/// <summary>
/// <para>
/// Requests a size and screen position for an appbar. When the request is made, the message proposes a
/// screen edge and a bounding rectangle for the appbar.
/// </para>
/// <para>
/// The system adjusts the bounding rectangle so
/// that the appbar does not interfere with the Windows taskbar or any other appbars.
/// </para>
/// </summary>
public void QueryPosition(ref Position position, DockPosition dock)
{
//TODO:
//ABM_QUERYPOS seems to do nothing on Windows 10. It gives back the exact
//same dimensions, not adjusting for the start bar
//When the dock is docked to the left for example, it doesn't take the
//entire screen length because the start bar is there. I used ABM_QUERYPOS
//to tell me how much space Windows actually assigned to to the dock
//Since ABM_QUERYPOS doesn't work properly on Windows 10, I've decided
//to only allow the screen to be reserved when docked to top of the screen,
//with the assumption that the start bar is always on the botton of the screen
//The code is being left "as is" in case I figure out the solution to it
APPBARDATA msgData = new APPBARDATA();
msgData.cbSize = Marshal.SizeOf(msgData);
msgData.hWnd = _handle;
msgData.uEdge = (uint)dock.ToNative();
position.ToNative(ref msgData.rc);
Win32AppBar.SHAppBarMessage(ABM.ABM_QUERYPOS, ref msgData);
position = Position.FromNative(ref msgData.rc);
}
/// <summary>
/// Unregisters an appbar.
/// </summary>
public void Unregister()
{
APPBARDATA msgData = new APPBARDATA();
msgData.cbSize = Marshal.SizeOf(msgData);
msgData.hWnd = _handle;
Win32AppBar.SHAppBarMessage(ABM.ABM_REMOVE, ref msgData);
}
/// <summary>
/// Notifies the system when an appbar's position has changed.
/// </summary>
void OnWindowPositionChanged()
{
APPBARDATA msgData = new APPBARDATA();
msgData.cbSize = Marshal.SizeOf(msgData);
msgData.hWnd = _handle;
Win32AppBar.SHAppBarMessage(ABM.ABM_WINDOWPOSCHANGED, ref msgData);
}
/// <summary>
/// Notifies the system that an appbar has been activated.
/// </summary>
void OnActivate()
{
APPBARDATA msgData = new APPBARDATA();
msgData.cbSize = Marshal.SizeOf(msgData);
msgData.hWnd = _handle;
Win32AppBar.SHAppBarMessage(ABM.ABM_ACTIVATE, ref msgData);
}
public Position GetTaskbarPosition()
{
APPBARDATA msgData = new APPBARDATA();
msgData.cbSize = Marshal.SizeOf(msgData);
Win32AppBar.SHAppBarMessage(ABM.ABM_GETTASKBARPOS, ref msgData);
return(Position.FromNative(ref msgData.rc));
}
/// <summary>
/// Retrieves the handle to the appbar associated to the edge of the screen.
/// </summary>
/// <returns>
/// Returns the handle to the autohide appbar. The return value is 0 if an error occurs or
/// if no autohide appbar is associated with the given edge.
/// </returns>
public IntPtr GetAutoHide(DockPosition dock)
{
APPBARDATA msgData = new APPBARDATA();
msgData.cbSize = Marshal.SizeOf(msgData);
msgData.hWnd = _handle;
msgData.uEdge = (uint)dock.ToNative();
return(Win32AppBar.SHAppBarMessage(ABM.ABM_GETAUTOHIDEBAR, ref msgData));
}
/// <summary>
/// Registers a new appbar.
/// </summary>
/// <returns>Returns true if successful, otherwise false</returns>
public bool Register()
{
APPBARDATA msgData = new APPBARDATA();
msgData.cbSize = Marshal.SizeOf(msgData);
msgData.hWnd = _handle;
msgData.uCallbackMessage = _callback;
return(Win32AppBar.SHAppBarMessage(ABM.ABM_NEW, ref msgData).ToInt32() == Win32.TRUE);
}
/// <summary>
/// Registers or unregisters an autohide appbar for an edge of the screen.
/// </summary>
/// <returns>
/// Returns true if successful, or false if an error occurs or
/// if an autohide appbar is already registered for the given edge.
/// </returns>
public bool SetAutoHide(DockPosition dock, bool autohide)
{
APPBARDATA msgData = new APPBARDATA();
msgData.cbSize = Marshal.SizeOf(msgData);
msgData.hWnd = _handle;
msgData.lParam = autohide ? Win32.TRUE : Win32.FALSE;
msgData.uEdge = (uint)dock.ToNative();
return(Win32AppBar.SHAppBarMessage(ABM.ABM_SETAUTOHIDEBAR, ref msgData).ToInt32() == Win32.TRUE);
}
/// <summary>
/// <para>
/// Sets the size and screen position of an appbar. The message specifies a
/// screen edge and the bounding rectangle for the appbar.
/// </para>
/// <para>
/// The system may adjust the bounding rectangle so that the appbar does not
/// interfere with the Windows taskbar or any other appbars.
/// </para>
/// </summary>
public void SetPosition(ref Position position, DockPosition dock)
{
APPBARDATA msgData = new APPBARDATA();
msgData.cbSize = Marshal.SizeOf(msgData);
msgData.hWnd = _handle;
msgData.uEdge = (uint)dock.ToNative();
position.ToNative(ref msgData.rc);
if (dock.Selected == DockEdge.Top)
{
msgData.rc.bottom = msgData.rc.bottom + 8;
}
Win32AppBar.SHAppBarMessage(ABM.ABM_SETPOS, ref msgData);
position = Position.FromNative(ref msgData.rc);
}