GLsizei coun )

PARAMETERS
       mode  Specifies  what  kind of primitives to render.  Symbolic constants
             GL_POINTS,      GL_LINE_STRIP,       GL_LINE_LOOP,       GL_LINES,
             GL_TRIANGLE_STRIP,  GL_TRIANGLE_FAN,  GL_TRIANGLES, GL_QUAD_STRIP,
             GL_QUADS, and GL_POLYGON are accepted.

       coun  Specifies the number of elements to be rendered.

       _param3
             Specifies the type of the  values  in  _param4.  Must  be  one  of
             GL_UNSIGNED_BYTE, GL_UNSIGNED_SHORT, or GL_UNSIGNED_INT.

       _param4
             Specifies a pointer to the location where the indices are stored.

DESCRIPTION
       glDrawElements  specifies  multiple  geometric  primitives with very few
       subroutine calls. Instead of calling a GL function to pass each individ‐
       ual  vertex,  normal,  texture  coordinate, edge flag, or color, you can
       prespecify separate arrays of vertexes, normals, and so on and use  them
       to   construct   a   sequence  of  primitives  with  a  single  call  to
       glDrawElements.

       When glDrawElements is called, it uses coun sequential elements from  an
       enabled  array, starting at _param4 to construct a sequence of geometric
       primitives. mode specifies what kind of primitives are constructed,  and
       how  the array elements construct these primitives. If more than one ar‐
       ray is enabled, each is used. If GL_VERTEX_ARRAY is not enabled, no geo‐
       metric primitives are constructed.

       Vertex  attributes  that are modified by glDrawElements have an unspeci‐
       fied value after glDrawElements returns. For example, if  GL_COLOR_ARRAY
       is   enabled,  the  value  of  the  current  color  is  undefined  after
       glDrawElements executes. Attributes that aren't modified maintain  their
       previous values.

NOTES
       glDrawElements is available only if the GL version is 1.1 or greater.

       glDrawElements  is  included  in display lists. If glDrawElements is en‐
       tered into a display list, the necessary array data (determined  by  the
       array  pointers  and enables) is also entered into the display list. Be‐
       cause the array pointers and enables are client-side state, their values
       affect  display lists when the lists are created, not when the lists are
       executed.

ERRORS
       GL_INVALID_ENUM is generated if mode is not an accepted value.

       GL_INVALID_VALUE is generated if coun is negative.