C / C++ / MFC

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Re: heap question Mike Beckerleg6-Jan-04 2:39 Mike Beckerleg 6-Jan-04 2:39  The memory itself is stored in the heap. The function used to allocate the memory (new, malloc, etc) returns a pointer to the location in the heap. Mike Controlling the recording control microphone Anonymous4-Jan-04 20:06 Anonymous 4-Jan-04 20:06  How can i increase or decrease the Recording control microhpne volume?? EXE on DOS and win32 pranavamhari4-Jan-04 19:54 pranavamhari 4-Jan-04 19:54  hi, can one write an exe that will run on DOS and windows ? I mean in windows it should be able to show message box, dialogs etc. I am asking this because one program I downloaded from net seems to do this. regards hari Hari Krishnan Re: EXE on DOS and win32 abc8764-Jan-04 20:06 abc876 4-Jan-04 20:06  you can display Message Box and call MFC in Win32 Console Applicationscreated in VC++ Muhammad Shoaib Khan http://geocities.com/lansolution Re: EXE on DOS and win32 Rickard Andersson205-Jan-04 2:55 Rickard Andersson20 5-Jan-04 2:55  That is a Win32 Console Application which you can do GUI in. With DOS applications you can't deal with GUI. Rickard Andersson Here is my card, contact me later! UIN: 50302279 Sonork: 37318 gethostbyname failed in Window XP lauch24-Jan-04 19:34 lauch2 4-Jan-04 19:34  I found that gethostbyname() would be failed if I disconnected the cable from the LAN adapter. However, if I re-connected the cable to the LAN adapter, it worked fine. More info is: If the cable is disconnected from the LAN adapter, ipconfig command will return the following: Ethernet adapter Local Area Connection: Media State . . . . . . . . . . . : Media disconnected Any idea? Thanks in advance, lauch. Re: gethostbyname failed in Window XP Roger Wright4-Jan-04 20:42 Roger Wright 4-Jan-04 20:42  getHostByName() retrieves information from the DNS or WINS server. If you unplug the cable it has nowhere to look for the information. "Another day done - All targets met; all systems fully operational; all customers satisfied; all staff keen and well motivated; all pigs fed and ready to fly" - Jennie A. Re: gethostbyname failed in Window XP lauch24-Jan-04 21:31 lauch2 4-Jan-04 21:31  Thanks, Roger Wright. Then, if I unplug the cable, how can I retrieve the IP address of the local machine? I have used the following ways, but all they are failed: 1. Use API getaddrinfo() 2. Use API GetAdaptersAddresses() 3. Use INTRFC.exe sample, which in turn use the API WSAIoctl(s, SIO_GET_INTERFACE_LIST, NULL, 0, &localAddr, sizeof(localAddr), &bytesReturned, NULL, NULL); In addition, I know the IP addresses are stored in the regitry. However, I want to use other ways to IP addresses if the cable is unpluged. thx, lauch. CPropertySheet failing to create Kibble4-Jan-04 18:41 Kibble 4-Jan-04 18:41  I am having trouble getting a CPropertySheet to not fail create. I've set it up like this example: http://msdn.microsoft.com/library/default.asp?url=/library/en-us/vclib/html/_mfc_cpropertysheet.3a3a.create.asp The differences are its not in a CView derived class. Does that really cause the Create to fail? It will be a huge pita to derive the outer class from CView. I'm getting Assertion failed in dlgprop.cpp line 201, no other information. Re: CPropertySheet failing to create valikac5-Jan-04 4:53 valikac 5-Jan-04 4:53  The type of the parent view does not affect a property sheet. Kuphryn i learn c++ than naing nge4-Jan-04 18:35 than naing nge 4-Jan-04 18:35  help me i learn c++(programming language).you help me anyway. (eg. books or website) you new friend than naing nge Myanmar(burma) Re: i learn c++ Selvam R4-Jan-04 18:47 Selvam R 4-Jan-04 18:47  Hello, http://www.research.att.com/~bs/C++.html http://www.cplusplus.com/ http://www.msdn.microsoft.com/visualc/ http://www.codeproject.com;P http://www.codeguru.com With Regards, R.Selvam Re: i learn c++ abc8764-Jan-04 20:03 abc876 4-Jan-04 20:03  use some good book like "Thinking in C++" "Effective C++" "The C++ programming language by Bjarne Stroustrup" and offcourse codeproject.com Muhammad Shoaib Khan http://geocities.com/lansolution Re: i learn c++ jhwurmbach4-Jan-04 21:54 jhwurmbach 4-Jan-04 21:54  If you have programming experience and want to learn C++ (as opposed to learn programming), I can recommend "Accelerated C++"[^] by Andrew Koenig / Barbara Moo. Who is 'General Failure'? And why is he reading my harddisk?!? Re: i learn c++ Balkrishna Talele4-Jan-04 23:48 Balkrishna Talele 4-Jan-04 23:48  "Thinking in C++" by bruce eckel is free and hardcore, but if you are very new to c++, i recommend that you open C++ complete reference first and then go for Thinking in C++, and C++ is in you!!! cheers Balkrishna Talele compliler cannot open 'include file' mapledrops4-Jan-04 18:06 mapledrops 4-Jan-04 18:06  I compiled my project at home without any errors but when I opened it on another pc and edit the code, the compiler encounter error: cannot open include file 'afxdao.h': no such file or directory. Hwo to resolve this? Re: compliler cannot open 'include file' Selvam R4-Jan-04 18:52 Selvam R 4-Jan-04 18:52  Hello afxdao.h file missed in your system. So, you can copy afxdao.h file in to VC++ program files include directory. With Regards, R.Selvam compliler cannot open 'include file' Anonymous4-Jan-04 18:04 Anonymous 4-Jan-04 18:04  I compiled my project at home without any errors but when I opened it on another pc and edit the code, the compiler encounter error: cannot open include file 'afxdao.h': no such file or directory. Hwo to resolve this? Re: compliler cannot open 'include file' abc8764-Jan-04 19:58 abc876 4-Jan-04 19:58  check if path of INCLUDE directory is right one Muhammad Shoaib Khan http://geocities.com/lansolution What functions are there to read from files? obe4-Jan-04 11:31 obe 4-Jan-04 11:31  Hi, I know of ReadFile, ReadFileEx and ReadFileScatter. Are there any other (perhaps lower-level) functions that can be used to read data from files? Specifically, I would like to know which function DirectShow uses when playing a WMV file (more percisely - which function the filter DS loads calls). I know that it is not one of the 3 mentioned above... Thanks in advance, Oz Re: What functions are there to read from files? alex.barylski4-Jan-04 16:38 alex.barylski 4-Jan-04 16:38  crt functions like fopen The word of the day is legs, let's go back to my house and spread the word Re: What functions are there to read from files? obe4-Jan-04 19:23 obe 4-Jan-04 19:23  They use ReadFile behind the scenes. Re: What functions are there to read from files? abc8764-Jan-04 19:54 abc876 4-Jan-04 19:54  U can use fstream class object and use its functions like read Muhammad Shoaib Khan http://geocities.com/lansolution Thanks, but I would like to know which SYSTEM-LEVEL functions obe4-Jan-04 21:34 obe 4-Jan-04 21:34  are there, to read from files. fread, fstream - they all use ReadFile (or ReadFileEx) internally. I want to know what Win32 API functions are there, to read from files. Re: Thanks, but I would like to know which SYSTEM-LEVEL functions jan larsen6-Jan-04 2:00 jan larsen 6-Jan-04 2:00  ReadFile is the most low level API call you cant get for reading directly from a handle, but there is also a more sophisticated way to read a file. You could create a memory mapping of the file and then use any developer tricks you can dream up. An example: If the file is a bitmap file, then you can cast the void * you get from the mapping to a struct BITMAPFILEHEADER *, and then read from the members of that structure. "After all it's just text at the end of the day. - Colin Davies "For example, when a VB programmer comes to my house, they may say 'does your pool need cleaning, sir ?' " - Christian Graus

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