ExplodeForm – Showing a form with an explosion effect

ExplodeForm – Showing a form with an explosion effect

' Show a form with an explosion effect.' the numSteps parameter is the number of steps to increase the form size from ' 0 to the original size' the stepDuration argument is the number of milliseconds between each step' Example:'   Private Sub Form1_Activated(...) Handles MyBase.Activated'      ExplodeForm(Me)'   End SubSub ExplodeForm(ByVal frm As Form, Optional ByVal numSteps As Integer = 25, _    Optional ByVal stepDuration As Integer = 10)    ' do nothing if the form is minimized or maximized    If frm.WindowState <> FormWindowState.Normal Then Exit Sub    Dim origLeft As Integer = frm.Left    Dim origTop As Integer = frm.Top    Dim origHeight As Integer = frm.Height    Dim origWidth As Integer = frm.Width    Dim stepHeight = origHeight / numSteps    Dim stepWidth = origWidth / numSteps    Dim newHeight, newWidth As Integer    Dim i As Integer    For i = 1 To numSteps        'calc the new height/width        newHeight += stepHeight        newWidth += stepWidth        ' display the form        frm.SetBounds(origLeft, origTop, newWidth, newHeight)        ' pause if so is requested        System.Threading.Thread.CurrentThread.Sleep(stepDuration)    Next    ' ensure that the form is completely visible    frm.SetBounds(origLeft, origTop, origWidth, origHeight)End Sub

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