-\constfunc{virtual size\_t}{FromWChar}{\param{wchar\_t *}{dst}, \param{size\_t }{dstLen}, \param{const char *}{src}, \param{size\_t }{srcLen = $-1$}}
-
-The most general function for converting a multibyte string to a wide string.
-The main case is when \arg{dst} is not \NULL and \arg{srcLen} is not $-1$: then
-the function converts exactly \arg{srcLen} bytes starting at \arg{src} into
-wide string which it output to \arg{dst}. If the length of the resulting wide
-string is greater than \arg{dstLen}, an error is returned. Note that if
-\arg{srcLen} bytes don't include \NUL characters, the resulting wide string is
-not \NUL-terminated neither.
-
-If \arg{srcLen} is $-1$, the function supposes that the string is properly
-(i.e. as necessary for the encoding handled by this conversion) \NUL-terminated
-and converts the entire string, including any trailing \NUL bytes. In this case
-the wide string is also \NUL-terminated.
-
-Finally, if \arg{dst} is \NULL, the function returns the length of the needed
-buffer.
-
-\wxheading{Return value}
-
-The number of characters written to \arg{dst} (or the number of characters
-which would have been written to it if it were non-\NULL) on success or
-\texttt{wxCONV\_FAILED} on error.