private bool AppBarMessageAction(NativeMethods.APPBARMSGDATAV3 amd)
{
// only handle ABM_GETTASKBARPOS, send other AppBar messages to default handler
switch ((NativeMethods.ABMsg)amd.dwMessage)
{
case NativeMethods.ABMsg.ABM_GETTASKBARPOS:
IntPtr hShared = NativeMethods.SHLockShared((IntPtr)amd.hSharedMemory, (uint)amd.dwSourceProcessId);
NativeMethods.APPBARDATAV2 abd = (NativeMethods.APPBARDATAV2)Marshal.PtrToStructure(hShared, typeof(NativeMethods.APPBARDATAV2));
if (menubarSizeDelegate != null)
{
NativeMethods.MenuBarSizeData msd = menubarSizeDelegate();
abd.rc = msd.rc;
abd.uEdge = (uint)msd.edge;
}
else
{
CairoLogger.Instance.Info("TrayService: MenuBarSizeDelegate is null");
}
Marshal.StructureToPtr(abd, hShared, false);
NativeMethods.SHUnlockShared(hShared);
CairoLogger.Instance.Debug("TrayService: Responded to ABM_GETTASKBARPOS");
return(true);
}
return(false);
}
public IntPtr WndProc(IntPtr hWnd, int msg, IntPtr wParam, IntPtr lParam)
{
switch ((NativeMethods.WM)msg)
{
case NativeMethods.WM.COPYDATA:
if (lParam == IntPtr.Zero)
{
CairoLogger.Instance.Debug("TrayService: CopyData is null");
break;
}
NativeMethods.COPYDATASTRUCT copyData =
(NativeMethods.COPYDATASTRUCT)Marshal.PtrToStructure(lParam, typeof(NativeMethods.COPYDATASTRUCT));
switch ((int)copyData.dwData)
{
case 0:
// AppBar message
if (Marshal.SizeOf(typeof(NativeMethods.APPBARMSGDATAV3)) == copyData.cbData)
{
NativeMethods.APPBARMSGDATAV3 amd = (NativeMethods.APPBARMSGDATAV3)Marshal.PtrToStructure(copyData.lpData,
typeof(NativeMethods.APPBARMSGDATAV3));
if (Marshal.SizeOf(typeof(NativeMethods.APPBARDATAV2)) != amd.abd.cbSize)
{
CairoLogger.Instance.Debug("TrayService: Size incorrect for APPBARMSGDATAV3");
break;
}
if (AppBarMessageAction(amd))
{
return((IntPtr)1);
}
}
else
{
CairoLogger.Instance.Debug("TrayService: AppBar message received, but with unknown size");
}
break;
case 1:
NativeMethods.SHELLTRAYDATA trayData =
(NativeMethods.SHELLTRAYDATA)Marshal.PtrToStructure(copyData.lpData,
typeof(NativeMethods.SHELLTRAYDATA));
if (trayDelegate != null)
{
if (trayDelegate(trayData.dwMessage, trayData.nid))
{
return((IntPtr)1);
}
CairoLogger.Instance.Debug("TrayService: Ignored notify icon message");
}
else
{
CairoLogger.Instance.Info("TrayService: TrayDelegate is null");
}
break;
case 3:
NativeMethods.WINNOTIFYICONIDENTIFIER iconData =
(NativeMethods.WINNOTIFYICONIDENTIFIER)Marshal.PtrToStructure(copyData.lpData,
typeof(NativeMethods.WINNOTIFYICONIDENTIFIER));
if (iconDataDelegate != null)
{
return(iconDataDelegate(iconData.dwMessage, iconData.hWnd, iconData.uID,
iconData.guidItem));
}
CairoLogger.Instance.Info("TrayService: IconDataDelegate is null");
break;
}
break;
case NativeMethods.WM.WINDOWPOSCHANGED:
NativeMethods.WINDOWPOS wpos = (NativeMethods.WINDOWPOS)Marshal.PtrToStructure(lParam, typeof(NativeMethods.WINDOWPOS));
if ((wpos.flags & NativeMethods.SetWindowPosFlags.SWP_SHOWWINDOW) != 0)
{
NativeMethods.SetWindowLong(HwndTray, NativeMethods.GWL_STYLE,
NativeMethods.GetWindowLong(HwndTray, NativeMethods.GWL_STYLE) &
~(int)NativeMethods.WindowStyles.WS_VISIBLE);
CairoLogger.Instance.Debug("TrayService: Shell_TrayWnd became visible; hiding");
}
break;
}
if (msg == (int)NativeMethods.WM.COPYDATA || msg == (int)NativeMethods.WM.ACTIVATEAPP)
{
IntPtr fwdResult = IntPtr.Zero;
NativeMethods.EnumWindows((enumHwnd, enumLParam) =>
{
if (enumHwnd != HwndTray && enumHwnd != hWnd)
{
StringBuilder className = new StringBuilder(256);
NativeMethods.GetClassName(enumHwnd, className, 256);
if (className.ToString() == "Shell_TrayWnd")
{
fwdResult = NativeMethods.SendMessage(enumHwnd, msg, wParam, lParam);
}
}
return(true);
}, 0);
return(fwdResult);
}
return(NativeMethods.DefWindowProc(hWnd, msg, wParam, lParam));
}