glfwSetKeyCallback() on VS8

nobody wrote on Thursday, October 25, 2007:

Documentation is excellent and GLFW compiles without problems on Win XP (VS 8).

However:

While other callbacks appear to be working, the function supplied with glfwSetKeyCallback() never gets called.

Dumb Question:

Should glfwReadImage() and/or glfwLoadTexture2D() display something or do I need further GL interaction for that? Just asking because my window remains black after successfully loading TGA images.