the swing painting meaning
For more background, see: the Rococo paintings of Hyacinthe Rigaud (1659-1743), painter to Louis XIV, and those of Elisabeth Vigee-Lebrun (1755-1842), painter to Queen Marie-Antoinette, as well as works by Jean-Baptiste Greuze (1725-1805). See also: French Decorative Art (c.1640-1792).
Interpretation of Other 18th Century Paintings
The original owner remains unclear. A firm provenance begins only with the tax farmer Marie-François Ménage de Pressigny, who was guillotined in 1794,  after which it was seized by the revolutionary government. It was possibly later owned by the marquis des Razins de Saint-Marc, and certainly by the duc de Morny. After his death in 1865, it was bought at auction in Paris by Lord Hertford, the main founder of the Wallace Collection. 
There are two notable copies, neither by Fragonard.
Figure 2. Detail of The Swing
They are surrounded by a lush, over grown garden. A sculptured figure to the left puts his fingers to his mouth, as though saying “hush,” while another sculpture in the background has two cupid figures cuddled together. The colors are pastel—pale pinks and greens, and although we have a sense of movement and a prominent diagonal line—the painting lacks all of the seriousness of a baroque painting.
And now look at Cupid’s pose. The god of desire, erotic love, attraction and affection watches on with an all-knowing smile – he knows what’s really going on, and he implores your silence. And so, this otherwise innocent little childhood game is suddenly filled with playful innuendo and the audience becomes part of the clandestine affair.
Click on the detail to see the full image.
The analysis of Jean Honoré Fragonard -The Swing
2) Marina’s Gallery. “Marina’s Gallery: Jean Honore Fragonard: The Swing. The Best Painting of Rococo. Analysis.” Accessed November 13, 2013. http://artmarinagallery.blogspot.com/2013/03/jean-honore-fragonard-swing-best.html.