/// <summary>
/// Updates the display (position and appearance) of the window.
/// </summary>
/// <param name="activatewindow">True if the window should be activated, false if not.</param>
public void UpdateWindowDisplay(bool activatewindow)
{
if (this.IsLoaded)
{
// set handlers if necessary
this.SetHandlers();
// get the handle of the window
HwndSource windowhandlesource = PresentationSource.FromVisual(this) as HwndSource;
bool glassenabled = Compatibility.IsDWMEnabled;
//// update location
Rect windowbounds = (glassenabled ? WindowPositioning.GetWindowSize(windowhandlesource.Handle) : WindowPositioning.GetWindowClientAreaSize(windowhandlesource.Handle));
// work out the current screen's DPI
Matrix screenmatrix = windowhandlesource.CompositionTarget.TransformToDevice;
double dpiX = screenmatrix.M11; // 1.0 = 96 dpi
double dpiY = screenmatrix.M22; // 1.25 = 120 dpi, etc.
Point position = WindowPositioning.GetWindowPosition(this.NotifyIcon, windowbounds.Width, windowbounds.Height, dpiX);
// translate wpf points to screen coordinates
Point screenposition = new Point(position.X / dpiX, position.Y / dpiY);
this.Left = screenposition.X;
this.Top = screenposition.Y;
// update borders
if (glassenabled)
this.Style = (Style)FindResource("AeroBorderStyle");
else
this.SetNonGlassBorder(this.IsActive);
// fix aero border if necessary
if (glassenabled)
{
// set the root border element's margin to 1 pixel
WindowBorder.Margin = new Thickness(1 / dpiX);
this.BorderThickness = new Thickness(0);
// set the background of the window to transparent (otherwise the inner border colour won't be visible)
windowhandlesource.CompositionTarget.BackgroundColor = Colors.Transparent;
// get dpi-dependent aero border width
int xmargin = Convert.ToInt32(1); // 1 unit wide
int ymargin = Convert.ToInt32(1); // 1 unit tall
NativeMethods.MARGINS margins = new NativeMethods.MARGINS() { cxLeftWidth = xmargin, cxRightWidth = xmargin, cyBottomHeight = ymargin, cyTopHeight = ymargin };
NativeMethods.DwmExtendFrameIntoClientArea(windowhandlesource.Handle, ref margins);
}
else
{
WindowBorder.Margin = new Thickness(0); // reset the margin if the DWM is disabled
this.BorderThickness = new Thickness(1 / dpiX); // set the window's border thickness to 1 pixel
}
if (activatewindow)
{
this.Show();
this.Activate();
}
}
}
