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Sourcecode: qt4-x11 version File versions

qreal QLineF::dx (  )  const [inline]

Returns the horizontal component of the line's vector.

See also:
dy(), pointAt()

Definition at line 326 of file qline.h.

References QPointF::x().

Referenced by angle(), intersect(), normalVector(), Arrow::paint(), setAngle(), setLength(), and Mouse::timerEvent().

    return pt2.x() - pt1.x();

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