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POShake form on screen
 

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    <p>I would like to 'shake' my winforms form to provide user feedback, much like the effect used on a lot of mobile OS's.</p> <p>I can obviously set the location of the window and go back and forth with <code>Form1.Location.X</code> etc. but the effect from this method is terrible. I'd like something a little more fluent - or alternatively is there a way to shake the entire screen? </p> <p>I'll only be targeting Windows 7 using .net 4.5.</p> <p><strong>Update</strong></p> <p>Using both Hans and Vidstige suggestions I've come up with the following, which also works when the window is maximized - I wish I could pick two answers, I've up-voted your answer though Vidstige and hope others will too. Hans' answer hits all the salient points though.</p> <p>Two forms <code>MainForm</code> and <code>ShakeForm</code></p> <h2>MainForm Code</h2> <pre><code> Private Sub shakeScreenFeedback() Dim f As New Shakefrm Dim b As New Bitmap(Me.Width, Me.Height, PixelFormat.Format32bppArgb) Me.DrawToBitmap(b, Me.DisplayRectangle) f.FormBorderStyle = Windows.Forms.FormBorderStyle.None f.Width = Me.Width f.Height = Me.Height f.ShowInTaskbar = False f.BackgroundImage = b f.BackgroundImageLayout = ImageLayout.Center f.Show(Me) f.Location = New Drawing.Point(Me.Location.X, Me.Location.Y) 'I found putting the shake code in the formLoad event didn't work f.shake() f.Close() b.Dispose() End Sub </code></pre> <h2>ShakeForm Code</h2> <pre><code>Public Sub shake() Dim original = Location Dim rnd = New Random(1337) Const shake_amplitude As Integer = 10 For i As Integer = 0 To 9 Location = New Point(original.X + rnd.[Next](-shake_amplitude, shake_amplitude), original.Y + rnd.[Next](-shake_amplitude, shake_amplitude)) System.Threading.Thread.Sleep(20) Next Location = original End Sub </code></pre>
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    1. COwhat do you mean with fluent? A shake is typically not very fluent...
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    2. COas I understand fluent means smooth and animated.
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    3. COyes, and how does a fluent shake look like? A shake to me would be a quite erratic and rapid movement.
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