/// <summary>
/// Reevaluates the DockPosition and Bounds
/// and raises the PositionOrSizeChanged event if necessary
/// </summary>
public void Update(IntPtr childHwnd)
{
var oldDockPosition = DockPosition;
var oldBounds = Bounds;
if (childHwnd == IntPtr.Zero)
{
DockPosition = TaskbarUtils.GetTaskbarDockPosition(Handle);
Bounds = WindowUtils.GetWindowBounds(Handle);
// raised by the main taskbar, check if it was moved
if (oldDockPosition != DockPosition || oldBounds != Bounds)
{
RaisePositionOrSizeChanged(IntPtr.Zero);
}
}
else
{
if (ObservedChildBoundChanges.TryGetValue(childHwnd, out Rectangle childRect))
{
// check if the child bounds have really changed
var screenRect = WindowUtils.GetWindowBounds(childHwnd);
if (!screenRect.Equals(childRect))
{
RaisePositionOrSizeChanged(childHwnd);
}
}
}
}
/// <summary>
/// Show the primary taskbar's calendar flyout at the given location with the given alignment
/// </summary>
public static void ShowCalendarFlyOut(Rectangle alignTo, FlyoutAlignment alignment)
{
// get all window handles which have the same class as the
// flyout, so that we know these are not the flyout
var nonFlyoutHandles = WindowUtils.ListWindowsWithClass(CalendarFlyoutClassName);
// invoke the primary taskbar's calendar flyout
if (TaskbarUtils.InvokeCalendarFlyOut())
{
// wait for it to open (max. 2 seconds)
IntPtr flyoutHwnd = IntPtr.Zero;
int start = Environment.TickCount;
while (flyoutHwnd == IntPtr.Zero && (Environment.TickCount - start <= 2000))
{
flyoutHwnd = TaskbarUtils.GetCalendarFlyoutHwnd(nonFlyoutHandles);
}
if (flyoutHwnd != IntPtr.Zero)
{
// and move it to this clock's location
NativeImports.RECT flyoutRect;
if (NativeImports.GetWindowRect(flyoutHwnd, out flyoutRect))
{
int flyoutWidth = flyoutRect.Right - flyoutRect.Left;
int flyoutHeight = flyoutRect.Bottom - flyoutRect.Top;
switch (alignment)
{
case FlyoutAlignment.Below:
// place the calendar flyout below the clock
NativeImports.SetWindowPos(flyoutHwnd, IntPtr.Zero, alignTo.Right - flyoutWidth, alignTo.Bottom, 0, 0, NativeImports.SetWindowPosFlags.SWP_NOSIZE);
break;
case FlyoutAlignment.Above:
// place the calendar flyout above the clock
NativeImports.SetWindowPos(flyoutHwnd, IntPtr.Zero, alignTo.Right - flyoutWidth, alignTo.Top - flyoutHeight, 0, 0, NativeImports.SetWindowPosFlags.SWP_NOSIZE);
break;
case FlyoutAlignment.ToTheRight:
// place the calendar flyout to the right of the clock
NativeImports.SetWindowPos(flyoutHwnd, IntPtr.Zero, alignTo.Right, alignTo.Bottom - flyoutHeight, 0, 0, NativeImports.SetWindowPosFlags.SWP_NOSIZE);
break;
case FlyoutAlignment.ToTheLeft:
// place the calendar flyout to the left of the clock
NativeImports.SetWindowPos(flyoutHwnd, IntPtr.Zero, alignTo.Left - flyoutWidth, alignTo.Bottom - flyoutHeight, 0, 0, NativeImports.SetWindowPosFlags.SWP_NOSIZE);
break;
}
}
}
}
}
