[RESOLVED] Prompt an MFC program for mouse events

[iron59]

Good day. I made an MFC program that detects Mouse events through the use of Mouse Hooks. My problem now is I'm still thinking of a way on how to prompt the MFC program when a global mouse event occurs. I'm having a hard time because the Hook Procedures are written in the DLL code. Can someone please suggest a a good approach for this? Thank you very much in advance


P.S.

If it helps, here's a snippet of my Hook Procedure in my dll

extern "C" __declspec(dllexport) LRESULT CALLBACK MouseHookProc(int nCode, WPARAM wParam, LPARAM lParam) 
{
	// Get event information
	PMSLLHOOKSTRUCT p = (PMSLLHOOKSTRUCT) lParam;

	if(wParam == WM_MOUSEMOVE)
	{
		TRACE("X: %d Y: %d\n", p->pt.x, p->pt.y);
	}
	else if (wParam == WM_LBUTTONDOWN)
	{
		TRACE("Left Click\n");
	}

	return CallNextHookEx(NULL, nCode, wParam, lParam);
}

And this is how it is installed

// Setup Windows hooks
m_HDll = ::LoadLibrary(_T("../../HookDll/Debug/HookDll.dll"));
if (!m_HDll)
{
	TRACE("DLL Not Loaded: %lu\n", GetLastError());
}
HOOKPROC hkprc = (HOOKPROC)GetProcAddress(m_HDll, "_MouseHookProc@12");
if (!hkprc)
{
	TRACE("Procedure not loaded: %lu\n", GetLastError());
}
m_MouseHook = SetWindowsHookEx(WH_MOUSE_LL, hkprc, m_HDll, 0);
if (!m_MouseHook)
{
	TRACE("Hook Process not successful: %lu\n", GetLastError());
}

[Alex F]

For target OS NT or later, you can use WH_MOUSE_LL hook, which can be implemented in the same exe project, without need of additional Dll.

[iron59]

Thank you very much. It's working now