Background characters and attributes don't need to be kept per character
cell, as they are merged when characters are added. Remove the per cell
storage and clarify the manual page. Pointed out by

Background characters and attributes don't need to be kept per character
cell, as they are merged when characters are added. Remove the per cell
storage and clarify the manual page. Pointed out by ruibiao@.

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PR/25397: David A. Holland: bug in second loop of resizeterm
(win used uninitialized), hidden by wrong gcc appeasal.

gcc -Wuninitialized

Use _cursesi_screen->winlistp (depracating __winlist)

Stop refresh(subwin) doing refresh on the other subwin's created before it.
(If nothing else the cursor would get left in the wrong place).
Fix some if (!flags & MASK) checks.

Fix resize of windows with subwins.
Let window size be given as a -ver number => lines from bottom.
Fix trace calls of pointers
(approved by Brett Lumn)

resize subwindows when a window is resized, otherwise the subwin has
pointers into the ether.
(approved by christos)

Only reset flags if the "window" is not a pad.

Fix lint nits mainly with the len parameter type in hash_more.

* Added new function idcok - this closes PR 10802
* Added sentinels to the line structures when in debug mode to try
to pick up data overwrite problems, if they occur.

Remove extraneous tabs from blank lines.

Add code to allow resizing of windows and the underlying terminal.