给你个代码最少的例子
1 准备工作
在窗体上放3个IMAGE,image1是你显示的按钮,image2是你用来放鼠标移动到上面时候的图片的,image3和image1一样
2 代码
Private Sub Form_MouseMove(Button As Integer, Shift As Integer, X As Single, Y As Single)
Image1.Picture = Image3.Picture
End Sub
Private Sub Image1_MouseMove(Button As Integer, Shift As Integer, X As Single, Y As Single)
Image1.Picture = Image2.Picture
End Sub