Hide desktop icons and windows to show desktop wallpaper?

How do you hide the desktop icons and the windows open to show the desktop wallpaper in cocoa?开发者_Go百科

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Trying to show a preview??

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If so you could try:

• Showing a full-screen app with the image to simulate a preview.

• Once user selects a wallpaper, use APIs provide to set that image as the wallpaper.

  (You could,minimise your app now)

I hope this is what you wanted to achieve...

GoodLUCK!!