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OpenGL ES 1.0 and EGL 1.0 reference manual and man pages (written by
Claude Knaus, based on OpenGL SI man pages).

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook V4.2//EN" "DTD/docbook/docbookx.dtd">

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<refentry id="eglCreateWindowSurface">

  <refmeta>
    <refentrytitle>eglCreateWindowSurface</refentrytitle>
    <manvolnum>3G</manvolnum>
  </refmeta>

  <refnamediv>
    <refname>eglCreateWindowSurface</refname>
    <refpurpose>
      create a new <acronym>EGL</acronym> window surface
    </refpurpose>
  </refnamediv>

  <refsynopsisdiv>
    <title>C Specification</title>

    <funcsynopsis>
      <funcprototype>
        <funcdef>EGLSurface <function>eglCreateWindowSurface</function></funcdef>
        <paramdef>EGLDisplay <parameter>display</parameter></paramdef>
        <paramdef>EGLConfig <parameter>config</parameter></paramdef>
        <paramdef>NativeWindowType <parameter>native_window</parameter></paramdef>
        <paramdef>EGLint const * <parameter>attrib_list</parameter></paramdef>
      </funcprototype>
    </funcsynopsis>
  </refsynopsisdiv>

  <refsect1>
    <title>Parameters</title>

    <variablelist>
      <varlistentry>
        <term><parameter>display</parameter></term>
        <listitem><para>Specifies the EGL display connection.</para></listitem>
      </varlistentry>

      <varlistentry>
        <term><parameter>config</parameter></term>
        <listitem>
          <para>Specifies the EGL frame buffer configuration that defines the
          frame buffer resource available to the surface.</para>
        </listitem>
      </varlistentry>

      <varlistentry>
        <term><parameter>native_window</parameter></term>
        <listitem><para>Specifies the native window.</para></listitem>
      </varlistentry>

      <varlistentry>
        <term><parameter>attrib_list</parameter></term>
        <listitem><para>
          Specifies window surface attributes.
          Must be <constant>NULL</constant> or empty
          (first attribute is <constant>EGL_NONE</constant>).
        </para></listitem>
      </varlistentry>
    </variablelist>
  </refsect1>
    
  <refsect1>
    <title>Description</title>

    <para>
      <function>eglCreateWindowSurface</function> creates an EGL
      window surface and returns its handle.
      If <function>eglCreateWindowSurface</function> fails to create a
      window surface, <constant>EGL_NO_SURFACE</constant> is
      returned.
    </para>

    <para>
      Any EGL rendering context that was created with respect to 
      <parameter>config</parameter> can be used to render into the surface.
      Use <citerefentry><refentrytitle>eglMakeCurrent</refentrytitle></citerefentry>
      to attach an EGL rendering context to the surface.
    </para>

    <para>
      Use
      <citerefentry><refentrytitle>eglQuerySurface</refentrytitle></citerefentry>
      to retrieve the ID of <parameter>config</parameter>.
    </para>

    <para>
      Use <citerefentry><refentrytitle>eglDestroySurface</refentrytitle></citerefentry>
      to destroy the surface.
    </para>
  </refsect1>
    
  <refsect1>
    <title>Errors</title>

    <para>
      <constant>EGL_NO_SURFACE</constant> is returned if creation of
      the context fails.
    </para>

    <para>
      <constant>EGL_BAD_DISPLAY</constant> is generated if
      <parameter>display</parameter> is not an EGL display connection.
    </para>
    
    <para>
      <constant>EGL_NOT_INITIALIZED</constant> is generated if
      <parameter>display</parameter> has not been initialized.
    </para>

    <para>
      <constant>EGL_BAD_CONFIG</constant> is generated if
      <parameter>config</parameter> is not an EGL frame buffer configuration.
    </para>

    <para>
      <constant>EGL_BAD_NATIVE_WINDOW</constant> may be generated if
      <parameter>native_window</parameter> is not a valid native window.
    </para>

    <para>
      <constant>EGL_BAD_ATTRIBUTE</constant> is generated if
      <parameter>attrib_list</parameter> contains an invalid window attribute
      or if an attribute value is not recognized or is out of range.
    </para>
    
    <para>
      <constant>EGL_BAD_ALLOC</constant> is generated if there are not
      enough resources to allocate the new surface.
    </para>
    
    <para>
      <constant>EGL_BAD_MATCH</constant> is generated if the attributes of
      <parameter>native_window</parameter> do not correspond to
      <parameter>config</parameter> or if
      <parameter>config</parameter> does not support rendering to windows
      (the <constant>EGL_SURFACE_TYPE</constant> attribute does not contain
      <constant>EGL_WINDOW_BIT</constant>).
    </para>
  </refsect1>
    
  <refsect1>
    <title>See Also</title>

    <para>
      <citerefentry><refentrytitle>eglDestroySurface</refentrytitle></citerefentry>,
      <citerefentry><refentrytitle>eglChooseConfig</refentrytitle></citerefentry>,
      <citerefentry><refentrytitle>eglGetConfigs</refentrytitle></citerefentry>,      <citerefentry><refentrytitle>eglMakeCurrent</refentrytitle></citerefentry>,
      <citerefentry><refentrytitle>eglQuerySurface</refentrytitle></citerefentry>
    </para>
  </refsect1>

</refentry>