private void Window4_MouseDown(object sender, MouseClickPositionEventArgs e)
{
if (e.Button == MouseButton.Left)
{
this._DoDraw = true;
this._StartPoint = e.Point;
}
}
private void Window4_MouseUp(object sender, MouseClickPositionEventArgs e)
{
if (e.Button == MouseButton.Left)
{
this._EndPoint = e.Point;
this._DoDraw = false;
}
}
