use NO_GLYPH as an indicator to ignore background glyph
Changes to be committed: modified: doc/window.doc modified: src/display.c
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@@ -1,4 +1,4 @@
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NetHack 3.6 window.doc $NHDT-Date: 1433806574 2015/06/08 23:36:14 $ $NHDT-Branch: master $:$NHDT-Revision: 1.40 $
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NetHack 3.6 window.doc $NHDT-Date: 1433901374 2015/06/10 01:56:14 $ $NHDT-Branch: master $:$NHDT-Revision: 1.42 $
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Introduction
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@@ -200,7 +200,8 @@ print_glyph(window, x, y, glyph, bkglyph)
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-- bkglyph is a background glyph for potential use by some
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graphical or tiled environments to allow the depiction
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to fall against a background consistent with the grid
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around x,y.
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around x,y. If bkglyph is NO_GLYPH, then the parameter
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should be ignored (do nothing with it).
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char yn_function(const char *ques, const char *choices, char default)
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-- Print a prompt made up of ques, choices and default.
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