uld be restrained to the diagonal line with slope (<EM>
y </EM>
= <EM>
x</EM>
) passing through the reference point.</DD>
<DT>
VRCS_CONSTRAIN_TO_NEGATIVE_UNITY_SLOPE_AXIS </DT><DD>
This flag signals that the mouse position should be restrained to the diagonal line with slope (<EM>
y</EM>
 = <EM>
-x</EM>
) passing through the reference point.</DD>
<DT>
VRCS_CONSTRAIN_TO_VECTOR </DT><DD>
This flag signals that the mouse position should be constrained to the line passing through the reference and vector points