Calling User32.dll functions in drivers

Can I call user32.dll functions in filter drivers?
eg SendMessage()

I have successfully linked the winuser.lib with the filter driver, but
when it executes it produces an error, dll function not found.

Please help.

> Can I call user32.dll functions in filter drivers?

eg SendMessage()

No.
Kernel and user space are separated from one another for stability reasons.

Max