120 lines
5.1 KiB
XML
120 lines
5.1 KiB
XML
<?xml version="1.0" encoding="UTF-8"?>
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<!DOCTYPE book PUBLIC "-//OASIS//DTD DocBook MathML Module V1.1b1//EN"
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"http://www.oasis-open.org/docbook/xml/mathml/1.1CR1/dbmathml.dtd">
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<refentry id="glGetAttachedShaders">
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<refmeta>
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<refentrytitle>glGetAttachedShaders</refentrytitle>
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<manvolnum>3G</manvolnum>
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</refmeta>
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<refnamediv>
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<refname>glGetAttachedShaders</refname>
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<refpurpose>Returns the handles of the shader objects attached to a program object</refpurpose>
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</refnamediv>
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<refsynopsisdiv><title>C Specification</title>
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<funcsynopsis>
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<funcprototype>
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<funcdef>void <function>glGetAttachedShaders</function></funcdef>
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<paramdef>GLuint <parameter>program</parameter></paramdef>
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<paramdef>GLsizei <parameter>maxCount</parameter></paramdef>
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<paramdef>GLsizei *<parameter>count</parameter></paramdef>
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<paramdef>GLuint *<parameter>shaders</parameter></paramdef>
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</funcprototype>
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</funcsynopsis>
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</refsynopsisdiv>
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<refsect1 id="parameters"><title>Parameters</title>
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<variablelist>
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<varlistentry>
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<term><parameter>program</parameter></term>
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<listitem>
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<para>Specifies the program object to be
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queried.</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><parameter>maxCount</parameter></term>
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<listitem>
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<para>Specifies the size of the array for storing
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the returned object names.</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><parameter>count</parameter></term>
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<listitem>
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<para>Returns the number of names actually returned
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in <parameter>objects</parameter>.</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><parameter>shaders</parameter></term>
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<listitem>
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<para>Specifies an array that is used to return the
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names of attached shader objects.</para>
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</listitem>
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</varlistentry>
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</variablelist>
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</refsect1>
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<refsect1 id="description"><title>Description</title>
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<para><function>glGetAttachedShaders</function> returns the
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names of the shader objects attached to
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<parameter>program</parameter>. The names of shader objects that
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are attached to <parameter>program</parameter> will be returned
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in <parameter>shaders.</parameter> The actual number of shader
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names written into <parameter>shaders</parameter> is returned in
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<parameter>count.</parameter> If no shader objects are attached
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to <parameter>program</parameter>, <parameter>count</parameter>
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is set to 0. The maximum number of shader names that may be
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returned in <parameter>shaders</parameter> is specified by
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<parameter>maxCount</parameter>. </para>
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<para>If the number of names actually returned is not required
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(for instance, if it has just been obtained by calling
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<citerefentry><refentrytitle>glGetProgram</refentrytitle></citerefentry>),
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a value of <constant>NULL</constant> may be passed for count. If
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no shader objects are attached to
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<parameter>program</parameter>, a value of 0 will be returned in
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<parameter>count</parameter>. The actual number of attached
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shaders can be obtained by calling
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<citerefentry><refentrytitle>glGetProgram</refentrytitle></citerefentry>
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with the value <constant>GL_ATTACHED_SHADERS</constant>.</para>
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</refsect1>
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<refsect1 id="notes"><title>Notes</title>
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<para><function>glGetAttachedShaders</function>
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is available only if the GL version is 2.0 or greater.</para>
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</refsect1>
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<refsect1 id="errors"><title>Errors</title>
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<para><constant>GL_INVALID_VALUE</constant> is generated if
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<parameter>program</parameter> is not a value generated by
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OpenGL.</para>
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<para><constant>GL_INVALID_OPERATION</constant> is generated if
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<parameter>program</parameter> is not a program object.</para>
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<para><constant>GL_INVALID_VALUE</constant> is generated if
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<parameter>maxCount</parameter> is less than 0.</para>
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<para><constant>GL_INVALID_OPERATION</constant> is generated if
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<citerefentry><refentrytitle>glGetAttachedShaders</refentrytitle></citerefentry>
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is executed between the execution of
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<citerefentry><refentrytitle>glBegin</refentrytitle></citerefentry>
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and the corresponding execution of
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<citerefentry><refentrytitle>glEnd</refentrytitle></citerefentry>.</para>
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</refsect1>
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<refsect1 id="associatedgets"><title>Associated Gets</title>
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<para><citerefentry><refentrytitle>glGetProgram</refentrytitle></citerefentry>
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with argument <constant>GL_ATTACHED_SHADERS</constant></para>
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<para><citerefentry><refentrytitle>glIsProgram</refentrytitle></citerefentry></para>
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</refsect1>
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<refsect1 id="seealso"><title>See Also</title>
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<para><citerefentry><refentrytitle>glAttachShader</refentrytitle></citerefentry>,
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<citerefentry><refentrytitle>glDetachShader</refentrytitle></citerefentry></para>.
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</refsect1>
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<refsect1 id="Copyright"><title>Copyright</title>
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<para>
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Copyright <trademark class="copyright"></trademark> 2003-2005 3Dlabs Inc. Ltd.
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This material may be distributed subject to the terms and conditions set forth in
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the Open Publication License, v 1.0, 8 June 1999.
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<ulink url="http://opencontent.org/openpub/">http://opencontent.org/openpub/</ulink>.
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</para>
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</refsect1>
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</refentry>
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