private void moveToFront(WindowInfo windowInfo)
{
windows.Remove(windowInfo);
windows.AddFirst(windowInfo);
}
private void remove(WindowInfo windowInfo)
{
windows.Remove(windowInfo);
windowsCache.Remove(windowInfo.Handle);
}
private void add(WindowInfo windowInfo)
{
windows.AddFirst(windowInfo);
windowsCache.Add(windowInfo.Handle, windowInfo);
}
/// <summary>
/// WinEventDelegate for the creation & destruction
/// </summary>
/// <param name="hWinEventHook"></param>
/// <param name="eventType"></param>
/// <param name="hWnd"></param>
/// <param name="idObject"></param>
/// <param name="idChild"></param>
/// <param name="dwEventThread"></param>
/// <param name="dwmsEventTime"></param>
private void WinEventDelegate(IntPtr hWinEventHook, WinEvent eventType, IntPtr hWnd, EventObjects idObject, int idChild, uint dwEventThread, uint dwmsEventTime)
{
if (hWnd == IntPtr.Zero || idObject != EventObjects.OBJID_WINDOW)
{
if (idObject != EventObjects.OBJID_CARET && idObject != EventObjects.OBJID_CURSOR)
{
LOG.InfoFormat("Unhandled eventType: {0}, hWnd {1}, idObject {2}, idChild {3}, dwEventThread {4}, dwmsEventTime {5}", eventType, hWnd, idObject, idChild, dwEventThread, dwmsEventTime);
}
return;
}
WindowInfo windowInfo = null;
IntPtr hWndParent;
bool isPreviouslyCreated = windowsCache.TryGetValue(hWnd, out windowInfo);
if (windowInfo == null)
{
hWndParent = User32.GetParent(hWnd);
windowInfo = WindowInfo.CreateFor(hWnd, hWndParent);
}
else
{
hWndParent = windowInfo.Parent;
}
if (windowInfo.Classname == "OleMainThreadWndClass")
{
// Not a peeps, this window is not interresting.
return;
}
LOG.InfoFormat("eventType {0}, hWnd {1}, idObject {2}, idChild {3}, dwEventThread {4}, dwmsEventTime {5}", eventType, hWnd, idObject, idChild, dwEventThread, dwmsEventTime);
switch (eventType)
{
case WinEvent.EVENT_OBJECT_NAMECHANGE:
if (windowsCache.TryGetValue(hWnd, out windowInfo))
{
// Force update of Text
windowInfo.Text = null;
LOG.InfoFormat("Rename {0} / {1}", windowInfo.Text, windowInfo.Classname);
}
else
{
// Huh?
LOG.WarnFormat("No record of a window with hWnd {0}", hWnd);
}
break;
case WinEvent.EVENT_OBJECT_CREATE:
if (!isPreviouslyCreated)
{
if (hWndParent != IntPtr.Zero)
{
WindowInfo parent;
if (!windowsCache.TryGetValue(hWndParent, out parent))
{
parent = WindowInfo.CreateFor(hWndParent);
add(parent);
}
parent.Children.Add(windowInfo);
LOG.InfoFormat("Added child {0} / {1} to {2} / {3} / {4}", windowInfo.Text, windowInfo.Classname, parent.Handle, parent.Text, parent.Classname);
}
else
{
add(windowInfo);
LOG.InfoFormat("Added {0} / {1}", windowInfo.Text, windowInfo.Classname);
}
}
else
{
LOG.InfoFormat("'Activated' parent {0} / {1}", windowInfo.Text, windowInfo.Classname);
}
break;
case WinEvent.EVENT_OBJECT_DESTROY:
if (isPreviouslyCreated)
{
LOG.InfoFormat("Removing {0} / {1}", windowInfo.Text, windowInfo.Classname);
remove(windowInfo);
}
else
{
if (hWndParent != IntPtr.Zero)
{
if (windowsCache.TryGetValue(hWnd, out windowInfo))
{
LOG.WarnFormat("Unhandled destroy of Child from {0}", windowInfo.Text);
// Implement child removal
}
else
{
LOG.WarnFormat("No record of a child-window with hWnd {0}", hWnd);
}
}
else
{
LOG.WarnFormat("No record of a top-window with hWnd {0}", hWnd);
}
}
break;
case WinEvent.EVENT_OBJECT_FOCUS:
// Move the top-window with the focus to the foreground
if (isPreviouslyCreated)
{
moveToFront(windowInfo);
LOG.InfoFormat("Focus: {0} / {1}", windowInfo.Text, windowInfo.Classname);
}
break;
case WinEvent.EVENT_OBJECT_LOCATIONCHANGE:
case WinEvent.EVENT_SYSTEM_MOVESIZESTART:
case WinEvent.EVENT_SYSTEM_MOVESIZEEND:
// Move the top-window with the focus to the foreground
if (isPreviouslyCreated)
{
windowInfo.Bounds = System.Drawing.Rectangle.Empty;
LOG.InfoFormat("Move/resize: {2} - {0} / {1}", windowInfo.Text, windowInfo.Classname, windowInfo.Bounds);
}
break;
}
}