Far-East Asian language (Chinese, Japanese and Korean; CJK) needs special handling in console.
Especially a fullwidth character (mk_wcwidth_cjk(ch) == 2) needs a double width space. A fullwidth character on the console window is treated as a pair of a leading byte and a trailing byte (COMMON_LVB_LEADING_BYTE and COMMON_LVB_TRAILING_BYTE). CORE-12451
It retrieves the handle to the desktop assigned to the specified
thread belonging to a console application, which is going to be
where the input thread of this console is.