WaitForInputIdle

C# Signature:

[DllImport("user32.dll")]
static extern uint WaitForInputIdle(IntPtr hProcess, uint dwMilliseconds);

VB Signature:

<DllImport("user32.dll", SetLastError:=True, CharSet:=CharSet.Auto)> _
Private Shared Function WaitForInputIdle( _
  ByVal hProcess As IntPtr, _
  ByVal dwMilliseconds As UInteger) As Integer
End Function