Re: Movinf the mouse pointer

[Luca Cappa <luca cappa i-medlab com>]

Hello,

riboaz xs4all nl wrote:

> hi,
>
> i do much the same thing in my application when i am zooming in on
> seismological waveforms, mouse-down drag-right = zoom in, mouse-down
> drag-left = zoom out.
>
> in order to determine whether or not to zoom in or out, on mouse-down i
> save the coordinates of the current mouse position, and then on the drag
> event compare the new mouse position with the original (saved) mouse-down
> position.  if new  > original then zoom in, else zoom out.  once the drag
> event is processed, i reset the original position with the new position
> (thus, allowing the user to change directions without having to 
> either: 1)
> restart the mouse event, or 2) get back to the original position.  how
> this is relevant for you would be app-specific).
>
> if you want to restore the original starting position, simply save the
> mouse position on mouse-down and then restore these saved coordinates on
> mouse-up.
>  
Please, could you show me the code you used to set the position of the 
mouse cursor?

Luca

> hope this helps,
>
> richard boaz
>
>  
>
> > Hello all,
> >
> > I have implemented a way to rotate the view around a point in my 3D
> > application, by using the mouse pointer: in
> > fact when the left mouse button is hold down and the mouse is moved, the
> > view rotates around. When this process
> > is going on, the mouse is hidden (i.e. its shape is an empty image).
> > My problem is that I would like to reset the mouse pointer position
> > after each delta movement has been detected: in this
> > way the mouse pointer is always placed in the original position it was
> > when the mouse button was pressed. I do not know
> > how to do it, any help?
> >
> > TIA
> > Luca
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> >
> >   
>
>
>
>
>