localtime()

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  - 1
    - ReadFileEx and FileIOCompletionRoutine When the ReadFileEx calls the completion routine I check the buffer holding the returned data. if (ReadBuffer[0] != 0 ) { this executes even though a 0 is in the first element } Why???? thanks Tag: localtime() Tag: 226260
  - 2
    - About database errors Respected Sir, I am using DAO Recordset for my project and recordset type is cynasset, but when I am trying to access any records, I am finding 0 records as well as whenever I am trying to add, edit or delete records, I am getting an error first time when dialog is loaded in daocore.cpp file at line no. 4854 which contains the sentence "ASSERT (m_nFields > 0);". So where is the problem? Regards, Jitesh Tag: localtime() Tag: 226255
  - 3
    - Help about graphs and how to query them. Hi, I'm sorry if this it not the right newsgroup. My question is related with databases, however the way I'm going to handle everything could not be related with that (I use algorithms about reading graphs), and maybe you guys come have a good idea. Ok, let's see if I can explain the problem. I have about a SQL database with 15 tables. Each table has several fields, however each table has a common field called 'Code' ex. Table Vehicles -------------- Code Make Color Table People ------------- Code Name Age Table Addresses ----------------- Code City ZIP ... Now we want to relate records from one table to another. For example, we want to say 'John has two cars' In order to do that, I have an external table called Links with source an destination fields. For the example we would have Source Dest ---------------- P132 V100 P132 V242 (P132 is a record from the People table with code 132, V100 a vehicle from the Vehicle table with code 100, and V242 a vehicle with code 242) So, with all that, we know that John (P132) is related with two vehicles. If I want to run the query 'People associated with vehicles' it would be easy to query that table and get that information. Now, let's suppose we have this situation: Source Dest ---------------- P132 V100 P132 V242 P140 V500 P132 P140 In this example, John is related with Michael (P140) and Michael is related with a vehicle (V500). If I want to run the same query than before 'People associated with vehicles', because of P132 is related with P140 and P140 is related with a V500 this implies that P132 is related with V500. Now, the query is not so simple, because it's like a graph and I need to make a Depth First Search to get what I want. Doing that, I will get that P132 is related with V500 because there is a 'path' to get there. I have done all this and it works fine. The problem that I have is that I need to make that Depth First Search for each people that I have in the database in order to see if I have vehicles associated with it. If I don't have many records it's ok, but If I have 100,000 people on the database I would have to make that search 100,000 times just to see if there is a path between them, I mean, if there is a way to get from a person to a vehicle. In this case... this solution doesn't work, because it takes forever... What do you guys suggest I can try? I though that one solution would be to have a process running on the server that maintains a table with ALL the links that we have in the database and the depth of the link. So, in our example we'd have a entry "P132 V500 with depth 2" Having that table it would be easy to query. Inconvenience: the table is going to be HUGE, and also the process has to be smart enough to keep track of deleted links, new links... I'd appreciate if you guys have any idea or suggestions about this and how I can get a better perfomance. Thanks a lot for reading this whole message!! Tag: localtime() Tag: 226247
  - 4
    - embedding bitmap Hi- Does anyone know of sample code that would show me how to accomplish this: embed a bitmap file into a project (and subsequently my DLL) then write that embedded data to file at runtime? I'm developing a plugin and using there UI library, I want to create the file at runtime to prevent users from replacing the file with there own version. Thanks for any help, Steve Tag: localtime() Tag: 226246
  - 5
    - About copying files Respected Sir, How to copy one database file from one location to another through code in VC? In the same way how to copy one wav file from one location to another through code in VC? Regards, Jitesh Tag: localtime() Tag: 226231
  - 6
    - About data type conversion Respected Sir, How to convert data from CString to COleDateTime? Regards, Jitesh Tag: localtime() Tag: 226230
  - 7
    - How can I communicate with a service? Hi, I'd like to design a software that is mainly made of a service and that would need a user interface to view and edit the configuration. Now, what I need to know is: Is it possible for an independant exe to connect to a service and get data from it or send data to it? If it's possible, what is the best way to do it? Thanks Tag: localtime() Tag: 226229
  - 8
    - Memory Problem Hi all I'm having a problem with the memory management: I'm writing a program with Visual C++ which creates, after a call method, a lot of structures and classes and afterwards they are deleted completely; but I open the Windows Task Manager and the memory used by my program is is always increasing, is it correct or memory should decrease after deleting the classes and structures with 'delete'?? Any idea?? Of course, the problem is that when I'm inserting (but not storing) quite data, my program reaches 200 MB and I think that there is something wrong! Vicent Tag: localtime() Tag: 226228
  - 9
    - GetWindowDC twice Hi Is it ok to call GetWindowDC twice on the same window before ReleaseDC ? HDC dc1 = GetWindow(hWin1); HDC dc2 = GetWindow(hWin1); ... ReleaseDC(hWin1, dc2); ReleaseDC(hWin1, dc1); I usualy only do it once but I noticed that sometimes my drawings calls generate a WM_PAINT message and then id get BeginPaint EndPaint which pretty much does get/release of dcs. thanks a lot. Tag: localtime() Tag: 226223
  - 10
    - template specialization bug Hello, I think I have found a template specialization bug in Microsoft Visual C++ 2003 (VC7.1). The following code compiles with gcc3.2 and Intel 8.0, but gives error C2764 "template parameter not used in partial specialization" with VC7.1. The workaround would be to repeat the complex type deduction done in DefinesAType for the specialization of SomeClass, which is code duplication and error-prone. //a class that has public typedef template < typename T > struct DefinesAType { //assembles in a complicated (assumed) //way a new type from T typedef T AType; }; //class SomeClass will be specialized template < class T> class SomeClass {}; //specialize on the type defined in DefinesAType template < class T > class SomeClass<typename DefinesAType<T>::AType> { }; int main() { SomeClass<int> sc; } Tag: localtime() Tag: 226221
  - 11
    - delete this Hi all I'm developing a program with Visual C++ a I'm wondering if I can write this sentence in Visual C++: 'delete this'. The main objective of this sentence is to the delete the object that I'm in, does anyone know if this can cause some errors? Thanks Tag: localtime() Tag: 226220
  - 12
    - CString mess HEAP in long running programs ? h i make heavy use of CString in database and communications routines in a large program that runs for months. will this eventually cause HEAP problems? thank a Tag: localtime() Tag: 226218
  - 13
    - determining Windows version I need to know at run time if the operating system is Win95/98 or a WinNT variant. Any simple way to do that? Thanks. Tag: localtime() Tag: 226216
  - 14
    - Identify user Hello, Given a process id, at kerner level can we identify who's the user who has the control over the process or who is running that process (or an application). I want to know this for win 98, XP and 2k and above. rgds Bmm Tag: localtime() Tag: 226215
  - 15
    - <char*> data with process-to-process messages Hi there, I register a custom message with RegisterWindowMessage function. I would like to pass <char*> messages via the message: char buf[80]; .... // fill the buf with a message SendMessage( HWND_BROADCAST, MYMESSAGE, (WPARAM)buf, NULL ); this of course does not work as expected: the array is correctly received only in the process that sends the message. all other processes cannot see the message data (I suppose this is due to memory beeing virtually adressed in each process). my question is: how then should I declare the memory to be able to pass the data to another process as <char*>? I've tried to alloc the memory globally (via GlobalAlloc) and pass the pointer but with no result. The only solution I've found is to register the data as an atom (GlobalAddAtom) as pass the atom handle. This solution, however, does not look like a general one. thanks in advance for your help, Wiktor Zychla Tag: localtime() Tag: 226206
  - 16
    - Dll exporting a function that creates MFC dialog is causing crash in MT. Hi I am facing a crash only in 2k with the following scenario . In XP and 98 this problem is not observed In my scenario I have X.exe, Y.dll. Y.dll exports a function (say Z) which has DoModal() of a dialog called. X.exe on click of a button starts a thread and in that thread calls the Z method which shows up a dialog. The problem happens when the button is clicked thrice or more than thrice. The three dialogs are lauched in three threads and are shown. But if I try to move the dialogs, After some time a crash is seen, whcih occurs in a method of MFC42.dll. More information about the scenario is X.exe links Y.dll statically. X links MFC as a shared dll, where as Y.dll links the same as a static dll. I suspected module state change when the the control is going out of thread boundary to Dll. But the exported function already has AFX_MANAGE_STATE(AfxGetStaticModuleState( )); as te first statement. Please let me know if any body faced the same problem before and point me towards the solution. Thanks Sre Tag: localtime() Tag: 226202
  - 17
    - try block performance I have two pieces of code performing virtually the same task. While one of them (f1) is written in a try block, hoping to catch as many exceptions as possible, the other one (f2) is not: void f1 (void) { try { do_task1(); do_task2(); do_task3(); } catch (exception1){...} catch (exception2){...} ... } void f2 (void) { do_task1(); do_task2(); do_task3(); } Does f1 imposes any necessary runtime-overhead? Is to answer this question implementation dependent? And if so, is there a general answer applies to most implementations? ben Tag: localtime() Tag: 226200
  - 18
    - Odd float C2092 compiler error VC++6 SP4 (I think SP4... how about listing SP level in Help/About, guys : Also compiler processor pack installed Anyhoo, just a small quirk with float initialization (maybe applies to other types too?) float a(1), b(2) int c(3) const float d((a + b)/float(c)); // error C2062: type 'float' unexpecte const float d((a + b)/c); // O const float d(a/float(c)); // O const float d = (a + b)/float(c); // O The first variant was the one I naturally used, and (IMHO) the most 'correct', and is the one that doesn't work... : Bil Tag: localtime() Tag: 226199
  - 19
    - AfxBeginThread I have an ATL / MFC project which creates an ATL-based dialog box. When the dialog is created I want to spawn a worker thread. The code to create the thread is: DWORD dw; CWinThread* pThread = AfxBeginThread(SendFileFTP, (LPVOID) &dw); The thread proc is defined as this: UINT CUploadProgress::SendFileFTP(LPVOID pParam) { CProgressCtrl* pBar = (CProgressCtrl*) GetDlgItem(IDC_PROGRESS1); for(int x = 0; x <= 10; x++) { pBar->SetPos(x); } return 0; } But when I try to compile, it get this error message: error C2665: 'AfxBeginThread' : none of the 2 overloads can convert parameter 1 from type 'unsigned int (void *)' I suppose it's all very obvious, but could someone help me with this? What am I doing wrong? Thanks Tag: localtime() Tag: 226194
  - 20
    - About setup.exe Respected Sir, How to create setp file in VC? Regards, Jitesh Tag: localtime() Tag: 226191
  - 21
    - Generating ascii values Can anybody tell me what header files and function name do I need to get VC to generate the numerical ascii value of a given character? TIA. Tag: localtime() Tag: 226187
  - 22
    - list-view: how to know if scroll-bars are being displayed Hello, is there a way of knowing (or being notified) if a list-view is displaying scroll bars (horizontal or vertical)??? I'd like to prevent horizontal scroll-bars from getting displayed resizing just before the list-view to prevent them from appearing, but this obviously requires knowing if they are being displayed. Bob Rock Tag: localtime() Tag: 226186
  - 23
    - How check validity of BSTR? Hi, When a BSTR is passed is as a function parameter, how to test the validity of BSTR? In case of char* pointer we check whether it is NULL before using it. Is there a similar error checking mechanism for BSTR? I tried checking the lenght, but this is not the rightway, it hangs. I am using ATL, my function get called by ExOLEDB. Thanks Ramesh Tag: localtime() Tag: 226183
  - 24
    - Re: sublass instance perhaps poor choice of wording on my part, but is there one instance of that fucntion? or one per each window subclassed? Tag: localtime() Tag: 226182
  - 25
    - LNK2001 : unresolved external symbol "public: _thiscall trying to compile with vc++ 6.0, on windows xp, I doubled checked my project settings and options but can't understand why I'm getting the following errors : Linking . . . Server.obj : error LNK2001: unresolved external symbol "public: __ this call CallImpl(void)" (??0CallImpl@@QAE@XZ) Tag: localtime() Tag: 226172
- Next
  - 1
    - vcvars32.bat not present after installing the Microsoft .NET SDK I am new to C++ and am trying to set up my machine to compile from the command line. The following program compiles and links: #include <stdio.h> main() { printf("This is my first C program.\n"); } This one doesn't: #define WIN32_LEAN_AND_MEAN #include <windows.h> #include <windowsx.h> int WINAPI WinMain(HINSTANCE hinstance, HINSTANCE hprevinstance, LPSTR lpcmdline, int ncmdshow) { MessageBoxA(NULL,"What's up, world!", "Windows PRogram", MB_OK); return(0); } Here's the error I'm getting when I compile the second program: C:\>cl winprog.c Microsoft (R) 32-bit C/C++ Standard Compiler Version 13.10.3077 for 80x86 Copyright (C) Microsoft Corporation 1984-2002. All rights reserved. winprog.c Microsoft (R) Incremental Linker Version 7.10.3077 Copyright (C) Microsoft Corporation. All rights reserved. /out:winprog.exe winprog.obj winprog.obj : error LNK2019: unresolved external symbol __imp__MessageBoxA@16 referenced in function _WinMain@16 winprog.exe : fatal error LNK1120: 1 unresolved externals From reading the documentation, it looks like I'm supposed to run a file named 'vcvars32.bat' to set up my enviromment. However, this file is not on my hard drive. I've uninstalled and reinstalled the SDK 3 times to make sure I'm not missing a setting, and the 'vcvars32.bat' file still is not on my machine. I have also loaded the Platform SDK. I am running Windows XP Home. Please help. Tag: localtime() Tag: 226167
  - 2
    - Threads Hi, I want to create a thread and this thread should wait some messages and behave accordingly... Lets say I derived a class from CWinThread.. I think the execution point is determined by the function that will be passed as an argument to the AfxBeginThread function.. UINT MyThreadFunc(LPVOID lParam) CMyThread *myThread = (CMyThread *) AfxBeginThread(MyThreadFunc,NULL, THREAD_PRIORITY_NORMAL,0,0); Now I want to post some messages to myThread by PostThreadMessage.. I have already defined message handlers for some user messages #define WM_USER_THREAD_UPDATE_PROGRESS (WM_USER+0x102) ON_MESSAGE(WM_USER_THREAD_UPDATE_PROGRESS, OnThreadUpdateProgress) it seems I will handle this messages into MyThreadFunc with GetMessage and PeekMessage and after TranslateMessage and DispatchMessage OR this messages will come to the PreTranslateMessage of CMyThread..(?) if I will handle messages in MyThreadFunc then the function will look like this.. UINT MyThreadFunc(LPVOID lParam) { while (GetMessage(...)) { //if message is destroy thread, then quit.. //else TranslateMessage(...) DispatchMessage(...) } } the syntax may not be correct.. but whose message pump GetMessage function gets messages? I mean if I had two thread with the same function, what will happen? I hope I can explain what i thought:) if preTranslateMessage gets the messages, the there will not need for MyThreadFunc, so it should wait until the thread is terminated???! Please tell me I am wrong or not.. Thanks anyway.. Tag: localtime() Tag: 226166
  - 3
    - How to launch an Executable from within memory Hi All , I am writing a program that inputs an executable ,compresses it and outputs an exe in which the input compressed exe has been packed.The Output exe when executed , is supposed to uncompress the original exe and then Launch this exe from memory without writing it to the disk. Can anybody help me as to how to launch an exe that has been read into a memory buffer...? Thanks Jeffrey Tag: localtime() Tag: 226162
  - 4
    - UNICODE vs _UNICODE First off, how come there is both a _UNICODE and UNICODE symbol used in the Win32 API? Second off, what is the distinction, if any? I've noticed that for builds to work w/o errors, I need to either have both defined or neither. So, anyone feeling descriptive? I'd really like to know which I should officially be using in code where I need to detect whether building with or w/o it (i.e. #ifdef UNICODE vs #ifdef _UNICODE). Thanks. -- Kendall Gifford ======================================== WEB: http://kendall.jedis.com/ EMAIL: [REPLY TO NEWSGROUP PLEASE] ======================================== Tag: localtime() Tag: 226159
  - 5
    - Inline methods Hi all, I have always defined inline methods for a class in a header file (either the header in which the method was declared, or in a separate one for the sake of more readable library headers). So I would end up with something like: ////// some_class.h ////// class SomeClass { void someInlineMethod() { // Do stuff } void someNormalMethod(); }; ////// some_class.cpp ////// #include "some_class.h" void SomeClass::someNormalMethod() { // Do more stuff } A while back, I came across some C++ code specifically for MSVC that actually defined methods in the .cpp file as inline, like so: ////// some_class.h ////// class SomeClass { void someInlineMethod(); void someNormalMethod(); }; ////// some_class.cpp ////// #include "some_class.h" inline void SomeClass::someInlineMethod() { // Do stuff } void SomeClass::someNormalMethod() { // Do more stuff } When I try to do this in MSVC.Net, I sometimes get a linking error saying something to the effect that the linker cannot find the method that I declared as inline (sorry, I don't have the exact error message in front of me). Other times, it works fine, although I don't know for sure that the method is actually being inlined. Can anyone shed some light as to the true way to define inline methods, preferrably in a platform-independent sort of way? Dave Tag: localtime() Tag: 226158
  - 6
    - Create() Not sure if this is the place for this question but it is as good a place as any. I have a multi-threaded application (up to 65 worker threads). I was wondering how to debug my problem. when I do the following from the masterthread(called from timer interrupt) everything works ok, however if I try it in my worker thread(trying to speed up the code execution) I get an Access Violation exception thrown. Code: CMyClient m_client; //Create an instance here if (!m_client.Create()) This is where I get the error. { ... } else { ... } the CMyClient.h file contains class CMyClient : public CSocke {... Can I not use the Create() function from a worker thread, or does it need some privlages first ?? Thanks in advance. Tag: localtime() Tag: 226154
  - 7
    - Same Window: ShellExecuteEx and Wait I am writing a command line utility that launches other command line utilities. The problem is that if I use ShellExecuteEx and WaitForSingleObject the program creates a new window and all the output from the child process is lost when the window is closed. Is there a way to launch and wait for a program so the output is on the same window? Tag: localtime() Tag: 226152
  - 8
    - Version Number Format Okay, I know that Microsoft, as a standard, uses the following format for version numbers (dotted quad notation): Major.Minor.Build.Revision (example 1.15.0015.0) Also, I know that often this version information is stored in a binary form in a double word, such as a REG_DWORD in the system registry. So, I have a helper class that reads either DWORDs or string representations of a version number and then provides checked access to either one of the four fields, Major, Minor, Build, or Revision, and finally allows you to read the whole version number as a string or DWORD. This is so that I can easily read in version info as a DWORD or string from the registry or a file and then do comparisons. To finalize everything, I'd like to make sure that I'm packing/unpacking my four fields into and out of the DWORD correctly. Does anyone know Microsoft's format? I know Build needs least 12 bits (from some version numbers I've seen) but I'm not sure on others. Any help appreciated. Thanks. -- Kendall Gifford ======================================== WEB: http://kendall.jedis.com/ EMAIL: [REPLY TO NEWSGROUP PLEASE] ======================================== Tag: localtime() Tag: 226151
  - 9
    - sublass instance i subclass three windows from another app with my own function in a hook (function is called MySpecialProc. question: is there just one instance of MySpecialProc? i believe this to be the case...or does windows do any spawning for each instance of each window i subclass? Tag: localtime() Tag: 226145
  - 10
    - VC++ book/site recommendations Hi, Can anyone recommend some books or sites for a newbie for : *C++ programming *C++ windows programming My programming experience is 5 yrs in Delphi. Thank you in advance, Steve-O Tag: localtime() Tag: 226142
  - 11
    - need help using GetAsyncKeyState() I'm making an application plugin and I need to be able to detect if certain keys are pressed. I've included window.h and am using methods declared in it fine IE: OutputDebugString() when I add this code: if ( GetAsyncKeyStfate(10) & 0x8000 ) { // virtual key is down MSGBOXINFO("Key pressed"); } I get linker errors about unresolved external symbol __imp__GetAsyncKeyState@4 I'm not sure what I need to do about this, I can see if it was an undeclared identifier error, but missing symbol? Any ideas? Thanks- Steve Tag: localtime() Tag: 226141
  - 12
    - stopping WM_DESTROY i am subclassing a window....what can i do to stop the WM_DESTROY? return 1? is that safe? thanks ahead daniel Tag: localtime() Tag: 226140
  - 13
    - Linking vith visual c++ 6.0 Hello. How to when linking IDE himself to include nessery lib files?? Dem Tag: localtime() Tag: 226137
  - 14
    - Know Disk Type? HELP! I am working with Windows 2000 software RAID (-0) with 3ware RAID card to implement a hot swap capability. Now As a new disk is inserted, I will have to check the status of the disk, such as "Dynamic Disk""Basic Disk""Offline""Online" and so on. Of course I use SetupDi command to disable or enable disk drives during this process. Can anyone tell me how I can know such state or type of disks, currently I am interested in Disk 1 and 2. Thank you in advance. Mark T Tag: localtime() Tag: 226133
  - 15
    - Array of function pointer that points to return ... Suppose I have : void f1() { TRACE("f1\n"); }; void f2() { TRACE("f2\n"); }; void Dummy() { return; } void (*f[3]) (); f[0] = f1; f[1] = f2; f[2] = Dummy; I want the f[2] call to be a return (call do nothing). Is there a way to make this without defining a Dummy function that just return. Something like f[2] = void (*) () return; Tag: localtime() Tag: 226128
  - 16
    - Regarding SerializeElements and byte swapping Hi, This is regarding SerializeElements. SerializeElements does a bit-wise read or write of the elements if (ar.IsStoring()) ar.Write((void*)pElements, nCount * sizeof(TYPE)); else ar.Read((void*)pElements, nCount * sizeof(TYPE)); Does this(bit-wise read/write) eliminate endian issues. I mean if I store ints in a container, serialize it and send it across the n/w(to a big endian env); would there be endian issues; would I have to do byte swapping? I heard that the stream operators >> and << do byte swapping internally. Kindly help. Thanks and Regards, M Shetty Tag: localtime() Tag: 226126
  - 17
    - clock_t clock(void); Good day all I need to benchmark some code on different machines, and compare their performance to the same routines run on an FPGA. What I use currently is the above routine (clock_t clock(void);) within a MFC framework. My question: Does the above routine return the exact amount of time required by the routine to complete by accessing an onboard clock? Should I try to get access to an onboard processor realtime clock? Any suggestions Thank you Tag: localtime() Tag: 226124
  - 18
    - graphics How to open full screen window without visible standard ( minimize, maximize, close ) controls for displaying graphics? Dem Tag: localtime() Tag: 226117
  - 19
    - recommended methode for allocating dynamic memory Hello everybody! what is the recommended methode for dynamically allocating memory? I plan to release it in the class-destructor. Thanks & Regards Tag: localtime() Tag: 226114
  - 20
    - error LNK2005: _DllMain@12 already defined Hi I have a MFC dll that has a method that takes CString as parameter. If i include that in a ATL dll and compile it , it give a compilation error saying "Undeclared Identified CString". So i included Afxwin.h in the StdAfx.h of the ATL dll and then included my header file. But now when i compile it . it throws a linker error error LNK2005: _DllMain@12 already defined What is the problem. How to include a MFC dll inside a ATL dll . Can anybody help me?? Tag: localtime() Tag: 226111
  - 21
    - SysListView32 Greetings, I'm using VC++. I would like to create a listview on my main window. I tried using the following code, but CreateWindowEx returned zero: hWnd2 = CreateWindowEx(0x200, "SysListView32", "", 0x50000001, 10, 10, 200, 200, hWnd, NULL, hInst, NULL); If I replace "SysListView32" with "button", a button will be created. So you can be sure that all my other code and the variables are fine. What is wrong with my code? Is there a non-mfc vc++ tutorial on the Internet? Thanx in advance... Simon Tag: localtime() Tag: 226106
  - 22
    - Idle Hi All, I was looking for mouse and keyboard idleness. First I thought that I must take help of hooks then i found a api GetLastInputInfo(..). But the problem is that this api code does not compile. I am on Win2k. According to msdn it must work but it is not. What wrong i might have done? Any idea Tag: localtime() Tag: 226104
  - 23
    - Compile for different platforms I want to include SNMP support in my program, it requires mgmtapi.lib and snmpapi.lib, they only works in Windows2000/XP. I can use GetVersionEx() to determine target OS at run time and enable/disable SNMP support accordingly, however, it's more than that, the program can't even run in Windows98. How do I link the libraries in such a way that the program doesn't error out when run on unsupported OS? Tag: localtime() Tag: 226101
  - 24
    - Window handle from a console app Hi, Does anyone know how can a console app get a handle to its console window? Thanks, Nick Tag: localtime() Tag: 226090
  - 25
    - About data type conversion Respected Sir, How toconvert one type of value into another type in VC? Basically I want to convert Long to char *. Regards, Jitesh Tag: localtime() Tag: 226088

Hi,

Does localtime() function automatically corrects for daylight savings time?

Actually I am showing the system time in my UI and it should adjust for
daylight saving time and show it accordingly. Do I need to call __tzset()?
If I dont call this, does it take the deafult?

Thanks in advance,
Sateesh.

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RE: localtime() by anonymous

anonymous
Tue Mar 02 08:31:09 CST 2004

sure does
take a look at the tm_isdst value in the tm struct.

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RE: localtime() by anonymous

anonymous
Mon May 17 13:36:08 CDT 2004

Yes, isDST does work, but it doesn't seem to reflect the current value when it is in the 2 AM hour

Looking at the Adjust Date/Time clock it shows <TZ> Daylight Savings Time, and the TM struct show
the correct values such as tm_hour = 1, etc yet tm_isdst shows 0

Any ideas

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