Convert LPWSTR to string

Question

Function CommandLineToArgvW is giving me commandline arguments in LPWSTR type. I need these arguments in string. Would someone please tell me how to convert LPWSTR to string?
I'm using mingw.

`std::wstring someParam = std::wstring(argv[0]);` – Chris O Sep 17 '12 at 14:00 — Chris O, Sep 17 '12 at 14:00

score 32 · Answer 1 · edited Oct 18 '16 at 14:38

32

std::string MyString = CW2A (L"LPWSTR STRING");

You need to include atlstr.h for CW2A

edited Oct 18 '16 at 14:38

Raxvan

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answered Sep 17 '12 at 13:54

Chris Dargis

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The `CW2A` macro converts a wide character string to an ASCII string, so why are you sticking the result back into a `wstring`? – Praetorian Sep 17 '12 at 14:04
What do you #include for CW2A? – Erik Aronesty Mar 05 '13 at 17:00
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@ErikAronesty `atlstr.h` – Louis Waweru Jun 19 '14 at 04:57
This will not go well for japanese characters. – sergiol Jan 29 '21 at 02:11

score 9 · Accepted Answer · edited May 23 '17 at 12:17

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Try to use following API functions :

And comparision of both methods WideCharToMultiByte() vs. wcstombs()

edited May 23 '17 at 12:17

Community

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answered Sep 17 '12 at 13:56

rkosegi

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score 1 · Answer 3 · answered Nov 22 '18 at 05:51

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Let's say yout LPWSTR variable is myVarL:

wstring ws( myVarL ); 
string myVarS = string( ws.begin(), ws.end() );

should make what you want

answered Nov 22 '18 at 05:51

Lambert Duran

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This will not properly deal with most of the possible characters in a wide string – M.M Nov 22 '18 at 06:04

score 0 · Answer 4 · answered Jul 30 '22 at 17:33

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This is how you can convert LPWSTR to string:

// Assume you have initialized the lpwstr variable
std::wstring wString;
wString.append(&lpwstr[0]);
std::string convertedString(wString.begin(), wString.end());

Easy peasy

answered Jul 30 '22 at 17:33

Haumikj Haumer

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Please explain how this answer is any better than the one by Lambert Duran several years ago. And also explain how this "conversion" deals with characters outside the basic ASCII set. – TheUndeadFish Jul 30 '22 at 17:37
Lambert's solution was easy. This one is easy peasy. Duh. – M Katz Nov 14 '22 at 04:57

Convert LPWSTR to string

4 Answers4