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Diffstat (limited to 'doc/html/man/curs_bkgd.3x.html')
| -rw-r--r-- | doc/html/man/curs_bkgd.3x.html | 36 |
1 files changed, 19 insertions, 17 deletions
diff --git a/doc/html/man/curs_bkgd.3x.html b/doc/html/man/curs_bkgd.3x.html index 0e3dca8..be9dc1e 100644 --- a/doc/html/man/curs_bkgd.3x.html +++ b/doc/html/man/curs_bkgd.3x.html @@ -1,6 +1,6 @@ -<!-- +<!-- **************************************************************************** - * Copyright 2018-2019,2020 Thomas E. Dickey * + * Copyright 2018-2020,2021 Thomas E. Dickey * * Copyright 1998-2015,2017 Free Software Foundation, Inc. * * * * Permission is hereby granted, free of charge, to any person obtaining a * @@ -27,7 +27,7 @@ * sale, use or other dealings in this Software without prior written * * authorization. * **************************************************************************** - * @Id: curs_bkgd.3x,v 1.30 2020/02/02 23:34:34 tom Exp @ + * @Id: curs_bkgd.3x,v 1.32 2021/06/17 21:30:22 tom Exp @ --> <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN"> <HTML> @@ -56,8 +56,10 @@ <STRONG>void</STRONG> <STRONG>bkgdset(chtype</STRONG> <EM>ch</EM><STRONG>);</STRONG> <STRONG>void</STRONG> <STRONG>wbkgdset(WINDOW</STRONG> <STRONG>*</STRONG><EM>win,</EM> <EM>chtype</EM> <EM>ch</EM><STRONG>);</STRONG> + <STRONG>int</STRONG> <STRONG>bkgd(chtype</STRONG> <EM>ch</EM><STRONG>);</STRONG> <STRONG>int</STRONG> <STRONG>wbkgd(WINDOW</STRONG> <STRONG>*</STRONG><EM>win</EM><STRONG>,</STRONG> <STRONG>chtype</STRONG> <EM>ch</EM><STRONG>);</STRONG> + <STRONG>chtype</STRONG> <STRONG>getbkgd(WINDOW</STRONG> <STRONG>*</STRONG><EM>win</EM><STRONG>);</STRONG> @@ -65,8 +67,8 @@ </PRE><H3><a name="h3-bkgdset">bkgdset</a></H3><PRE> The <STRONG>bkgdset</STRONG> and <STRONG>wbkgdset</STRONG> routines manipulate the background of the - named window. The window background is a <STRONG>chtype</STRONG> consisting of any com- - bination of attributes (i.e., rendition) and a character. The + named window. The window background is a <STRONG>chtype</STRONG> consisting of any + combination of attributes (i.e., rendition) and a character. The attribute part of the background is combined (OR'ed) with all non-blank characters that are written into the window with <STRONG>waddch</STRONG>. Both the character and attribute parts of the background are combined with the @@ -97,9 +99,9 @@ This implementation, like SVr4 curses, does not store the background and window attribute contributions to each cell separately. It updates - the rendition by comparing the character, non-color attributes and col- - ors contained in the background. For each cell in the window, whether - or not it is blank: + the rendition by comparing the character, non-color attributes and + colors contained in the background. For each cell in the window, + whether or not it is blank: <STRONG>o</STRONG> The library first compares the <EM>character</EM>, and if it matches the current character part of the background, it replaces that with the @@ -107,20 +109,20 @@ <STRONG>o</STRONG> The library then checks if the cell uses color, i.e., its color pair value is nonzero. If not, it simply replaces the attributes - and color pair in the cell with those from the new background char- - acter. + and color pair in the cell with those from the new background + character. <STRONG>o</STRONG> If the cell uses color, and that matches the color in the current background, the library removes attributes which may have come from the current background and adds attributes from the new background. - It finishes by setting the cell to use the color from the new back- - ground. + It finishes by setting the cell to use the color from the new + background. <STRONG>o</STRONG> If the cell uses color, and that does not match the color in the current background, the library updates only the non-color - attributes, first removing those which may have come from the cur- - rent background, and then adding attributes from the new back- - ground. + attributes, first removing those which may have come from the + current background, and then adding attributes from the new + background. If the background's character value is zero, a space is assumed. @@ -136,8 +138,8 @@ </PRE><H2><a name="h2-RETURN-VALUE">RETURN VALUE</a></H2><PRE> These functions are described in the XSI Curses standard, Issue 4. It - specifies that <STRONG>bkgd</STRONG> and <STRONG>wbkgd</STRONG> return <STRONG>ERR</STRONG> on failure, but gives no fail- - ure conditions. + specifies that <STRONG>bkgd</STRONG> and <STRONG>wbkgd</STRONG> return <STRONG>ERR</STRONG> on failure, but gives no + failure conditions. The routines <STRONG>bkgd</STRONG> and <STRONG>wbkgd</STRONG> return the integer <STRONG>OK</STRONG>, unless the library has not been initialized. |