WPF 滑鼠滾輪事件MouseWheel 圖片放大縮小

MouseWheel的事件是寫在 WINDOW內，也可以寫在Image (但沒成功，可能要利用事件傳遞來完成!)

XAML
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xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
Title="Window1" Height="600" Width="600" MouseWheel="Image_MouseWheel" >







Code
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Private Sub Image_MouseWheel(ByVal sender As System.Object, ByVal e As System.Windows.Input.MouseWheelEventArgs)


If e.Delta > 0 Then

imageScale.ScaleX = imageScale.ScaleX * 1.2
imageScale.ScaleY = imageScale.ScaleY * 1.2
Else
imageScale.ScaleX = imageScale.ScaleX * 0.8
imageScale.ScaleY = imageScale.ScaleY * 0.8

End If


End Sub