glDrawElements - render primitives from array	data

glDrawElements
	glDrawElements(mode, type, indices[]) -> None

void glDrawElements( GLenum mode,
                     GLsizei count,
                     GLenum type,
                     const GLvoid *indices )

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.

count	   Specifies the number	of elements to be rendered.

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

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

glDrawElements specifies multiple geometric primitives with
very few subroutine calls. Instead of	calling	a GL function
to pass each individual 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 count sequential
elements from	an enabled array, starting at indices 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	array
is enabled, each is used. If GL_VERTEX_ARRAY is not enabled,
no geometric primitives are constructed.

Vertex attributes that are modified by glDrawElements	have
an unspecified 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 remain well defined.

glDrawElements is available only if the GL version is	1.1 or
greater.
glDrawElements is included in	display	lists. If
glDrawElements is entered into a display list, the necessary
array	data (determined by the	array pointers and enables) is
also entered into the	display	list. Because 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.

GL_INVALID_ENUM is generated if mode is not an accepted
value.

GL_INVALID_VALUE is generated	if count is negative.

GL_INVALID_OPERATION is generated if glDrawElements is
executed between the execution of glBegin and	the
corresponding	glEnd.

glArrayElement, glColorPointer, glDrawArrays,
glEdgeFlagPointer,
glGetPointerv, glIndexPointer, glInterleavedArrays,
glNormalPointer,
glTexCoordPointer, glVertexPointer