
9.6. The Designer module 349
9.6.4 GLdesign
The provision of a window into the working-volume that provides an orthographic
view from a us er -d efi n ed direction is provided in the external DLL “gldesign”.
This DLL is built with its own project in th e design solution. The DLL’s exported
function AttachViewOpenGL() is called by the Designer to create an OpenGL
window as a child of the main application s window and althou gh implemented
in its own DLL it has access to all the Designer’s global variables and main
functions through th e mechanism to b e discussed in section 9.8. Rendering a
network of triangular polygons using OpenGL was discussed in