button.mouseHover change button background image slow
I have written some code to change a button's background image on mouse-hover, however when the image is changes it seems that it is a bit slow to complete.
That is, the开发者_如何学编程 process of setting the new picture as its background image is slow. By slow I mean a few milliseconds, but still enough to be seen!
Is there anything I can do about this, to speed up this process?
let use mouse move (the mouse overed control)
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