Display Driver Exercise #1 (cont)
The mga driver supplied in the DDK hooks the BitBlt operation from the GDI.
Read the DDK documentation and determine how to unhook the BitBLT operation
(hint: you will have to modify enable.c ).
Use the Business Graphics WinMark 98 test under
WinBench 98 to measure the resulting performance
with BitBLT being performed by the GDI.
When you run the Graphics WinMark, you will get a
warning about some ‘unnecessary processes’ currently
executing; don’t worry about this. You may also have
to turn off the ‘always on top’ flag on the bottom taskbar
in order for the benchmark to run.