ID Number: Q10834
2.00 3.00
WINDOWS
Summary:
The following information concerns GDI's simulation routines for
device drivers:
GDI discards its simulation routines when more intelligent drivers
provide the required information. GDI is demand-loadable and
discardable. When a smart driver registers its capabilities with GDI,
GDI dumps the simulation routines that it uses for less intelligent
display drivers. For example, when writing a driver that can handle
all the OUTPUT functions, GDI will avoid loading all the simulation
routines.
In addition, GDI's simulation routines are optimized. However, it is
usually the case that device drivers can complete output functions a
lot faster because no GDI object or memory must be allocated during
the operations, and device drivers can deal directly with the hardware
device.