Color Blindness. Color blindness, or color vision deficiency, is the inability or decreased ability to see color, or perceive color differences, under normal lighting conditions.There is no actual blindness.olor Blindness. Color blindness, or color vision deficiency, is the inability or decreased ability to see color, or perceive color differences, under normal lighting conditions. There is no actual blindness.
QString converts the const char * data into Unicode using the fromUtf8 () function. In all of the QString functions that take const char * parameters, the const char * is interpreted as a classic C-style '\0'-terminated string encoded in UTF-8. It is legal for the const char * parameter to be 0.static] QString QString:: fromUcs4 (const uint * unicode, int size = -1). Returns a QString initialized with the first size characters of the Unicode string unicode (ISO-10646-UCS-4 encoded). If size is -1 (default), unicode must be terminated with a 0. This function was introduced in Qt 4.2.
character (4) size_t find_last_of (char c, size_t pos = npos) const; Find character in string from the end. Searches the string for the last character that matches any of the characters specified in its arguments.