I was reviewing the Domain System Call Reference on bitsavers <http://bitsavers.org/pdf/apollo/007196-01_Domain_System_Call_Reference_Jan87.pdf> and was browsing the PAD (Display Manager) section. Has anyone here done any GUI programming on Domain/OS? I'd like to understand the programming model better. -- "The Direct3D Graphics Pipeline" -- DirectX 9 version available for download <http://legalizeadulthood.wordpress.com/the-direct3d-graphics-pipeline/> Legalize Adulthood! <http://legalizeadulthood.wordpress.com>