C / C++ / MFC

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the SINUS The_Server12-Jul-04 9:54 The_Server 12-Jul-04 9:54  Hi all... (* long time no seen *) For months and months I try to find out... What is the formula behind the sinus, because I want to do my own sinus function (Ex. double MySin(double) ) Please heeelp me... Any kind of help will be greatly appreciated =-=-=-=-=-=-= The Server Re: the SINUS palbano12-Jul-04 10:03 palbano 12-Jul-04 10:03  http://mathworld.wolfram.com/Sine.html[^] "No matter where you go, there your are." - Buckaroo Banzai -pete Alignment and Packing of Structures jerry1211a12-Jul-04 7:29 jerry1211a 12-Jul-04 7:29  Can someone tell me where I can find some good info, on packing structures and alignment. I have never quite understood the topic. I have to pack some structures in my Windows application. Thanks. Jerry Re: Alignment and Packing of Structures David Crow12-Jul-04 8:34 David Crow 12-Jul-04 8:34  Start with the #pragma pack() directive. "When I was born I was so surprised that I didn't talk for a year and a half." - Gracie Allen Re: Alignment and Packing of Structures jerry1211a12-Jul-04 8:51 jerry1211a 12-Jul-04 8:51  OK thanks. Jerry win32 drawing Anonymous12-Jul-04 7:00 Anonymous 12-Jul-04 7:00  Hai, I'm using win32 vc++. I'm drawing the background for my button by subclassing. But at no. of times I'm enabling and disabling the button in my dialog procedure(not in subclass proc). At those times how can I display the text in button as grey ie. how can I retrieve the text from the button and grey it? Thanks a lot. Re: win32 drawing Navin12-Jul-04 10:57 Navin 12-Jul-04 10:57  Does GetWindowText work?? "Fish and guests stink in three days." - Benjamin Franlkin Re: win32 drawing md666612-Jul-04 11:14 md6666 12-Jul-04 11:14  hai, GetWindowText did'nt work. It's getting the caption of the button which there is none cause i'm displaying the text of the button using DrawText() inside the subclass procedure. anyway thanks. Re: win32 drawing Bob Stanneveld12-Jul-04 13:19 Bob Stanneveld 12-Jul-04 13:19  In that case, you should store a copy of the text displayed in a member variable inside the subclass. Then override the GetWindowText function (or define an other) that gives you acces to the caption of the button. A student knows little about a lot. A professor knows a lot about little. I know everything about nothing. integrating C++ and VC++??? naveen_vi12-Jul-04 6:25 naveen_vi 12-Jul-04 6:25  Hi, I have a device driver for a USB device written in VC++.There is a function in it to Read /write data to the USB port.Now I want to write a a function in C++ so that users can write programs in C++ rather in VC++. Since c++ doesnt recognise data types like DWORD,BUFFER etc..I am struck. Is there anyway i can link C++ and VC++.Can i use pointers. thanks nev. Re: integrating C++ and VC++??? palbano12-Jul-04 7:02 palbano 12-Jul-04 7:02  naveen_vi wrote: Since c++ doesnt recognise data types like DWORD From WinDef.h typedef unsigned long DWORD; naveen_vi wrote: Is there anyway i can link C++ and VC++.Can i use pointers. "No matter where you go, there your are." - Buckaroo Banzai -pete Re: integrating C++ and VC++??? naveen_vi12-Jul-04 7:33 naveen_vi 12-Jul-04 7:33  Hi, Thanks for ur reply. So is it enough to include windef.h in my C++ program and write my own header file. so with typdef can i convert all windows data and use them in my C++ file. nev Re: integrating C++ and VC++??? palbano12-Jul-04 7:38 palbano 12-Jul-04 7:38  nev, i don't want to insult you but this is all beginner C++ issues. You should probably take the time to study these basic language concepts so that you understand them before you attempt to implement your project. But, that's just my opinion... I could be wrong. "No matter where you go, there your are." - Buckaroo Banzai -pete Re: integrating C++ and VC++??? Michael Dunn12-Jul-04 9:14 Michael Dunn 12-Jul-04 9:14  naveen_vi wrote: so that users can write programs in C++ rather in VC++. Not sure I understand what you're asking. Visual C++ is the IDE, C++ is the language. You don't need VC to write C++. --Mike-- Personal stuff:: Ericahist | Homepage Shareware stuff:: 1ClickPicGrabber | RightClick-Encrypt CP stuff:: CP SearchBar v2.0.2 | C++ Forum FAQ ---- Re: integrating C++ and VC++??? Anonymous12-Jul-04 10:05 Anonymous 12-Jul-04 10:05  hi mike, I have a USB chip.They have given me the device driver and thier function looks like this. http://www.ftdichip.com/knowledgebase/d2xx/manual/userguide.htm write function is: FT_STATUS FT_Write ( FT_HANDLE ftHandle, LPVOID lpBuffer, DWORD dwBytesToWrite, LPDWORD lpdwBytesWritten ) .They actually imported functions from win32 api(kernell32.dll). where FT_status is ULONG data type. http://www.ftdichip.com/knowledgebase/d2xx/manual/userguide.htm If i just want to write a C++ program to write my data into LPVOID lpbuffer.How do i di it.I want my function to look like write(int addr,unsigned char data); nev One Question Mr. MIke ThatsAlok12-Jul-04 20:40 ThatsAlok 12-Jul-04 20:40  Helloo sir,with all due respect, could you give me useful pointer over smartcard api's thanks ----------------------------- "I Think It will Work" ----------------------------- Alok Gupta visit me at http://www.thisisalok.tk Re: One Question Mr. MIke Michael P Butler13-Jul-04 1:06 Michael P Butler 13-Jul-04 1:06  Alok the programmer wrote: could you give me useful pointer over smartcard api's What kind of API. Are you talking about a smart card reader or the API of the card itself. The API's usually depend on the hardware being used to read the cards. Google is your best friend in these matters unless you know the manufacturer of your hardware/card. Michael CP Blog [^] Re: integrating C++ and VC++??? Michael P Butler13-Jul-04 1:03 Michael P Butler 13-Jul-04 1:03  naveen_vi wrote: Since c++ doesnt recognise data types like DWORD,BUFFER etc..I am struck. DWORD, BUFFER etc are all Windows types. If you are writing a Windows application then these will be available in any C++ compiler. Most of these are defined in WINDEFS.H and map to standard C++ types. Your question is a little vague. More information would allow us to help you better. Michael CP Blog [^] Problem with find in string Azghar Hussain12-Jul-04 5:14 Azghar Hussain 12-Jul-04 5:14  Hi Everybody, I would like to know how to find a substring in a string. finding should be done without case sensitive. for example consider a string HomeWork. I want to search wheather worK is there in the above string. Let me know any function that perform this type of searching. I tried strstr(), but it did not work because it is case sensitive. Thanks in Advance. Re: Problem with find in string palbano12-Jul-04 5:48 palbano 12-Jul-04 5:48  http://msdn.microsoft.com/library/default.asp?url=/library/en-us/vclib/html/_crt__stricmp.2c_._wcsicmp.2c_._mbsicmp.asp[^] Software development will be exponentially easier if you learn to use documentation. "No matter where you go, there your are." - Buckaroo Banzai -pete Re: Problem with find in string David Crow12-Jul-04 5:55 David Crow 12-Jul-04 5:55  DELIVER THE PROMISE wrote: I tried strstr(), but it did not work because it is case sensitive. So convert both to the same case and go from there. "When I was born I was so surprised that I didn't talk for a year and a half." - Gracie Allen Re: Problem with find in string Navin12-Jul-04 9:34 Navin 12-Jul-04 9:34  As DavidCrow said - probably the easiest way would be to make all strings the same case, and then compare. E.g., use strupr on the string and the substring, then do an strstr. The other option is to write the search yourself. That actually would not be that hard to do, and perhaps that is the purpose of your homework anyway. "Fish and guests stink in three days." - Benjamin Franlkin Re: Problem with find in string Anonymous12-Jul-04 19:47 Anonymous 12-Jul-04 19:47  Thanks for helping me out. I have converted both strings into lower and searched. Thanks a lot ;););););););););) Write to Serial Comms port limited to 0x7f LittleYellowBird12-Jul-04 4:57 LittleYellowBird 12-Jul-04 4:57  I am writting to the Serial Port using m_port.Write(sBuf, 7);. This writes 7 bytes stored in the array sBuf, which is an array of chars. However, it only works for numbers upto 0x7f (127), anything more than that loses the upper bit. Any ideas for a fix? Ali Re: Write to Serial Comms port limited to 0x7f jmkhael12-Jul-04 5:12 jmkhael 12-Jul-04 5:12  What is the type of m_port? Papa while (TRUE) Papa.WillLove ( Bebe ) ;

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