public void SubmitThumbnailButtons(bool add)
{
int hr = -1;
if (MainThread.MainWindow.IsDisposed ||
MainThread.MainWindow.Disposing)
{
return;
}
if (_taskbarList != null && _buttons.Count > 0)
{
if (add || !_addedOnce)
{
hr = _taskbarList.ThumbBarAddButtons(MainThread.MainWindow.Handle,
(uint)Math.Min(_buttons.Count, 7), _buttons.ToArray());
_addedOnce = true;
}
else
{
hr = _taskbarList.ThumbBarUpdateButtons(MainThread.MainWindow.Handle,
(uint)Math.Min(_buttons.Count, 7), _buttons.ToArray());
}
}
_buttons.Clear();
}
internal static void UpdateThumbnailButtons(IntPtr hwnd, params ThumbButton[] buttons)
{
if (IsInitialized)
{
HResult res = taskbar.ThumbBarUpdateButtons(hwnd, (uint)buttons.Length, buttons);
if (res != HResult.Ok)
{
throw new COMException("Cannot update thumbnail button(s): " + res);
}
}
}
/// <summary>
/// Shows, enables, disables, or hides buttons in a thumbnail toolbar as required by the window's current state. A thumbnail toolbar is a toolbar
/// embedded in a thumbnail image of a window in a taskbar button flyout.
/// </summary>
/// <param name="parent">The window whose thumbnail representation contains the toolbar.</param>
/// <param name="buttons">
/// An array of THUMBBUTTON structures. Each THUMBBUTTON defines an individual button. If the button already exists (the iId value is already defined),
/// then that existing button is updated with the information provided in the structure.
/// </param>
public static void ThumbBarUpdateButtons(IWin32Window parent, THUMBBUTTON[] buttons)
{
Validate7OrLater();
if (parent == null)
{
throw new ArgumentNullException(nameof(parent));
}
if (buttons == null)
{
throw new ArgumentNullException(nameof(buttons));
}
taskbar4?.ThumbBarUpdateButtons(parent.Handle, (uint)buttons.Length, buttons);
}