Specifies the array or buffer pointer to be returned. Symbolic constants GL_COLOR_ARRAY_POINTER, GL_EDGE_FLAG_ARRAY_POINTER, GL_FOG_COORD_ARRAY_POINTER, GL_FEEDBACK_BUFFER_POINTER, GL_INDEX_ARRAY_POINTER, GL_NORMAL_ARRAY_POINTER, GL_SECONDARY_COLOR_ARRAY_POINTER, GL_SELECTION_BUFFER_POINTER, GL_TEXTURE_COORD_ARRAY_POINTER, or GL_VERTEX_ARRAY_POINTER are accepted.
Returns the pointer value specified by pname.
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glGetPointervreturns pointer information. pname is a symbolic constant indicating the pointer to be returned, and params is a pointer to a location in which to place the returned data.For all pname arguments except GL_FEEDBACK_BUFFER_POINTER and GL_SELECTION_BUFFER_POINTER, if a non-zero named buffer object was bound to the GL_ARRAY_BUFFER target (see glBindBuffer) when the desired pointer was previously specified, the pointer returned is a byte offset into the buffer object's data store. Buffer objects are only available in OpenGL versions 1.5 and greater.