Hi
I am working on library
https://github.com/okbob/ncurses-st-menu, where I try to implement shadow under a window. I use mvwchgat function for colour changes. Yesterday I found a issue. This function doesn't works with chars passed by ACS_xx macros. The unicode chars has not this problem.
When I apply mvwchgat on hline, then result is 'x' char.
I wrote test case - see a attachment, please.
I have ncurses 6.1 patch patch: 20180224
Is it bug? Is there some alternative solution, how to change colours and attributes on specified positions?
Best regards
Pavel Stehule