On Friday, 22 April 2016 at 21:13:31 UTC, anonymousuer wrote:
What code is needed to tell D to open a window? Thank you in advance.
You can choose between existing libraries or wrappers for GUI implementation like: DlangUI, Qt, ..., (or my new GUI framework called Rikarin what will be avaiable soon).
If you want just create window for e.g. OpenGL context you can use WinAPI CreateWindow or wrappers like SDL or GLFW
