private Boolean AppbarNew()
{
if (CallbackMessageID == 0)
{
throw new Exception("CallbackMessageID is 0");
}
if (IsAppbarMode)
{
return(true);
}
m_PrevSize = Size;
m_PrevLocation = Location;
// prepare data structure of message
ShellApi.APPBARDATA msgData = new ShellApi.APPBARDATA();
msgData.cbSize = (UInt32)Marshal.SizeOf(msgData);
msgData.hWnd = Handle;
msgData.uCallbackMessage = CallbackMessageID;
// install new appbar
UInt32 retVal = ShellApi.SHAppBarMessage((UInt32)AppBarMessages.New, ref msgData);
IsAppbarMode = (retVal != 0);
SizeAppBar();
return(IsAppbarMode);
}
private void AppbarGetTaskbarPos(out ShellApi.RECT taskRect)
{
// prepare data structure of message
ShellApi.APPBARDATA msgData = new ShellApi.APPBARDATA();
msgData.cbSize = (UInt32)Marshal.SizeOf(msgData);
// get taskbar position
ShellApi.SHAppBarMessage((UInt32)AppBarMessages.GetTaskBarPos, ref msgData);
taskRect = msgData.rc;
}
private void AppbarSetTaskbarState(AppBarStates state)
{
// prepare data structure of message
ShellApi.APPBARDATA msgData = new ShellApi.APPBARDATA();
msgData.cbSize = (UInt32)Marshal.SizeOf(msgData);
msgData.lParam = (Int32)state;
// set taskbar state
ShellApi.SHAppBarMessage((UInt32)AppBarMessages.SetState, ref msgData);
}
private void AppbarWindowPosChanged()
{
// prepare data structure of message
ShellApi.APPBARDATA msgData = new ShellApi.APPBARDATA();
msgData.cbSize = (UInt32)Marshal.SizeOf(msgData);
msgData.hWnd = Handle;
// send windowposchanged to the system
ShellApi.SHAppBarMessage((UInt32)AppBarMessages.WindowPosChanged, ref msgData);
}
private void AppbarActivate()
{
// prepare data structure of message
ShellApi.APPBARDATA msgData = new ShellApi.APPBARDATA();
msgData.cbSize = (UInt32)Marshal.SizeOf(msgData);
msgData.hWnd = Handle;
// send activate to the system
ShellApi.SHAppBarMessage((UInt32)AppBarMessages.Activate, ref msgData);
}
private AppBarStates AppbarGetTaskbarState()
{
// prepare data structure of message
ShellApi.APPBARDATA msgData = new ShellApi.APPBARDATA();
msgData.cbSize = (UInt32)Marshal.SizeOf(msgData);
// get taskbar state
UInt32 retVal = ShellApi.SHAppBarMessage((UInt32)AppBarMessages.GetState, ref msgData);
return((AppBarStates)retVal);
}
private IntPtr AppbarGetAutoHideBar(AppBarEdges edge)
{
// prepare data structure of message
ShellApi.APPBARDATA msgData = new ShellApi.APPBARDATA();
msgData.cbSize = (UInt32)Marshal.SizeOf(msgData);
msgData.uEdge = (UInt32)edge;
// get auto hide
IntPtr retVal = (IntPtr)ShellApi.SHAppBarMessage((UInt32)AppBarMessages.GetAutoHideBar, ref msgData);
return(retVal);
}
private void AppbarSetPos(ref ShellApi.RECT appRect)
{
// prepare data structure of message
ShellApi.APPBARDATA msgData = new ShellApi.APPBARDATA();
msgData.cbSize = (UInt32)Marshal.SizeOf(msgData);
msgData.hWnd = Handle;
msgData.uEdge = (UInt32)m_Edge;
msgData.rc = appRect;
// set postion for the appbar
ShellApi.SHAppBarMessage((UInt32)AppBarMessages.SetPos, ref msgData);
appRect = msgData.rc;
}
private Boolean AppbarSetAutoHideBar(Boolean hideValue)
{
// prepare data structure of message
ShellApi.APPBARDATA msgData = new ShellApi.APPBARDATA();
msgData.cbSize = (UInt32)Marshal.SizeOf(msgData);
msgData.hWnd = Handle;
msgData.uEdge = (UInt32)m_Edge;
msgData.lParam = (hideValue) ? 1 : 0;
// set auto hide
UInt32 retVal = ShellApi.SHAppBarMessage((UInt32)AppBarMessages.SetAutoHideBar, ref msgData);
return((retVal != 0) ? true : false);
}
private Boolean AppbarRemove()
{
// prepare data structure of message
ShellApi.APPBARDATA msgData = new ShellApi.APPBARDATA();
msgData.cbSize = (UInt32)Marshal.SizeOf(msgData);
msgData.hWnd = Handle;
// remove appbar
UInt32 retVal = ShellApi.SHAppBarMessage((UInt32)AppBarMessages.Remove, ref msgData);
IsAppbarMode = false;
Size = m_PrevSize;
Location = m_PrevLocation;
return((retVal != 0) ? true : false);
}