Sophie: php-manual-pt_BR-5.2.4-1mdv2008.1 noarch

php-manual-pt_BR-5.2.4-1mdv2008.1.noarch.rpm

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>imagecolorallocate</H1
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><P
>    (PHP 3, PHP 4, PHP 5)</P
>imagecolorallocate&nbsp;--&nbsp;Aloca uma cor para uma imagem</DIV
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><A
NAME="AEN82897"
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><H2
>Descrição</H2
>int <B
CLASS="methodname"
>imagecolorallocate</B
> ( resource image, int red, int green, int blue )<BR
></BR
><P
>&#13;    <B
CLASS="function"
>imagecolorallocate()</B
> retorna um identificador 
    de cor representando a cor composta pelos componentes
    <ACRONYM
CLASS="acronym"
>RGB</ACRONYM
>. Os argumentos <CODE
CLASS="parameter"
>image</CODE
>
    é o retorno da função <A
HREF="function.imagecreate.html"
><B
CLASS="function"
>imagecreate()</B
></A
>. <CODE
CLASS="parameter"
>red</CODE
>, <CODE
CLASS="parameter"
>green</CODE
> and
    <CODE
CLASS="parameter"
>blue</CODE
> são os valores de vermelho, azul e verde,
    respectivamente da cor solicitada. Estes parâmetros são
    inteiros entre 0 e 255 ou hexadecimais entre 0x00 e 0xFF.
    <B
CLASS="function"
>imagecolorallocate()</B
> deve ser utilizada para
    cada cor que será usada na imagem representada
    por <CODE
CLASS="parameter"
>image</CODE
>.
   </P
><DIV
CLASS="note"
><BLOCKQUOTE
CLASS="note"
><P
><B
>Nota: </B
>
     A primeira utilização da função <B
CLASS="function"
>imagecolorallocate()</B
> 
     prenche a cor do fundo.
    </P
></BLOCKQUOTE
></DIV
><P
>&#13;    <DIV
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><P
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><A
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><code><font color="#000000">
<font color="#0000BB">&lt;?php<br /><br /></font><font color="#FF8000">// define o fundo como vermelho<br /></font><font color="#0000BB">$background </font><font color="#007700">= </font><font color="#0000BB">imagecolorallocate</font><font color="#007700">(</font><font color="#0000BB">$im</font><font color="#007700">, </font><font color="#0000BB">255</font><font color="#007700">, </font><font color="#0000BB">0</font><font color="#007700">, </font><font color="#0000BB">0</font><font color="#007700">);<br /><br /></font><font color="#FF8000">// define algumas cores<br /></font><font color="#0000BB">$white </font><font color="#007700">= </font><font color="#0000BB">imagecolorallocate</font><font color="#007700">(</font><font color="#0000BB">$im</font><font color="#007700">, </font><font color="#0000BB">255</font><font color="#007700">, </font><font color="#0000BB">255</font><font color="#007700">, </font><font color="#0000BB">255</font><font color="#007700">);<br /></font><font color="#0000BB">$black </font><font color="#007700">= </font><font color="#0000BB">imagecolorallocate</font><font color="#007700">(</font><font color="#0000BB">$im</font><font color="#007700">, </font><font color="#0000BB">0</font><font color="#007700">, </font><font color="#0000BB">0</font><font color="#007700">, </font><font color="#0000BB">0</font><font color="#007700">);<br /><br /></font><font color="#FF8000">// do jeito hexadecimal<br /></font><font color="#0000BB">$white </font><font color="#007700">= </font><font color="#0000BB">imagecolorallocate</font><font color="#007700">(</font><font color="#0000BB">$im</font><font color="#007700">, </font><font color="#0000BB">0xFF</font><font color="#007700">, </font><font color="#0000BB">0xFF</font><font color="#007700">, </font><font color="#0000BB">0xFF</font><font color="#007700">);<br /></font><font color="#0000BB">$black </font><font color="#007700">= </font><font color="#0000BB">imagecolorallocate</font><font color="#007700">(</font><font color="#0000BB">$im</font><font color="#007700">, </font><font color="#0000BB">0x00</font><font color="#007700">, </font><font color="#0000BB">0x00</font><font color="#007700">, </font><font color="#0000BB">0x00</font><font color="#007700">);<br /><br /></font><font color="#0000BB">?&gt;</font>
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>
   </P
><P
>&#13;    Retorna -1 se falhar.
   </P
><P
>&#13;    Veja também <A
HREF="function.imagecolorallocatealpha.html"
><B
CLASS="function"
>imagecolorallocatealpha()</B
></A
> e
    <A
HREF="function.imagecolordeallocate.html"
><B
CLASS="function"
>imagecolordeallocate()</B
></A
>.
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