Window Docking

[MyndFyre]

Does anyone know how to dock a window to a desktop?  Pretty much, I want to be able to have my form object attach itself to the left or right and increase its height to match the screen's height when it's within a specified margine (right now I have it at 10px), otherwise go back to its old size.

Right now, I have a Form object called DockedForm, that implements an event handler on moving:

Code Select Expand


private void DockedForm_Move(object sender, System.EventArgs e)
{
if (m_storedSize == Size.Empty)
{
m_storedSize = Size;
m_docked = false;
}

if (Screen.AllScreens.Length == 1)
{
if ((Left <= m_mgn) &&
((this.m_pos & WindowDockPositions.Left) != 0))
{
Left = 0;

if (!m_docked)
{
if (m_storedSize.Height != Screen.PrimaryScreen.Bounds.Height)
{
if (Size.Height != Screen.PrimaryScreen.Bounds.Height)
{
m_storedSize = Size;
}
}
else
{
m_storedSize = Size;
}
m_docked = true;
}
Invoke(new SetSizeCallback(setSize),
new object[] { new Size(Width, Screen.PrimaryScreen.Bounds.Height) });

Top = 0;
}
else if ((Right >= (Screen.PrimaryScreen.Bounds.Width - m_mgn)) &&
((m_pos & WindowDockPositions.Right) != 0))
{
Left = (Screen.PrimaryScreen.Bounds.Width - Width);
if (!m_docked)
{
m_storedSize = Size;
m_docked = true;
}
Top = 0;
Invoke(new SetSizeCallback(setSize),
new object[] { new Size(Width, Screen.PrimaryScreen.Bounds.Height) });

}
else
{
if (m_docked)
{
#if DEBUG
T.WriteLine("Undocking", "Status");
#endif
Invoke(new SetSizeCallback(setSize),
new object[] { m_storedSize });
this.Width = m_storedSize.Width;
this.Height = m_storedSize.Height;
m_docked = false;
Invalidate();
}
}
}
}


Two problems with this:

1.) It flickers when docking to the side.  By "flickers" I mean it looks like it can't decide whether to keep its old size or new.
2.) Once it's been resized, dragging the window away from the side does nothing.  I see through a trace that the old size is actually set to the window's size.  However, the window's actual size does not shrink.

Any thoughts?

[dxoigmn]

I'm pretty sure there is an API for this, at least it seems like it is something that should be handled by the window manager. A quick search on google reveals http://msdn.microsoft.com/library/default.asp?url=/library/en-us/shellcc/platform/shell/programmersguide/shell_int/shell_int_programming/appbars.asp