L"string"

[TechResearch]

What does the L before a string makes to it?
Does it set it to Unicode string?

I have a string strMyString,
and I have to pass it to a function that expects a L"string"
how do I convert strMyString to L"string"

I can't do
strMyString = L"string"
because I get this string from other function

any insights?

 

[chipperMDW]

Yes, the L makes a string unicode. The type of the characters in a unicode string are wchar_t (which is supposed to be a distinct type, but some compilers think it's just an unsigned int). To deal with the string, you can use a C-style string of wchar_t (wchar_t *) and the functions in cwctype or wctype.h, or you can just use the wstring class, which is exactly like the "regular" string class except it holds wchar_t.

 

[TechResearch]

Thanks for the info,
looking through wchar_t documentation I found the functions mbstowcs and MultyByteToWideChar, they make the convertion to Unicode I was needing.

transforming sz to Unicode:

lenW = mbstowcs(NULL, sz, NULL);
wchar_t *d_Body = (wchar_t *)malloc(lenW * sizeof(wchar_t));
mbstowcs(d_Body, sz, lenW + 1);

 

[Pyramus]

I'd recommend using TCHARs- then it's both unicode and ansii compatible. There are tchar equivalents of all the string maniuplation functions.