private void RegisterBar()
{
Native.APPBARDATA abd = new Native.APPBARDATA();
abd.cbSize = (uint)Marshal.SizeOf(abd);
abd.hWnd = this.Handle;
if (!fBarRegistered)
{
uCallBack = (uint)Native.RegisterWindowMessage("AppBarMessage");
abd.uCallbackMessage = uCallBack;
uint ret = Native.SHAppBarMessage(Native.ABMsg.New, ref abd);
fBarRegistered = true;
ABSetPos();
}
else
{
Native.SHAppBarMessage(Native.ABMsg.Remove, ref abd);
fBarRegistered = false;
}
}
/// <summary>
/// Change size and alert all windows that the working area has changed (if signal=true)
/// </summary>
private void ABSetPos(bool signal)
{
Native.APPBARDATA abd = new Native.APPBARDATA();
abd.cbSize = (uint)Marshal.SizeOf(abd);
abd.hWnd = this.Handle;
abd.uEdge = TaskbarLocation;
int height = TaskbarPropertiesManager.Instance.Properties.HeightMultiplier * BaseSize;
int width = TaskbarPropertiesManager.Instance.Properties.Width;
if (abd.uEdge == (int)Native.ABEdge.Left || abd.uEdge == Native.ABEdge.Right)
{
if (IsHidden)
{
width = 2;
}
abd.rc.top = CurrentScreen.Bounds.Top;
abd.rc.bottom = CurrentScreen.Bounds.Bottom;
if (abd.uEdge == (int)Native.ABEdge.Left)
{
abd.rc.left = CurrentScreen.Bounds.Left;
abd.rc.right = abd.rc.left + width;
}
else
{
abd.rc.right = CurrentScreen.Bounds.Right;
abd.rc.left = abd.rc.right - width;
}
}
else
{
if (IsHidden)
{
height = 2;
}
abd.rc.left = CurrentScreen.Bounds.Left;
abd.rc.right = CurrentScreen.Bounds.Right;
if (abd.uEdge == Native.ABEdge.Top)
{
abd.rc.top = CurrentScreen.Bounds.Top;
abd.rc.bottom = abd.rc.top + height;
}
else
{
abd.rc.bottom = CurrentScreen.Bounds.Bottom;
abd.rc.top = abd.rc.bottom - height;
}
}
// Query the system for an approved size and position.
Native.SHAppBarMessage(Native.ABMsg.QueryPos, ref abd);
// Adjust the rectangle, depending on the edge to which the
// appbar is anchored.
switch (abd.uEdge)
{
case Native.ABEdge.Left:
abd.rc.right = abd.rc.left + width;
break;
case Native.ABEdge.Right:
abd.rc.left = abd.rc.right - width;
break;
case Native.ABEdge.Top:
abd.rc.bottom = abd.rc.top + height;
break;
case Native.ABEdge.Bottom:
abd.rc.top = abd.rc.bottom - height;
break;
}
if (signal)
{
// Pass the final bounding rectangle to the system.
Native.SHAppBarMessage(Native.ABMsg.SetPos, ref abd);
}
// Move and size the appbar so that it conforms to the
// bounding rectangle passed to the system.
Native.MoveWindow(abd.hWnd, abd.rc.left, abd.rc.top,
abd.rc.right - abd.rc.left, abd.rc.bottom - abd.rc.top, true);
}
