDetails acmFilterEnum acmFilterEnumCallback acmFilterTagDetails acmFilterTagEnum acmFilterTagEnumCallback acmFormatChoose acmFormatChooseHookProc acmFormatDetails acmFormatEnum acmFormatEnumCallback acmFormatSuggest acmFormatTagDetails acmFormatTagEnum acmFormatTagEnumCallback acmGetVersion acmMetrics acmStreamClose acmStreamConvert acmStreamConvertCallback acmStreamMessage acmStreamOpen acmStreamPrepareHeader acmStreamReset acmStreamSize acmStreamUnprepareHeader auxGetDevCaps auxGetNumDevs auxGetVolume auxOutMessage auxSetVolume AVIBuildFilter AVIClearClipboard AVIFileAddRef AVIFileCreateStream AVIFileEndRecord AVIFileExit AVIFileGetStream AVIFileInfo AVIFileInit AVIFileOpen AVIFileReadData AVIFileRelease AVIFileWriteData AVIGetFromClipboard AVIMakeCompressedStream AVIMakeFileFromStreams AVIMakeStreamFromClipboard AVIPutFileOnClipboard AVISave AVISaveOptions AVISaveOptionsFree AVISaveV AVIStreamAddRef AVIStreamBeginStreaming AVIStreamCreate AVIStreamEndStreaming AVIStreamFindSample AVIStreamGetFrame AVIStreamGetFrameClose AVIStreamGetFrameOpen AVIStreamInfo AVIStreamLength AVIStreamOpenFromFile AVIStreamRead AVIStreamReadData AVIStreamReadFormat AVIStreamReleaseAVIStreamSampleToTime AVIStreamSetFormat AVIStreamStart AVIStreamTimeToSample AVIStreamWrite AVIStreamWriteData capControlCallback capCreateCaptureWindow capErrorCallback capGetDriverDescription capStatusCallback capVideoStreamCallback capWaveStreamCallback capYieldCallback CreateEditableStream DllGetClassObject DrawDibBegin DrawDibChangePalette DrawDibClose DrawDibDraw DrawDibEnd DrawDibGetBuffer DrawDibGetPalette DrawDibOpen DrawDibProfileDisplay DrawDibRealize DrawDibSetPalette DrawDibStart DrawDibStop DrawDibTime EditStreamClone EditStreamCopy EditStreamCut EditStreamPaste EditStreamSetInfo EditStreamSetName GetOpenFileNamePreview GetSaveFileNamePreview ICClose ICCompress ICCompressorChoose ICCompressorFree ICDecompress ICDecompressEx ICDecompressExBegin ICDecompressExQuery ICDraw ICDrawBegin ICDrawSuggestFormat ICGetDisplayFormat ICGetInfo ICImageCompress ICImageDecompress ICInfo ICInstall ICLocate ICOpen ICOpenFunction ICRemove ICSendMessage ICSeqCompressFrame ICSeqCompressFrameEnd ICSeqCompressFrameStart ICSetStatusProc IOProc joyGetDevCaps joyGetNumDevs joyGetPos joyGetPosEx joyGetThreshold joyReleaseCapture joySetCapture joySetThreshold mciGetCreatorTask mciGetDeviceID mciGetErrorString mciGetYieldProc mciSendCommand mciSendString mciSetYieldProc MCIWndCreate MCIWndRegisterClass midiConnect midiDisconnect midiInAddBuffer midiInClose midiInGetDevCaps midiInGetErrorText midiInGetID midiInGetNumDevs midiInMessage midiInOpen midiInPrepareHeader midiInProc midiInReset midiInStart midiInStop midiInUnprepareHeader midiOutCacheDrumPatches midiOutCachePatches midiOutClose midiOutGetDevCaps midiOutGetErrorText midiOutGetID midiOutGetNumDevs midiOutGetVolume midiOutLongMsg midiOutMessage midiOutOpen midiOutPrepareHeader MidiOutProc midiOutReset midiOutSetVolume midiOutShortMsg midiOutUnprepareHeader midiStreamClose midiStreamOpen midiStreamOut midiStreamPause midiStreamPosition midiStreamProperty midiStreamRestart midiStreamStop mixerClose mixerGetControlDetails mixerGetDevCaps mixerGetID mixerGetLineControls mixerGetLineInfo mixerGetNumDevs mixerMessage mixerOpen mixerSetControlDetails mmioAdvance mmioAscend mmioClose mmioCreateChunk mmioDescend mmioFlush mmioGetInfo mmioInstallIOProc mmioOpen MMIOProc mmioRead mmioRename mmioSeek mmioSendMessage mmioSetBuffer mmioSetInfo mmioStringToFOURCC mmioWrite MyStatusProc PlaySound sndPlaySound timeBeginPeriod timeEndPeriod timeGetDevCaps timeGetSystemTime timeGetTime timeKillEvent TimeProc timeSetEvent waveInAddBuffer waveInClose waveInGetDevCaps waveInGetErrorText waveInGetID waveInGetNumDevs waveInGetPosition waveInMessage waveInOpen waveInPrepareHeader waveInProc waveInReset waveInStart waveInStop waveInUnprepareHeader waveOutBreakLoop waveOutClose waveOutGetDevCaps waveOutGetErrorText waveOutGetID waveOutGetNumDevs waveOutGetPitch waveOutGetPlaybackRate waveOutGetPosition waveOutGetVolume waveOutMessage waveOutOpen waveOutPause waveOutPrepareHeader waveOutProc waveOutReset waveOutRestart waveOutSetPitch waveOutSetPlaybackRate waveOutSetVolume waveOutUnprepareHeader waveOutWrite Normski. - Professional Windows Programmer Re: where are the sound functions 16-Feb-02 3:55 16-Feb-02 3:55  hi, so ,are they available with VC++6.0? Re: where are the sound functions Domenic Denicola16-Feb-02 5:14 Domenic Denicola 16-Feb-02 5:14  I think you will need to download the Platform SDK first for at least some of them. Anyway, the PSDK is a really nice thing to have Get it at the PSDK Update Site: http://www.microsoft.com/msdownload/platformsdk/sdkupdate And to answer the original question, this should work with VC++ 6 once you have the PSDK Have fun! -Domenic Denicola- Geek^n http://madhamster.50megs.com "Any technology that is indistinguishable from magic is insufficiently advanced..." Re: where are the sound functions alex.barylski16-Feb-02 11:46 alex.barylski 16-Feb-02 11:46  I would suggest DirectSound. Cheers! "An expert is someone who has made all the mistakes in his or her field" - Niels Bohr Buffer in memory as file 16-Feb-02 2:51 16-Feb-02 2:51  I need to use some functions that uses files. They open file using OpenFile and uses the returned handle in their other functions. I have the data in a memory buffer. I do not want to write that data to HD and then read it again back through that functions. Is there any way possible by which I can make my memory buffer treated as a file. I mean using the _llseek and other functions but the given handle is something that reads file from memory. Please help,,,,thanks in advance. Re: Buffer in memory as file Mazdak16-Feb-02 3:10 Mazdak 16-Feb-02 3:10  Check: FILE,CFile Mazy Don't Marry a Person You Can Live With... Marry Someone You Can Not Live Without Re: Buffer in memory as file 16-Feb-02 3:47 16-Feb-02 3:47  Can you please clarify. As I mentioned earlier... the data of the file is in memory buffer and i do not want to write it to a file. The functions that I want to use take in file handle of OpenFile. Re: Buffer in memory as file Uwe Keim16-Feb-02 5:25 Uwe Keim 16-Feb-02 5:25  MFC has a class CMemFile, derived from CFile, supporting memory files. -- See me: www.magerquark.de Re: Buffer in memory as file Paul M Watt16-Feb-02 7:05 Paul M Watt 16-Feb-02 7:05  If you are not using MFC, then you will be interested in memory mapped files. 1. open your file with CreateFile. 2. Call CreateFileMapping with the handle that you received from CreateFile. You will also need to specify things like the size of the file that you want to read into memory and access that you would like to have to the file. 3. Call MapViewOfFile, this function will return a pointer to you that you can treat exactly like memory. Depending on the settings that you choose, when you close the file mapping, all of the memory that you have changed will already be written to Disk. In one of the other responses to your question, CMemFile encapsulates this behavios, but you will have to use MFC. having a ansistring = " Steven Richardson16-Feb-02 2:48 Steven Richardson 16-Feb-02 2:48  i need Tmp = "; but i get an error, is there a way of having Tmp = " Re: having a ansistring = " Joaquín M López Muñoz16-Feb-02 3:01 Joaquín M López Muñoz 16-Feb-02 3:01  If I understood you right, Tmp = "\""; is what you're after. Joaquín M López Muñoz Telefónica, Investigación y Desarrollo Re: having a ansistring = " Steven Richardson16-Feb-02 3:10 Steven Richardson 16-Feb-02 3:10  thanks worked great but do you know what to do for a return? Tmp = " go on to a new line? " Re: having a ansistring = " Joaquín M López Muñoz16-Feb-02 3:28 Joaquín M López Muñoz 16-Feb-02 3:28  \n new line \t horizontal tab \b backspace \f form feed \a alert or bell \r carriage return \v vertical tab \\ backslash \' single quote \" double quote Joaquín M López Muñoz Telefónica, Investigación y Desarrollo Radio Buttons 16-Feb-02 1:51 16-Feb-02 1:51  I've a dialog box with radio buttons and i'd like to know how to preselct the radio buttons. The resource is called ID_DIALOG and was created using the Resource editor the radio buttons added from the Controls Menu and is created in a class derived from CDialog! Can u help me cheers - Jason Re: Radio Buttons Mazdak16-Feb-02 1:58 Mazdak 16-Feb-02 1:58  put this in your OnInitDialog after you define controller: m_myradio.SetCheck(true); Mazy Don't Marry a Person You Can Live With... Marry Someone You Can Not Live Without Re: Radio Buttons 16-Feb-02 2:34 16-Feb-02 2:34  Another way of doing this is assign the radio button in a group and then for the first radio button make a int variable from the Class Wizard. Assigning values 0, 1, 2 ... sets the different check boxes. Assign a value in the initdialog box or the constructor. Farsi strings problem !!! Hadi Rezaee16-Feb-02 1:30 Hadi Rezaee 16-Feb-02 1:30  Hi all, I added new Language to my Win2000 OS ... It is Farsi language ... I wanna change my Windows Titlebars and Buttons labels from English U.S. to Farsi strings in my program. So, I changed my Window Language to Neutral in Resource Tab ... But when i run the program, i can only see some strange ANSI characters in Titlebars and button labels !!! NOTICE: I can not write the Farsi strings in VC++ Editor directly !!! How can i solve it ??? (Please help me ...) My month article: Game programming by DirectX by Lan Mader. Please visit in: www.geocities.com/hadi_rezaie/index.html Hadi Rezaie Re: Farsi strings problem !!! Mazdak16-Feb-02 2:04 Mazdak 16-Feb-02 2:04  yes Hadi,this is the same problem that I had it too,it seems we can't use farsi in our application in this way,I'm sorry to say that I used it in Dephi in this way. I think the only way is we have to buy farsi edition of VC,Do you know where can you buy it? Mazy Don't Marry a Person You Can Live With... Marry Someone You Can Not Live Without Opening more than 509 files using VC++ 6.0 SP5 16-Feb-02 1:01 16-Feb-02 1:01  Hi, I need some pieces of advise regarding the following problem: I would like to create a program than open safely more than 509 files on Win NT/2K plateforms. Effectively, Windows NT allows one process to open 2048 files, and WIndows 2K allows even more than 16000 files. However, an application builded with VC++ 6.0 seems limited to 509 opened files. I figured out that 509 + 3 (stdin/stdout/stderr) = 512, which is the values of the _NSTREAM_ macro within the CRT source code. Therefore, I tried to compile the CRT after changing this value to 1024. Bingo ! I could effectively opened 1024 - 3 = 1021 files. BUT MY APPLICATION CRASHED BECAUSE OF getchar() !! I guess that my compiled version of the CRT is not exactly the same as the real MSVCRT.DLL. So, I would appreciate if someone can confirm what to do exactly to open more than 509 files uisng VC++ 6.0 Thanks for any help you can provide. Regards. Hassan Paris, FRANCE Re: Opening more than 509 files using VC++ 6.0 SP5 Nish Nishant16-Feb-02 1:09 Nish Nishant 16-Feb-02 1:09  It might be a good idea to optimize your design a little bit [nothing to do with your nick of course] to avoid having to open 500 plus files at the same time. Nish Nish was here, now Nish has gone; He left his soul, to turn you on; Those who knew Nish, knew him well; Those who didn't, can go to hell. I like to on the Code Project Sonork ID 100.9786 voidmain www.busterboy.org Re: Opening more than 509 files using VC++ 6.0 SP5 16-Feb-02 4:02 16-Feb-02 4:02  Hi Nish, Thanks for answering. Yes you're right, trying to open so many files is not a good idea. However, it is not my design. To tell the full story, I have to find a workaround for some application which I don't have the source code. This application is opening files all the day using incoming data from the outside. The basic idea was to make it runs all the day. Then at "midnight", I stop this application, I do a merge on all files created during the day, and I restart the application. Unfortunately, the incoming dataflow is so high, that the maximum number of file handle is not enough. Also, there is no way to stop the application at noon for instance because this application must run during all business day. Now, if I can find a way to "patch" msvcrt to open at least 1200 files, then I can use this custom MSVCRT.DLL and make the application run as planned. Any better idea is welcome. Regards. Hassan Re: Opening more than 509 files using VC++ 6.0 SP5 Rick York16-Feb-02 6:29 Rick York 16-Feb-02 6:29  There are articles on this site that relate to injecting your code in place of other code. You could use dumpbin and figure out exactly what imports your "other" app is using and make replacements for those functions with your modified CRT library. Good Luck.

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