Flags that show the direction in which the window scrolled and the window
that was scrolled.
CMA_HORIZONTAL
A window was scrolled horizontally.
If the split details view window is scrolled, a logical OR operator (|)
is used to combine the CMA_HORIZONTAL attribute with either the CMA_LEFT
attribute or the CMA_RIGHT attribute to indicate which window was scrolled.
If the unsplit details view window is scrolled, the CMA_HORIZONTAL attribute
is combined with the CMA_LEFT attribute.
CMA_VERTICAL
The container window scrolled
vertically. If the split details view window is scrolled, a logical OR operator
(|) is used to combine the CMA_VERTICAL attribute with the CMA_LEFT attribute
and the CMA_RIGHT attribute. If the unsplit details view window is scrolled,
the CMA_VERTICAL attribute is combined with the CMA_LEFT attribute.