I'm trying to write a code that enables all eight buttons of
Logitech MX900 mouse, like GamePad Companion can. I want to
assign the buttons to perform key strokes on keyboard.
Using HID class device interface in the I/O kit, I have suceeded in
getting mouse input event from a queue. But I have no idea how to
generate a key code and notice OS(kernel) that the key code is entered
without any real key stroke, with just mouse clicks.
Could someone give advice to me ?

P.S. Sorry poor English.

try CGPostKeyboardEvent in /System/Library/Frameworks/ApplicationServices.framework/Frameworks/CoreGraphics.framework/Headers/CGRemoteOperation.h (#include <ApplicationServices/ApplicationServices.h>)

Hello, OneSadCookie, thank you very much for your replay.
I tried it as you wrote, but I found I can't use it because my OS
version is 10.3.9(Panther). Thanks anyway.

That function is available in 10.2.8, at least. It's definitely supported on 10.3.9.

Now I can see it is truely available in Panther.
I mistook it for something else in reading Quartz Event Services Reference
on Apple's Web. Thanks. I will try it.