Re: refresh before wrefresh

[Dan Gookin]

Patch date info:

#define NCURSES_VERSION_PATCH 20081102

I don't know the specific patch for the older version the code ran well under, 
though it was version 5.5

Thanks,
DAN

On Aug 23, 2010, at 12:44 PM, Thomas Dickey wrote:

> On Sun, Aug 22, 2010 at 10:27:03PM -0700, Dan Gookin wrote:
>> Is a refresh() required to display a window before a wrefresh() is used?
>> 
>> I have a program that makes four windows within the terminal window.  Each
>> window is created with newwin().  Text is written with mvwaddstr() to each
>> window, followed by a wrefresh() command on that window.  But the text
>> doesn't show up unless there is an initial refresh() command given earlier in
>> the code.  Is that normal behavior?  The reason I'm asking is that the code
>> worked for older versions of Ncurses, but doesn't work now.
> 
> I suppose that could be a bug.  Lacking that last sentence, my offhand
> view of the code is that initscr() leaves stdscr with a pending erase
> which could complicate things.
> 
> I'll dig into it to see if I can spot when a change might have occurred.
> 
> What's the version of ncurses (patch date) that you're using?
> 
>> Also, internally, doesn't wrefresh() call the same function as refresh()?
> 
> yes, it does that.  refresh() is normally a macro, though there's a non-macro
> version of it, doing the same thing.
> 
> -- 
> Thomas E. Dickey <address@hidden>
> http://invisible-island.net
> ftp://invisible-island.net