For example, the OpenGL API defines an enumeration with symbolic
constants whose C names are GL_POINTS, GL_LINES, GL_TRIANGLES, and so
-on. Collectively they form the BeginMode enumeration type. To access
+on. Collectively they form the PrimitiveType enumeration. To access
these constants in Figl, apply the constant name to the enumeration
-type: @code{(begin-mode triangles)}.
+type: @code{(primitive-type triangles)}.
Bitfields are similar, though the constructor accepts multiple symbols
and produces an appropriate mask. In the GLUT API there is the