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How to convert _TCHAR * to string?

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- 1
  - Visual Studio C++ >> bit shiftingi wanna shift the unsigned int e.g.
    from
    BINARY: 0110 0000 0011 0000 1101 0000 0000 0001
    into
    BINARY: 1000 0000 0000 0100 0000 0000 0000 0000
    
    with the code i << 18;
    
    but it seems that it won't detected the leading zero during shifting ?
    and wrongly give me
    0100 0000 0000 0100 0000 0000 0000 0000
    
    any solution for that ?~
- 2
  - MFC >> When user trying to quit program while thread is runningHi guys, I have a memory leak problem. When I tried to quit program by click
    'x' at top right corner while my ui thread and its child worker thread are
    running, debugger display following messages:
    
    The thread 0x570 has exited with code 0 (0x0).
    The thread 0x574 has exited with code 0 (0x0).
    Detected memory leaks!
    Dumping objects ->
    c:\work\MyProject\MyUIthread.cpp(396) : {717} normal block at 0x00C17CA8, 4
    bytes long.
    a CWinThread object at $00C17BF0, 112 bytes long
    c:\work\MyProject\MyUIthread.cpp(96) : {550} normal block at 0x00C17FC0, 12
    bytes long.
    Data: < > CD CD CD CD CD CD CD CD CD CD CD CD
    c:\work\MyProject\MyUIthread.cpp(94) : {549} normal block at 0x00C17398, 12
    bytes long.
    Data: < 0 > C2 30 00 00 F2 C9 00 02 D1 01 00 00
    c:\work\MyProject\mainfrm.cpp(746) : {535} client block at 0x00C17E40,
    subtype 0, 128 bytes long.
    a CMyUIThread object at $00C17E40, 128 bytes long
    Object dump complete.
    The thread 0x304 has exited with code 0 (0x0).
    The program c:\work\MyProject\Debug\MyProject.exe' has exited with code 0
    (0x0).
    
    In my program, ui thread is created when certain selection made from combo
    box and shutdown, deleted when combo box selection. Ui thread creates one
    worker thread for communication with embeded system via COM port. So in a
    normal situation(combo box changed), shutdown prccedure is like this: First,
    main frame PostThreadMessage(QUIT) to ui thread. Ui thread set 'running'
    flag to FALSE to let worker thread exit its while(running) loop. Just before
    exit, worker thread sends another QUIT packet to embeded system to power off
    then PostMessage(THREAD_QUIT) to main frame. Message handler in main frame
    wait for m_hThread and delete pThread. Debugger doesn't complain about this
    normal shutdown and the program looks just fine when I try without debugger.
    Can I neglect this situation?
    Where can I insert this shutdown procedure when program is forced to quit
    while threads running?
    Any suggestion appreciated. Cheers
- 3
  - MFC >> questin about enum all threads of a processHi all:
    I know I can enum the threads of a process using toolhelper lib in win2k
    or win9x. but the lib is not availble at Winnt. instead of toolhelper,
    microsoft supply the performance data library, but the data struct is too
    complex. Can I have another way to get all threads handle of a process?
    Thank advance.
    sincecely
- 4
  - Visual Basic [VB] >> Fill Combobox with DVI would like to fill a combobox with the values of one
    column of the dataview I am using. When I set it up the
    way I expect it would be, I get every row in the combobox
    says: System.Data.DataRowView
    
    If I click on one, it navigates to the right place. Any
    idea how I would get the System.Data.DataRowView to show
    the actual values in the column?
    
    Thanks
- 5
  - Visual Basic [VB] >> Share source files among projects?Is it possible to share a single source file among two or more Projects in a
    Solution?
    
    I'm not talking about a DLL, just a .vb file that might contain a class or
    module with common code to be compiled into each project. That way this
    code can be updated once instead of makiing duplicate changes to identical
    code within each project.
    
    I have tried putting the source in a common folder, then using Add Existing
    Item to add it to each project, but that creates a separate copy of the file
    in each project folder. Then I'm back to keeping changes syncronized
    manually.
    
    I have been searching VB.NET help and newsgroups, but either this can't be
    done or I am asking the wrong questions.
    
    thanks
    
    Dick
- 6
  - MFC >> Debug Assertion FailedFirst the problem, then I'll attempt to post all of the info I think may be pertinent. I get the following message when I try to register a dll on a machine other than the one I built it on
    
    Debug Assertion Failed
    
    Program: C:\B7\DV7333\bin32\REGSVR32.EX
    File: olelink.cp
    Line: 29
    
    When developing, it builds fine and I am able to register it on the development machine
    
    This is an MFC dll which implements the class wizard generated: DllGetClassObject, DllCanUnloadNow, and DllRegisterServer functions
    
    I have used depends.exe on the target machine and all it's dependcies are accounted for
    
    I have another VB created dll that provides a few classes that are used in this problem dll. I access those via the following statement: #import "vbdll.dll" no_namespac
    This stuff I dont really understand, but it appears to work. I do receive the following warning message during the mfc dll build
    
    d:\program files\microsoft visual studio\vc98\include\comip.h(31) : warning C4042: '_IID' : has bad storage clas
    d:\program files\microsoft visual studio\vc98\include\comip.h(57) : see reference to class template instantiation '_com_IIID<struct _vbdllObject,&struct __s_GUID _GUID_22b44757_efef_4c0b_be51_32138fe6eb04>' being compile
    S:\VC++\dllProject\dllCode.cpp(328) : see reference to class template instantiation '_com_ptr_t<class _com_IIID<struct __vbdllObject,&struct __s_GUID _GUID_22b44757_efef_4c0b_be51_32138fe6eb04>>' being compile
    
    The VB dll IS registered and IS in the path on the target machine
    
    Thanks in advance for any insight into this problem
    Jeremy
- 7
  - Visual Basic [VB] >> Math.Round and SQL Server RoundI'm trying to determine the best approach for rounding in an application I'm
    building. Unfortunately it appears as though SQL Server and VB.NET round in
    different ways.
    
    SQL Server
    
    select round(123.465,2)
    
    returns
    
    123.470
    
    Which I think is correct.
    
    VB.NET
    
    Math.Round(123.465, 2)
    
    returns
    
    123.46
    
    Through online help I have read that the VB.NET way of doing it is "called
    rounding to nearest, or banker's rounding."
    
    I guess my first question is what is correct (when determining Tax or Sale
    prices)?
    
    My next question is what is the best approach for standarizing? Can I make
    SQL Server act like VB.NET or VB.NET act like SQL Server?
    
    Are there additional functions either in SQL Server or VB.NET that I am
    missing?
    
    Also it appears as if the behavior is consistent throughout the VB.NET
    environment (formatcurrency and formatpercent).
    
    There are certain parts of the applicaiton where it makes sense for SQL
    Server to calculate some of the numbers and other where it makes sense for
    VB.NET to.
    
    Thanks
- 8
  - MFC >> Fatloss computer programI have been using this computer program for a couple weeks now and i am very pleased with the results so far. its a software fatloss program, if your looking for a diet/weightloss plan i reccomend you check this place out first: http://fatloss9.50webs.com
- 9
  - Visual Basic >> Profiler in Team Edn for S/W Dev--Any successes?I am struggling to get any useful performance data out of the profiling tool
    in Visual Studio Team Edition for Software Developers.
    
    On a simple command-line app, it reports bogus call paths in release and
    release with debug info builds. With a debug build, the results are so
    compromised by the overhead of calling inline functions that they are useless.
    
    With a real-world, complex app, it either runs out of memory trying to
    analyze the profile data or crashes. This is for an app that runs in 1.2
    seconds normally.
    
    It won't even run the app if you select sampling; profiling must be done
    with instrumented code.
    
    I've used MetroWerks Hierarchical Profiler, Rational Quantify and Compware
    DevPartner, and all have provided useful information that have enabled me to
    track down, understand and fix performance problems. Not so Visual Studio
    Team Edition. Is there some trick that makes it work usefully?
    
    Thanks,
    Rich
- 10
  - Visual Basic >> How to change the font for a Form (Me.Font = "MURASU5-System" --> Not an English Font) in run time?Hi,
    
    Can you help me to change the font name for a VB form in run time ?
    
    Me.Font = "MURASU5-System" (This is not an English font.)
    
    I am able to set this font for all the other controls expect for the FORM
    caption.
    
    Thanks and Regards,
    
    Peri
- 11
  - Visual Basic >> When using a Frame my embeded contols loose their text?I have a frame with 3 controls on it. 1 text box and 2 option controls. The
    text control gets it's text from an INI file and the Option buttons get their
    captions from this same ini file when the program loads. For some reason when
    the program loads I loose the text and captions? I have been playing around
    with the frame settings but have had no luck so I must be missing something
    simple right?
- 12
  - MFC >> Numeric data in a CString objectHi,
    how can i establish if a CString object contains numeric data or something
    else (letters,....)?
- 13
  - Visual Basic [VB] >> Serial Comm ProblemI wrote a program that communicate with SerialComm. In every 300
    milliseconds, my program continuously send & receive data via the serial
    port once the program starts.
    
    My program is once in a while, the serial port seems corrupted because when
    my data is sent, it doesn't go through the serial port, so as same to
    receive process. In order to fix this, I have to close the port and reopen
    the port again.
    
    Why?!! Is there any way to fix this problem or I have to check for
    corruption port, then I reopen the serial port again?
    
    Thanks!
    
    Michael
- 14
  - Mcse >> OT: Beta 2Beta 2 is here!!!
    
    Windows Server 2007 beta 2
    Office 2007 beta 2
    Vista beta 2
    
    All should be available to anyone, I think!
    
    And yeah, Virtual Server R2 SP1 beta 1, too!
    
    What a great time to be a nerd!
- 15
  - Visual Basic [VB] >> ADO in VB.NETHi
    
    I want to apply ADO object in VB.NET. Can I bind the textbox, editmask,
    combo box and grid control to the ADO recordset?
    
    Any sample would be appreciated.
    
    Thanks...Douglas

Author

Message

wamax

Posted: Wed Oct 18 15:10:38 CDT 2006

Top

Visual Studio C++ >> How to convert _TCHAR * to string? I need to check command line parameter
if (argv[1] == option) .... // option is a string variable

And argv is defined as _TCHAR* argv[] by MSVS wizard.
The code don't work and it's very hard to convert argv[1] to string.

Visual Studio339

Doug

Posted: Wed Oct 18 15:10:38 CDT 2006

Top

Visual Studio C++ >> How to convert _TCHAR * to string? On Wed, 18 Oct 2006 11:48:01 -0700, nkw <EMail@HideDomain.com>
wrote:

>I need to check command line parameter
>if (argv[1] == option) .... // option is a string variable
>
>And argv is defined as _TCHAR* argv[] by MSVS wizard.
>The code don't work and it's very hard to convert argv[1] to string.

What's the type of "option"? I'm going to assume it's std::string, and if
so, the variable "option" needs to be a TCHAR-based string, e.g. a tstring
defined as below:

typedef std::basic_string<TCHAR> tstring;

--
Doug Harrison
Visual C++ MVP

Ulrich

Posted: Thu Oct 19 02:15:53 CDT 2006

Top

Visual Studio C++ >> How to convert _TCHAR * to string? nkw wrote:
> I need to check command line parameter
> if (argv[1] == option) .... // option is a string variable
>
> And argv is defined as _TCHAR* argv[] by MSVS wizard.
> The code don't work and it's very hard to convert argv[1] to string.

You can replace the non-standard tmain(int, TCHAR**) with a standard
main(int, char**) and then it works. Another alternative is to use a
TCHAR-based string all the way through. Yet another one is to convert
strings accordingly and compare then.

Uli

Index ‹ Visual Studio ‹ Visual Studio C++

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- 1
  - Visual Studio C++ >> Problem with covariant return typesThe following code won't compile (error C2555: 'B::f': overriding virtual
    function return type differs and is not covariant from 'A::f') unless I
    moved the definitions of X and Y to before the definitions of A and B
    respectively. Now I can understand that the compiler doesn't know that Y is
    derived from X when parsing B but at the very least this is a very confusing
    error message and I'm not sure it shouldn't be accepted.
    
    Rob.
    
    class X;
    
    class A
    {
    public:
    
    virtual X* f () const = 0;
    };
    
    class X
    {
    public:
    };
    
    class Y;
    
    class B : public A
    {
    public:
    
    virtual Y* f () const;
    };
    
    class Y : public X
    {
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    };
- 2
  - Visual Studio C++ >> Simple question about dllimportI've got a h file for a usb device that has definitions of function exported
    from a dll. An example would be (with #defines translated):
    
    extern "C" __declspec(dllimport) int __stdcall FT_Open(int deviceNumber, int
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    but where is the actual dll filename specified so my program knows where to
    find it?
    
    Thanks,
    Michael
- 3
  - Visual Basic >> Icon size problemHello,
    
    My program's frmAbout has an icon. The ico file has the same icon in two
    sizes, 16 x 16 and 32 x 32 pixels. I don't want the smaller one to be
    displayed to users. So, the size should be 32 x 32 pixels.
    
    Anyway, on some computers the icon will be displayed in size 16 x 16
    pixels. How could I prevent this?
    
    The ico file is dislayed in picIcon which is a PictureBox element. Its
    ScaleMode is "Pixel", AutoDraw is "False", and AutoSize is "False".
    
    The ScaleMode value of frmAbout is "Twip".
    
    What should I do?
    
    Thanks,
    Mika
- 4
  - Visual Basic >> ErrorsDear All,
    
    Does anyone know of a third party tool that can add error handling code to
    all subs/functions in a class or module to a specified format which then can
    be customised to deal with the errors likely to be raised at the code?
    
    I have been neglectful in adding error handling code and comments as I go as
    the project has now grown and other developers are going to be using my
    code. I know that it is bad practice and I have learned my lesson, but any
    advice, other than its your own fault, would be most welcome. If I have to
    create my own add-in for the future, can anyone suggest how I can
    programatically find the start and end of a sub to add the suggested code?
    
    Thanks again.
    
    Alastair MacFarlane
- 5
  - Visual Basic >> "Reading emails from All Public folders"Hi,
    
    I am developing a vb application to read the latest arrived mail from
    "All public folders" through outlook. This should be dynamic as the
    folders increase in the "All Public folders", The program should read
    the folders accordingly.
    Can anyone help on this.
- 6
  - Visual Basic >> compiling the entire thingHi guys...
    
    Here's a quick query...
    
    I have almost finished making my first project in vb...
    
    But I am confused...as to how should i compile the entire project and make a
    setup ...
    i know how to make the exe files...
    
    I searched through MSDN but couldn't get much info...
    
    And does the setup do everything ?...I mean what about the DSNs I created in
    Control Panel, and what about my entire database ?...is that also properly
    installed with the setup ?...
    
    And how do i start doing it ?....
    
    Please help...
    
    thanks..
    
    anupam
    anupam@anupamjain.com
- 7
  - MFC >> How to implement transparent static on dialog box?I would implement a transparent static text to show
    the status text of the progress on dialog box.
    The background of dialog box is not default system color.
    
    Originally, I set the bk mode of the static to transparent mode
    and return a NULL_BRUSH in OnCtlColor() of dialog class.
    It can fit my requirement if the static text is not changed.
    
    However, the old text is not erased if the static text is changed.
    I think I need to override some function to erase background first.
    Which function do I need to override to erase the background?
    or I need to implement my own static class to do so? and how?
    
    Best Regards
    
    Jackal Huang
- 8
  - Visual Basic >> Programmatically write symbolsIs there a way to programmatically write sysmbols to an xp access db back end ?
- 9
  - VB Scripts >> force clicking on an objectHello,
    How can I force clicking on an object,
    if I have the following code, and I want to do click on event_view -
    How can I do that ?
    
    Thanks :)
    
    The code :
    -------------
    <input type="hidden" id="event_view" onclick = "myview" />
    ...
- 10
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    A-Z about programming languages like Java J2EE, C++, code
    implementation guides and more.
    http://operatingsys.blogspot.com/
    
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    through websites and blogs.
    Lakhs of common people are earning hundreds of dollars through online
    advertising.
    It also has other products like chatting,google earth,google talk etc.
    Genuine Internet jobs for all. Earn Unlimited income.visit
    
    http://googlepromisesyou.blogspot.com/
- 11
  - Visual Basic >> Calling a Macro from another workbookHi,
    
    Yes I have read up on the different ways of doing this, but I always
    come to the same problem.
    In my current code I have the line
    
    Application.Run ("T1Seed1.xls!Main")
    
    Which works fine (it calls the "Main" macro in T1Seed2.xls). But once
    the "main" macro is run, the rest of my current macro doesn't run.
    
    Here is my code (missing some variables thata bit above, but thats
    ok).
    
    Dim ESDUFile, RootPath, WorkBookToOpen, SheetToOpen, BuildingHeight As
    String
    
    ESDUFile = Sheets("Rotate spf red").Cells(10, 9)
    RootPath = ESDUFile
    
    Do While Right(RootPath, 1) <> "\"
    RootPath = Left(RootPath, Len(RootPath) - 1)
    Loop
    
    BuildingHeight = 225
    SeedScale = 345
    For A = 1 To NumTowers
    For B = 1 To 2
    SheetToOpen = "T" & A & "Seed" & B & ".xls"
    WorkBookToOpen = RootPath & SheetToOpen
    
    FileCopy ESDUFile, WorkBookToOpen
    
    Range("C22:C57").Copy
    Workbooks.Open WorkBookToOpen
    Windows(SheetToOpen).Activate
    Sheets("RWDI_Factors").Select
    
    Range("H67").Select
    ActiveSheet.Paste
    Range("D7") = SeedScale
    Range("D6") = BuildingHeight
    Application.Run ("T1Seed1.xls!Main")
    
    Sheets("Factors").Select
    
    Application.CutCopyMode = False 'closes the clipboard with massive
    amounts of data thus does not prompt to save or close
    ActiveWorkbook.Close True ' false means not to save, true means to
    save and close
    Windows("MR_Setup_underDevelopment_profiles.xls").Activate
    
    Next B
    Next A
    
    It works fine up until right after the Application.Run line where it
    will not continue on (ie it will not select the "Factors" sheet or do
    anything after).
    
    Is there another way I can do this that will allow the original macro
    to continue running after it calls the macro in the other workbook?
    
    Any help would be appreciated.
    
    Jack
- 12
  - MFC >> ActiveX in MFCI'm trying to create an ActiveX control in MFC.
    I have a library which was provided for the development of an MFC program
    NOT ActiveX.
    
    I made a sample ActiveX and included the library under
    Project->Settings->Link Tab but after building the ActiveX and viewing the
    control in Test Container, no methods were exposed??
    
    Am I doing something wrong or will the library NOT work with an ActiveX???
    
    Thanks
    David
- 13
  - VB Scripts >> Check for enabled NIC and execute commandHello all. I am trying to write a script with minimal vbs knowledge. I have
    downloaded scriptomatic 2.0 and have made some progress but have come to a
    head.
    
    Background:
    We use WSUS for all local and remote users in an NT4 domain (soon to be
    migrated to AD). Remote users connect via Cisco VPN client. The clients
    installs as a network device, is disable when not in use and enables when
    the GUI is loaded. The detection frequency setting for WSUS runs at
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    Can I use wsh/vbs to monitor the connection or would this need to work on a
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    ' start script
    
    On Error Resume
    
    Const wbemFlagReturnImmediately = &h10
    Const wbemFlagForwardOnly = &h20
    
    arrComputers = Array("localhost")
    For Each strComputer in arrComputers
    WScript.Echo
    WScript.Echo "======================"
    WScript.Echo "Computer: "& strComputer
    WScript.Echo "======================"
    
    Set objWMIService = GetObject("winmgmts:\\" & strComputer & "\root\CIMV2")
    Set colItems = objWMIService.ExecQuery("SELECT * FROM
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    wbemFlagReturnImmediately
    + wbemFlagForwardOnly)
    
    If objItem.ServiceName="CVirtA" And objItem.NetConnectionStatus="2" Then
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- 14
  - Mcse >> About MCSE Exami want to write MCSE Exam, what do i need? and where am i suppose to write it?
- 15
  - MFC >> VC2008 dpiaware manifest?When you create a new MFC application with the wizard in VC2008 you will see
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    name='Microsoft.Windows.Common-Controls' version='6.0.0.0'
    processorArchitecture='*' publicKeyToken='6595b64144ccf1df' language='*'\"")
    
    What do you write in stdafx.h to add the dpiaware manifest (se below) the
    same way?
    
    <?xml version='1.0' encoding='UTF-8' standalone='yes'?>
    <assembly xmlns="urn:schemas-microsoft-com:asm.v1" manifestVersion="1.0">
    <asmv3:application xmlns:asmv3="urn:schemas-microsoft-com:asm.v3">
    <asmv3:windowsSettings
    xmlns="http://schemas.microsoft.com/SMI/2005/WindowsSettings">
    <dpiAware>true</dpiAware>
    </asmv3:windowsSettings>
    </asmv3:application>
    </assembly>
    
    Best regards from Gaute