Use this to get a wstring, then call c_str() and you have a const wchar_t*:
const wstring convert_to_utf16(const string& utf8_string)
{
// get length
int length = MultiByteToWideChar(CP_UTF8, 0, utf8_string.c_str(),
static_cast<int>(utf8_string.size()), nullptr, 0);
if(!(length > 0))
return wstring();
else
{
wstring result;
result.resize(static_cast<string::size_type>(length));
if(MultiByteToWideChar(CP_UTF8, 0, utf8_string.c_str(),
static_cast<int>(utf8_string.size()),
&result[0], static_cast<int>(result.size())) == 0 )
throw runtime_error("Failure to execute toUTF16: conversion failed.");
else
return result;
}
}
2013/10/31 Incongruous <[email protected]>
> Does anyone know of a way to convert a string to a 'const wchar_t*'
> I need this conversion for the 3rd parameter in MessageBox(...).
> MessageBox(NULL,
> apstr.c_str(), // Thius works
> (const wchar_t*)this->getMessage().c_str(),// getMessage()
> returns a std:string, it does not work!!
> MB_OK);
>
> TIA
>
>
>
> ------------------------------------------------------------------------------
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> developers love is also attractive to malware creators. Download this white
> paper to learn more about secure code signing practices that can help keep
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------------------------------------------------------------------------------
Android is increasing in popularity, but the open development platform that
developers love is also attractive to malware creators. Download this white
paper to learn more about secure code signing practices that can help keep
Android apps secure.
http://pubads.g.doubleclick.net/gampad/clk?id=65839951&iu=/4140/ostg.clktrk
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