How do I use QEvent?

Hi,

I need to implement a display very similar to google earth.

I need to display a slice cut from a large 3D volume, when user moves the slice (say x slice) within the volume, I will display the data coarsely (re-sample coarsely) so it gives the user a "quick" feeling.

However, when user stops moving the slice, I will need to display the slice in original sample so user will see a good quality of display.

How do I schedule an event or a thread to handle this? Or how do I know user have stopped moving the slice?

I am using Qt 4.7.3.

Many thanks!

Quote:

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Or how do I know user have stopped moving the slice?

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How did you implement the slice movement in the first place?
What IS the slice?
Are you using an QGLWidget or GrphicsViewer or something else?

Creating a custom event is trivial, but you need to know when and from where to post it...