/// <summary>
/// Creates a message only window
/// </summary>
/// <param name="createThread">If true, the window will run on a dedicated thread</param>
/// <param name="mouseCallback">Callback to receive mouse messages from the low level mouse hook (WH_MOUSE_LL). set to null to disable mouse hook</param>
/// <param name="kbCallback">Callback to receive keyboard messages from the low level keyboard hook (WH_KEYBOARD_LL). set to null to disable keyboard hook</param>
/// <param name="monitorDesktops">If true, the DesktopSwitched event will fire whenever the window receives EVENT_SYSTEM_DESKTOPSWITCH from the wineventhook</param>
/// <param name="monitorClipboard">If true, ClipboardContentChanged will be fired when clipboard change message is received by the ClipboardFormatListener</param>
public void CreateWindow(bool createThread, LLHookCallback mouseCallback, LLHookCallback kbCallback, bool monitorDesktops, bool monitorClipboard)
{
if (procThread != null)
{
ISLogger.Write("Warning: Can't create message window: thread already exists");
return;
}
windowCreatedEvent = new ManualResetEventSlim(false);
exitThread = false;
if (createThread)
{
procThread = new Thread(() => WndThread(mouseCallback, kbCallback, monitorDesktops, monitorClipboard));
procThread.SetApartmentState(ApartmentState.STA);
procThread.IsBackground = false;
procThread.Name = "WindowOnlyMessageThread";
procThread.Start();
}
else
{
WndThread(mouseCallback, kbCallback, monitorDesktops, monitorClipboard);
}
//We want to wait until the window has actually been created before leaving this method to ensure calls are not made before window
//is created properly. 2000ms timeout
windowCreatedEvent.Wait(2000);
}
private void WndThread(LLHookCallback mouseCallback, LLHookCallback kbCallback, bool monitorDesktops, bool monitorClipboard)
{
procThreadId = GetCurrentThreadId();
WindowHandle = CreateMessageOnlyWindow();
windowCreatedEvent.Set();
if (mouseCallback != null)
{
MouseProcID = SetMouseHook(mouseCallback);
}
if (kbCallback != null)
{
KeyboardProcID = SetKeyboardHook(kbCallback);
}
if (monitorDesktops)
{
StartMonitoringDesktopSwitches();
}
if (monitorClipboard)
{
StartMonitoringClipboard();
}
if (WindowHandle == IntPtr.Zero)
{
ISLogger.Write($"Failed to create window: Win32 error {Marshal.GetLastWin32Error().ToString("X")}");
return;
}
while (!exitThread)
{
if (GetMessage(out MSG message, WindowHandle, 0, 0) != 0)
{
DispatchMessage(ref message);
}
static extern IntPtr SetWindowsHookEx(int idHook,
LLHookCallback lpfn, IntPtr hMod, uint dwThreadId);
