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>FcCharSetFirstPage</H1
><DIV
CLASS="REFNAMEDIV"
><A
NAME="AEN2219"
></A
><H2
>Name</H2
>FcCharSetFirstPage -- Start enumerating charset contents</DIV
><DIV
CLASS="REFSYNOPSISDIV"
><A
NAME="AEN2222"
></A
><H2
>Synopsis</H2
><DIV
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><P
></P
><A
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></A
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><PRE
CLASS="FUNCSYNOPSISINFO"
>#include <fontconfig/fontconfig.h>
</PRE
></TD
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></TABLE
><P
><CODE
><CODE
CLASS="FUNCDEF"
>FcChar32 <TT
CLASS="FUNCTION"
>FcCharSetFirstPage</TT
></CODE
>(const FcCharSet *<TT
CLASS="PARAMETER"
><I
>a</I
></TT
>, FcChar32[FC_CHARSET_MAP_SIZE] <TT
CLASS="PARAMETER"
><I
>map</I
></TT
>, FcChar32 *<TT
CLASS="PARAMETER"
><I
>next</I
></TT
>);</CODE
></P
><P
></P
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><DIV
CLASS="REFSECT1"
><A
NAME="AEN2234"
></A
><H2
>Description</H2
><P
>Builds an array of bits in <TT
CLASS="PARAMETER"
><I
>map</I
></TT
> marking the
first page of Unicode coverage of <TT
CLASS="PARAMETER"
><I
>a</I
></TT
>.
<TT
CLASS="PARAMETER"
><I
>*next</I
></TT
> is set to contains the base code point
for the next page in <TT
CLASS="PARAMETER"
><I
>a</I
></TT
>. Returns the base code
point for the page, or <CODE
CLASS="CONSTANT"
>FC_CHARSET_DONE</CODE
> if
<TT
CLASS="PARAMETER"
><I
>a</I
></TT
> contains no pages. As an example, if
<TT
CLASS="FUNCTION"
>FcCharSetFirstPage</TT
> returns
<TT
CLASS="LITERAL"
>0x300</TT
> and fills <TT
CLASS="PARAMETER"
><I
>map</I
></TT
> with
<TABLE
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><TD
><PRE
CLASS="LITERALLAYOUT"
>0xffffffff 0xffffffff 0x01000008 0x44300002 0xffffd7f0 0xfffffffb 0xffff7fff 0xffff0003</PRE
></TD
></TR
></TABLE
>
Then the page contains code points <TT
CLASS="LITERAL"
>0x300</TT
> through
<TT
CLASS="LITERAL"
>0x33f</TT
> (the first 64 code points on the page)
because <TT
CLASS="PARAMETER"
><I
>map[0]</I
></TT
> and
<TT
CLASS="PARAMETER"
><I
>map[1]</I
></TT
> both have all their bits set. It also
contains code points <TT
CLASS="LITERAL"
>0x343</TT
> (<TT
CLASS="PARAMETER"
><I
>0x300 + 32*2
+ (4-1)</I
></TT
>) and <TT
CLASS="LITERAL"
>0x35e</TT
> (<TT
CLASS="PARAMETER"
><I
>0x300 +
32*2 + (31-1)</I
></TT
>) because <TT
CLASS="PARAMETER"
><I
>map[2]</I
></TT
> has
the 4th and 31st bits set. The code points represented by
<TT
CLASS="LITERAL"
>map[3]</TT
> and later are left as an excercise for the
reader ;).
</P
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