/// <summary>
/// Creates and initializes the native ExplorerBrowser control
/// </summary>
protected override void OnCreateControl()
{
base.OnCreateControl();
if (this.DesignMode == false)
{
explorerBrowserControl = new ExplorerBrowserClass();
// hooks up IExplorerPaneVisibility and ICommDlgBrowser event notifications
ExplorerBrowserNativeMethods.IUnknown_SetSite(explorerBrowserControl, this);
// hooks up IExplorerBrowserEvents event notification
explorerBrowserControl.Advise(
Marshal.GetComInterfaceForObject(this, typeof(IExplorerBrowserEvents)),
out eventsCookie);
// sets up ExplorerBrowser view connection point events
viewEvents = new ExplorerBrowserViewEvents(this);
NativeRect rect = new NativeRect();
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(ExplorerBrowserOptions.ShowFrames);
// ExplorerBrowserOptions.NoBorder does not work, so we do it manually...
RemoveWindowBorder();
explorerBrowserControl.SetPropertyBag(propertyBagName);
if (antecreationNavigationTarget != null)
{
BeginInvoke(new MethodInvoker(
delegate
{
Navigate(antecreationNavigationTarget);
antecreationNavigationTarget = null;
}));
}
}
Application.AddMessageFilter(this);
}
/// <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>
/// Cleans up the explorer browser events+object when the window is being taken down.
/// </summary>
/// <param name="e">An EventArgs that contains event data.</param>
protected override void OnHandleDestroyed(EventArgs e)
{
if (explorerBrowserControl != null)
{
// unhook events
viewEvents.DisconnectFromView();
explorerBrowserControl.Unadvise(eventsCookie);
ExplorerBrowserNativeMethods.IUnknown_SetSite(explorerBrowserControl, null);
// destroy the explorer browser control
explorerBrowserControl.Destroy();
// release com reference to it
Marshal.ReleaseComObject(explorerBrowserControl);
explorerBrowserControl = null;
}
base.OnHandleDestroyed(e);
}
