WebDec 10, 2024 · A problem about char and wchar_t. HeW 1. Dec 10, 2024, 9:11 AM. I wanna add some sounds in my programme,so I used the "PlaySound". But the problem is this. Image is no longer available. (I include the"windows.h". I use MinGW64) And then it says "cannot convert 'const wchar_t*' to 'LPCTSTR {aka const char*}' in initialization". Webcannot convert 'const wchar_t*' to 'TCHAR*' cannot convert '_TCHAR*' to 'const wchar_t*' cannot convert 'const wchar_t [15]' to 'TCHAR*' cannot convert 'TCHAR*' to 'const wchar_t*' ... 幾十個這樣的錯誤。 PS奇怪的是Google在此問題上沒有任何有用的結果。
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WebNov 7, 2011 · This puts you into undefined behavior territory. The simple fix is this: const wchar_t *GetWC (const char *c) { const size_t cSize = strlen (c)+1; wchar_t* wc = new wchar_t [cSize]; mbstowcs (wc, c, cSize); return wc; } Note that the calling code will then have to deallocate this memory, otherwise you will have a memory leak. Webwstring str = my_stringstream.str (); LPWSTR str = const_cast (str.c_str ()); Note that you do not want to do const_cast (my_stringstream.str ().c_str ()) (unless you are passing that to a function) because that will create a temporary string object, get it's pointer, convert it to a LPWSTR and then the temporary string you get ...
WebFeb 22, 2014 · Don't do that; it's not a solution. If the parameter is non-const, it means the function can change it. You don't want it changing a string's c_str(). Give the function … WebDec 5, 2008 · First of all, LPTSTR is of pointer type and it is basically equivalent to TCHAR* (assuming that is included). Note that the size of TCHAR varies based of the character encoding type. i.e. if unicode is defined, TCHAR is equal to wchar_t, otherwise it is char. Naturally, if you convert a wide character to a normal char, you can only ...
WebSep 28, 2012 · Another option is to use conversion macros: USES_CONVERSION; const WCHAR* wc = L"Hello World" ; const char* c = W2A (wc); The problem with this approach is that the memory for converted string is allocated on stack, so the length of the string is limited. However, this family of conversion macros allow you to select the code page … WebJul 7, 2015 · This API is part of python 3.0 and above and in my knowledge, there's no easy way to get this done. However, I think, you can try converting the argv to a w_char ** and then call PySys_SetArgv (). mbstowcs () may come handy in this case. For example, some pseudo-code (not tested) will look like
WebAug 5, 2012 · Include and change e.g. mbstowcs_s (&convertedChars, wcstring, origsize, orig, _TRUNCATE); to convertedChars = 1 + std::mbstowcs (wcstring, orig, newsize);. The documentation for mbstowcs_s is here, so you can contrast it with mbstowcs. – ildjarn Aug 5, 2012 at 5:52 1
WebNov 16, 2024 · error: cannot convert 'wchar_t' to 'LPCSTR' {aka 'const char'} serialPort = CreateFile(portSpecifier,GENERIC_READ GENERIC_WRITE,0,NULL,OPEN_EXISTING,0,NULL); I've read it should have something to do with Windows and UNICODE or ASCII. I made sure Atom uses UNICODE by pressing ctrl+shift+U and selecting UTF-8. I tried to #define … immigrants from italy to americaWebThere's no automatic conversion from const wchar_t* to const char*, hence the error. Your options are to: Change the function parameter to a UTF-16 ( const wchar_t*) string. … immigrants from texas to new yorkWebMar 28, 2014 · 1 If you are NOT including AtlBase.h or AtlConv.h headers, #include LPCSTR lpcszTemp = "Hello World" ; int wchars_num = MultiByteToWideChar ( CP_UTF8 , 0 , lpcszTemp , -1, NULL , 0 ); WCHAR* wstr = new WCHAR [wchars_num]; MultiByteToWideChar ( CP_UTF8 , 0 , lpcszTemp , -1, wstr , wchars_num ); // ...Other … immigrants from mexico 2021WebThis has worked but I am now left with a C style string that won't conform. I have tried the L and putting it in TEXT() but the L gets added to the variable name -- not the string -- if I use TEXT(). I have tried making it a TCHAR but then it complains that it cannot convert a TCHAR to a char *. What options am I left with? I know C and C++ are ... immigrants get free medicationWebNov 29, 2007 · If this is your first visit, be sure to check out the FAQ by clicking the link above. You may have to register or Login before you can post: click the register link above to proceed. To start viewing messages, select the forum that you want to visit from the selection below. immigrants from mexico 2019WebFeb 3, 2015 · I am trying to compile code taken from visual studio c++ with mingw but i keep on getting similar conversion problems. @. main.cpp:82: error: cannot convert 'const WCHAR** {aka const wchar_t**}' to 'LPCWSTR {aka const wchar_t*}' for argument '2' to 'int MessageBoxW (HWND, LPCWSTR, LPCWSTR, UINT)'. MessageBox (appWindow, … list of streaming services 2022WebJun 24, 2024 · I agree with you in the broad sense, but in this specific situation it doesn't seem to make much sense. The signature being implemented is std::vector get_files_recursive(const … immigrants from poland to ellis island