public virtual void UpdateBorderStyle(FormBorderStyle border_style)
{
if (form.IsHandleCreated)
{
XplatUI.SetBorderStyle(form.Handle, border_style);
}
if (ShouldRemoveWindowManager(border_style))
{
form.RemoveWindowManager();
return;
}
ThemeEngine.Current.ManagedWindowSetButtonLocations(this);
}