A question about drawing wchar_t with SDL_TTF

given a std::wstring variable named m_text, I do the following :

size_t s = 2 * sizeof(wchar_t)*(m_text.size() + 1);
char * convertedChar = (char*) malloc(s);

size_t res=0;
ppw_wcstombs(&res, convertedChar, s, m_text.c_str(), m_text.size());

convertedChar[m_text.size()] = 0;

SDL_Surface *msg1Sur = TTF_RenderUTF8_Blended_Wrapped(m_font->get_ttf_font(), convertedChar, m_fontcolor, (Uint32)m_force_width);

this works nicely as long as the input string doesn?t contain unicode characters. As soon as I use something like a curly quote (?) the drawing stops right before that character

can anyone point me what I?m doing wrong ?

replying to myself? as usual, you can search for a solution a whole day and when you finally give up and ask for help, you bump into the solution while closing tabs on stackoverflow :slight_smile:

the solution is dead simple :

typedef std::basic_string<Uint16, std::char_traits<Uint16>, std::allocator<Uint16> > u16string;
u16string utext( m_text.begin(), m_text.end() );
SDL_Surface *msg1Sur = TTF_RenderUNICODE_Blended_Wrapped(m_font->get_ttf_font(), utext.c_str(), m_fontcolor, (Uint32)m_force_width); 

i hope this helps others> On 07 Nov 2016, at 12:34, jeroen clarysse <@Jeroen_Clarysse> wrote:

given a std::wstring variable named m_text, I do the following :

size_t s = 2 * sizeof(wchar_t)(m_text.size() + 1);
char * convertedChar = (char
) malloc(s);

size_t res=0;
ppw_wcstombs(&res, convertedChar, s, m_text.c_str(), m_text.size());

convertedChar[m_text.size()] = 0;

SDL_Surface *msg1Sur = TTF_RenderUTF8_Blended_Wrapped(m_font->get_ttf_font(), convertedChar, m_fontcolor, (Uint32)m_force_width);

this works nicely as long as the input string doesn?t contain unicode characters. As soon as I use something like a curly quote (?) the drawing stops right before that character

can anyone point me what I?m doing wrong ?


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