Searches a string the first character that has a strong direction, according to the Unicode bidirectional algorithm.
the text to process
length of text in bytes (may be -1 if text is nul-terminated)
The direction corresponding to the first strong character. If no such character is found, then PANGO_DIRECTION_NEUTRAL is returned.
1.4
Searches a string the first character that has a strong direction, according to the Unicode bidirectional algorithm.