When a standard WPF button is clicked, it gets highlighted in blue (probably using the blue color from whatever Windows theme is set), and it stays highlighted until you interac
I found 2 steps solution. The solution is little funny but working . My referance posts are;
How to remove global FocusVisualStyle to all the Controls?
and C# WPF application .NET 4.5 Set Mouse Position
One DLL must be imported , because WPF is not directly supporting mouse cursor move.
[DllImport("User32.dll")]
private static extern bool SetCursorPos(int X, int Y);
SetCursorPos(0, 0);
ButtonName.FocusVisualStyle = null;
It works for me .