/// <summary>
/// Excludes a Control from the AeroGlass frame.
/// </summary>
/// <param name="control">The control to exclude.</param>
/// <remarks>Many non-WPF rendered controls (i.e., the ExplorerBrowser control) will not
/// render properly on top of an AeroGlass frame. </remarks>
public void ExcludeControlFromAeroGlass(Control control)
{
if (control == null) { throw new ArgumentNullException("control"); }
if (AeroGlassCompositionEnabled)
{
Rectangle clientScreen = this.RectangleToScreen(this.ClientRectangle);
Rectangle controlScreen = control.RectangleToScreen(control.ClientRectangle);
Margins margins = new Margins();
margins.LeftWidth = controlScreen.Left - clientScreen.Left;
margins.RightWidth = clientScreen.Right - controlScreen.Right;
margins.TopHeight = controlScreen.Top - clientScreen.Top;
margins.BottomHeight = clientScreen.Bottom - controlScreen.Bottom;
// Extend the Frame into client area
DesktopWindowManagerNativeMethods.DwmExtendFrameIntoClientArea(Handle, ref margins);
}
}
/// <summary>
/// Excludes a UI element from the AeroGlass frame.
/// </summary>
/// <param name="element">The element to exclude.</param>
/// <remarks>Many non-WPF rendered controls (i.e., the ExplorerBrowser control) will not
/// render properly on top of an AeroGlass frame. </remarks>
public void ExcludeElementFromAeroGlass(FrameworkElement element)
{
if (AeroGlassCompositionEnabled && element != null)
{
// calculate total size of window nonclient area
HwndSource hwndSource = PresentationSource.FromVisual(this) as HwndSource;
NativeRect windowRect;
NativeRect clientRect;
DesktopWindowManagerNativeMethods.GetWindowRect(hwndSource.Handle, out windowRect);
DesktopWindowManagerNativeMethods.GetClientRect(hwndSource.Handle, out clientRect);
Size nonClientSize = new Size(
(double)(windowRect.Right - windowRect.Left) - (double)(clientRect.Right - clientRect.Left),
(double)(windowRect.Bottom - windowRect.Top) - (double)(clientRect.Bottom - clientRect.Top));
// calculate size of element relative to nonclient area
GeneralTransform transform = element.TransformToAncestor(this);
Point topLeftFrame = transform.Transform(new Point(0, 0));
Point bottomRightFrame = transform.Transform(new Point(
element.ActualWidth + nonClientSize.Width,
element.ActualHeight + nonClientSize.Height));
// Create a margin structure
Margins margins = new Margins();
margins.LeftWidth = (int)topLeftFrame.X;
margins.RightWidth = (int)(this.ActualWidth - bottomRightFrame.X);
margins.TopHeight = (int)(topLeftFrame.Y);
margins.BottomHeight = (int)(this.ActualHeight - bottomRightFrame.Y);
// Extend the Frame into client area
DesktopWindowManagerNativeMethods.DwmExtendFrameIntoClientArea(windowHandle, ref margins);
}
}
/// <summary>
/// Resets the AeroGlass exclusion area.
/// </summary>
public void ResetAeroGlass()
{
Margins margins = new Margins(true);
DesktopWindowManagerNativeMethods.DwmExtendFrameIntoClientArea(windowHandle, ref margins);
}
internal static extern int DwmExtendFrameIntoClientArea(
IntPtr hwnd,
ref Margins m);
internal static extern int DwmExtendFrameIntoClientArea(
IntPtr hwnd,
ref Margins m);