Interposed graphics device driver module processing function requests within module in standard mode, and passing function requests to specialized mode device driver in specialized mode

摘要: A module is interposed between the operating system and/or applications of a data processing and device driver for graphics adapter within system. The may selectively intercept all function requests or simply pass such to supporting specialized (e.g., non-VGA) modes. Standard VGA) mode(s) support accessible module. When mode selected, inactive passes driver. standard active intercepts requests, request with available support. Change from vice versa results in changing versa. Requests set are similarly passed processed by depending on whether requests. Initialization termination both preferably implemented accordance GRADD architecture model, as variant filter.