Windows 7 - cursor position

Asked By suhas

03-Feb-10 06:31 AM

can we  read the cursor position  in the driver itself

03-Feb-10 01:02 PM

nope

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03-Feb-10 05:47 PM

It really depends.
If you are in a display driver, and according to reported capability
and system configuration, you may have a call to one of those
WDDM - DxgkDdiSetPointerPosition
XPDM -  DrvMovePointer / DrvSetPointerShape.
In any other environment, the information is not accessible.

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03-Feb-10 07:55 PM

I dont understand: Why do people need the position of the
mouse on the screen inside a driver??? This is something
that you will need in user mode with user interfaces not
inside a driver. If you want to restrict/set the pointer to
something or somewhere, then you simply write a user
mode app and leave that task to it,...

Regards

K.


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Kerem G??mr??kc??
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04-Feb-10 06:00 AM

How does this work, is not the cursor position a session thing? What cursor
position would I get with that method? I must confess I know nothing about
the relation between the video driver and RDP, but my psychic powers tell me
that there is none.

Thanks,

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Aram H??v??rneanu

04-Feb-10 03:29 PM

XPDM display drivers are Session-Space drivers.
Only the XPDM miniport is a System-Space driver, but,
that is not cursor aware by any standardized means.

For WDDM, only the session bound to the glass terminal
can use the WDDM stack to drive a primary attached to the desktop,
so the problem is somewhat solved, because you can draw
a cursor only to a scanout surface.

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