void glDrawElements (GLenum mode, GLsizei count, GLenum type, const GLvoid *indices);
void glDrawPixels (GLsizei width, GLsizei height, GLenum format, GLenum type, const GLvoid *pixels);
void glEdgeFlag (GLboolean flag);
void glDrawElements (GLenum mode, GLsizei count, GLenum type, const GLvoid *indices);
void glDrawPixels (GLsizei width, GLsizei height, GLenum format, GLenum type, const GLvoid *pixels);
void glEdgeFlag (GLboolean flag);