/// <summary>
/// Selects a portion of a window's client area to display as that window's thumbnail in the taskbar.
/// </summary>
/// <param name="windowHandle">The handle to a window represented in the taskbar. This has to be a top-level window.</param>
/// <param name="clippingRectangle">Rectangle structure that specifies a selection within the window's client area,
/// relative to the upper-left corner of that client area.
/// <para>If this parameter is null, the clipping area will be cleared and the default display of the thumbnail will be used instead.</para></param>
public void SetThumbnailClip(IntPtr windowHandle, Rectangle?clippingRectangle)
{
if (clippingRectangle == null)
{
TaskbarManager.Instance.TaskbarList.SetThumbnailClip(windowHandle, IntPtr.Zero);
return;
}
CoreNativeMethods.RECT rect = new CoreNativeMethods.RECT();
rect.left = clippingRectangle.Value.Left;
rect.top = clippingRectangle.Value.Top;
rect.right = clippingRectangle.Value.Right;
rect.bottom = clippingRectangle.Value.Bottom;
IntPtr rectPtr = Marshal.AllocCoTaskMem(Marshal.SizeOf(rect));
try
{
Marshal.StructureToPtr(rect, rectPtr, true);
TaskbarManager.Instance.TaskbarList.SetThumbnailClip(windowHandle, rectPtr);
}
finally
{
Marshal.FreeCoTaskMem(rectPtr);
}
}
internal static bool GetClientSize(IntPtr hwnd, out System.Drawing.Size size)
{
CoreNativeMethods.RECT rect = new CoreNativeMethods.RECT();
if (!GetClientRect(hwnd, ref rect))
{
size = new System.Drawing.Size(-1, -1);
return(false);
}
size = new System.Drawing.Size(rect.right, rect.bottom);
return(true);
}
internal static System.Drawing.Size GetNonClientArea(IntPtr hwnd)
{
var c = new CoreNativeMethods.POINT(0, 0);
TabbedThumbnailNativeMethods.ClientToScreen(hwnd, ref c);
var r = new CoreNativeMethods.RECT();
TabbedThumbnailNativeMethods.GetWindowRect(hwnd, ref r);
return(new System.Drawing.Size(c.X - r.left, c.Y - r.top));
}
/// <summary>
/// Creates and initializes the native ExplorerBrowser control
/// </summary>
protected override void OnCreateControl()
{
base.OnCreateControl();
HRESULT hr = HRESULT.S_OK;
if (this.DesignMode == false)
{
explorerBrowserControl = new ExplorerBrowserClass();
// hooks up IExplorerPaneVisibility and ICommDlgBrowser event notifications
hr = ExplorerBrowserNativeMethods.IUnknown_SetSite(explorerBrowserControl, this);
// hooks up IExplorerBrowserEvents event notification
hr = explorerBrowserControl.Advise(
Marshal.GetComInterfaceForObject(this, typeof(IExplorerBrowserEvents)),
out eventsCookie);
// sets up ExplorerBrowser view connection point events
viewEvents = new ExplorerBrowserViewEvents(this);
CoreNativeMethods.RECT rect = new CoreNativeMethods.RECT();
rect.top = ClientRectangle.Top;
rect.left = ClientRectangle.Left;
rect.right = ClientRectangle.Right;
rect.bottom = ClientRectangle.Bottom;
explorerBrowserControl.Initialize(this.Handle, ref rect, null);
// Force an initial show frames so that IExplorerPaneVisibility works the first time it is set.
// This also enables the control panel to be browsed to. If it is not set, then navigating to
// the control panel succeeds, but no items are visible in the view.
explorerBrowserControl.SetOptions(EXPLORER_BROWSER_OPTIONS.EBO_SHOWFRAMES);
explorerBrowserControl.SetPropertyBag(propertyBagName);
if (antecreationNavigationTarget != null)
{
BeginInvoke(new MethodInvoker(
delegate
{
Navigate(antecreationNavigationTarget);
antecreationNavigationTarget = null;
}));
}
}
Application.AddMessageFilter(this);
}
/// <summary>
/// Sizes the native control to match the WinForms control wrapper.
/// </summary>
/// <param name="e">Contains information about the size changed event.</param>
protected override void OnSizeChanged(EventArgs e)
{
if (explorerBrowserControl != null)
{
CoreNativeMethods.RECT rect = new CoreNativeMethods.RECT();
rect.top = ClientRectangle.Top;
rect.left = ClientRectangle.Left;
rect.right = ClientRectangle.Right;
rect.bottom = ClientRectangle.Bottom;
IntPtr ptr = IntPtr.Zero;
explorerBrowserControl.SetRect(ref ptr, rect);
}
base.OnSizeChanged(e);
}
/// <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)
{
// calculate total size of window nonclient area
HwndSource hwndSource = PresentationSource.FromVisual(this) as HwndSource;
CoreNativeMethods.RECT windowRect = new CoreNativeMethods.RECT( );
CoreNativeMethods.RECT clientRect = new CoreNativeMethods.RECT( );
DesktopWindowManagerNativeMethods.GetWindowRect(hwndSource.Handle, ref windowRect);
DesktopWindowManagerNativeMethods.GetClientRect(hwndSource.Handle, ref 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.cxLeftWidth = (int)topLeftFrame.X;
margins.cxRightWidth = (int)(this.ActualWidth - bottomRightFrame.X);
margins.cyTopHeight = (int)(topLeftFrame.Y);
margins.cyBottomHeight = (int)(this.ActualHeight - bottomRightFrame.Y);
// Extend the Frame into client area
DesktopWindowManagerNativeMethods.DwmExtendFrameIntoClientArea(windowHandle, ref margins);
}
}
public virtual extern void SetRect([In, Out] ref IntPtr phdwp, CoreNativeMethods.RECT rcBrowser);
public virtual extern void Initialize(IntPtr hwndParent, [In] ref CoreNativeMethods.RECT prc, [In] FOLDERSETTINGS pfs);
internal static extern bool GetWindowRect(IntPtr hwnd, ref CoreNativeMethods.RECT rect);
