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Questions tagged [tchar]

A #define for either char or wchar_t, used for porting ancient windows applications

TCHAR and related preprocessor-defines are used in two places:

  1. Porting ancient windows application to modern UTF-16 APIs.
  2. Describing APIs available in both ANSI and UTF-16 flavor.

If neither of the above fits for you, you really should not be using it:
Is TCHAR still relevant?

#ifdef _UNICODE
    #define TCHAR wchar_t
    // many others
#else
    #define TCHAR char
    // many others
#endif
164 questions
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proper style for interfacing with legacy TCHAR code

I'm modifying someone else's code which uses TCHAR extensively. Is it better form to just use std::wstring in my code? wstring should be equivalent to TString on widechar platforms so I don't see an issue. The rationale being, its easier to use a…
Dustin Getz
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StringCbPrintf Example Not Working

Using Multibyte character set in building the example from MSDN we get the "initializer is not a constant" error for the last line. VS10 SP1, no CLR. #define arraysize 30 TCHAR pszDest[arraysize]; size_t cbDest = arraysize *…
Laurie Stearn
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Concatenating strings of different types in C++

How can I concatenate the following char and TCHAR variables in C++? TCHAR fileName[50]; TCHAR prefix[5] = "file_"; TCHAR ext[4] = ".csv"; char *id[10]; generateId(*id); The generateId(char *s) function simply generates a random string. I need to…
matt
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Weird characters in a std::vector

Trying to get all sub directories, and eventually all files in sub directories, and I'm passing a std::vector as a reference to a function that actually gets all of the directories. I can cout the cFileName inside the function but once it returns…
Siver
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tchar safe functions -- count parameter for UTF-8 constants

I'm porting a library from char to TCHAR. the count parameter of this fragment, according to MSDN, is the number of multibyte characters, not the number of bytes. so, did I get this right? My project properties in VC9 say 'use unicode character set'…
Dustin Getz
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1 answer

C++ LoadLibrary Not working

if (LoadLibrary(L"d:\\cwebpage.dll")) MessageBox(0, L"Loaded", L"ERROR", MB_OK); else MessageBox(0, L"Error", L"ERROR", MB_OK); Its not working, I have tried if (LoadLibrary(_T("d:\\cwebpage.dll"))) //#include if…
Wasim A.
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5 answers

C++ windows how to convert 'unsigned int' to 'TCHAR *'?

I am in new to C++ on windows. Can you please tell me how to convert unsigned int to TCHAR *?
Gana
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How am I using CA2W incorrectly?

Please could someone explain why this does not work? char *test = "test"; _TCHAR *szTest = CA2W(test); And please tell me what I should be doing instead. Instead of giving me equal text, it's giving me: ﻾﻾﻾﻾﻾﻾﻾﻾﻾﻾﻾﻾﻾﻾﻾﻾﻾﻾﻾﻾﻾﻾﻾﻾﻾﻾﻾﻾﻾﻾﻾﻾
Nick Bolton
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How to disable Microsoft's decorations of tchar.h in Visual Studio?

By default Microsoft's Visual Studio is using and defines main as int _tmain(int argc, _TCHAR* argv[]). This can be usefull but not always. How to disable this in default new project? UPDATE I want to create empty projects with simple…
Suzan Cioc
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Why address difference between Unicode is incorrect here?

Look at the code below, #include #include int main() { TCHAR szStr[] = TEXT("C++中文你好"); printf("sizeof(szStr) = %u\n", sizeof(szStr)); //16 LPTSTR lp = _tcschr(szStr, TEXT('好')); _tprintf(TEXT("szStr = %p, lp = %p…
SZYoo
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TCHAR is used in Win32 api .But It is enough to use char or string there.But why TCHAR?

I am learning about win32 api .The TCHAR datatype is used in it for defining stings that are used for registering the class.Why is TCHAR used there?
Abhiram
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What is TCHAR and how does it differ from WCHAR?

This question should've had an answer nowadays here, but there is nothing explaining what exactly TCHAR is on stackoverflow (all I found is an explanation of the difference between TCHAR and _TCHAR). All I know is that TCHAR and _TCHAR are…
Kaiyaha
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C++ TEXT macro of TCHAR*

I am trying to create a TCHAR* variable by using TCHAR* example = TEXT("example"); but it wont even compile and says: A value of type const wchar_t* cannot be used to initialize an entity of type TCHAR*. What should I do?
Mary
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C++ Microsoft example to get and display the user name doesn't compile

I want to get the user name in C++ in the most easiest way. My program is only designed for Windows. I would like to use the Microsoft example. I copy paste the code example in a fresh Visual Studio 2019 but I have errors on TEXT instruction: a…
user13339912
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2 answers

Why error C6386 buffer overrun with strsafe.h StringCch functions?

So I ran an Analyze in VS 2017 with my C++ code. It gives me a buffer overrun with the following: TCHAR *sTemp = new TCHAR[5](); if (sTemp) StringCchCopy(sTemp, 5, L"0123456789"); When I step through the code, sTemp is "0123", with the 4th…
JeffR
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