protected void PollActiveWindow()
{
while (!exiting)
{
IntPtr currentActiveWindow = Win32API.GetForegroundWindow();
if (currentActiveWindow != IntPtr.Zero)
{
if (lastActiveWindow != currentActiveWindow)
{
lastActiveWindow = currentActiveWindow;
uint threadId = Win32API.GetWindowThreadProcessId(lastActiveWindow, IntPtr.Zero);
FireWindowActivated(lastActiveWindow, threadId);
}
else if (lastActiveWindow != IntPtr.Zero)
{
uint threadId = Win32API.GetWindowThreadProcessId(lastActiveWindow, IntPtr.Zero);
Win32API.GUITHREADINFO threadInfo = new Win32API.GUITHREADINFO();
threadInfo.cbSize = Marshal.SizeOf(threadId);
if (Win32API.GetGUIThreadInfo(threadId, out threadInfo))
{
IntPtr hwndActive = new IntPtr(threadInfo.hwndActive);
if (lastActiveControl != hwndActive)
{
lastActiveControl = hwndActive;
FireWindowControlFocussed(lastActiveWindow, lastActiveControl);
}
}
}
}
Thread.Sleep(POLL_SLEEP_INTERVAL_MS);
}
}
public static IntPtr GetActiveControl(uint threadId)
{
Win32API.GUITHREADINFO threadInfo = new Win32API.GUITHREADINFO();
threadInfo.cbSize = Marshal.SizeOf(threadInfo);
if (Win32API.GetGUIThreadInfo(threadId, out threadInfo))
{
return(new IntPtr(threadInfo.hwndActive));
}
return(IntPtr.Zero);
}
