AHK: при закрытии чужого окна минимизировать его

#include <Windows.h>

extern "C" __declspec(dllexport) LRESULT CALLBACK CBTProc(int nCode, WPARAM wParam, LPARAM lParam)
{
    if (nCode == HCBT_SYSCOMMAND && wParam == SC_CLOSE)
    {
        HWND hWnd = GetForegroundWindow();
        char className[256];
        GetClassNameA(hWnd, className, 256);

        if (strcmp(className, "Notepad") == 0)
        {
            bool hasOtherWindows = false;
            HWND hWndOther = FindWindowA("Notepad", NULL);
            while (hWndOther != NULL)
            {
                if (hWndOther != hWnd)
                {
                    hasOtherWindows = true;
                    break;
                }
                hWndOther = FindWindowExA(NULL, hWndOther, "Notepad", NULL);
            }

            if (!hasOtherWindows)
            {
                ShowWindow(hWnd, SW_MINIMIZE);
                return 1;
            }
        }
    }

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

#include <Windows.h>

extern "C" __declspec(dllexport) LRESULT CALLBACK CBTProc(int nCode, WPARAM wParam, LPARAM lParam)
{
    if (nCode == HCBT_DESTROYWND)
    {
        HWND hWnd = (HWND)wParam;
        char className[256];
        GetClassNameA(hWnd, className, 256);
        
        if (strcmp(className, "Notepad") == 0)
        {
            bool hasOtherWindows = false;
            HWND hWndOther = FindWindowA("Notepad", NULL);
            while (hWndOther != NULL)
            {
                if (hWndOther != hWnd)
                {
                    hasOtherWindows = true;
                    break;
                }
                hWndOther = FindWindowExA(NULL, hWndOther, "Notepad", NULL);
            }

            if (!hasOtherWindows)
            {
                ShowWindow(hWnd, SW_MINIMIZE);
                return 1;
            }
        }
    }

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

#include <Windows.h>

extern "C" __declspec(dllexport) LRESULT CALLBACK CBTProc(
	_In_ int    nCode,
	_In_ WPARAM wParam,
	_In_ LPARAM lParam
)
{
	if (nCode < 0) return CallNextHookEx(nullptr, nCode, wParam, lParam);

	switch(nCode)
	{
		case HCBT_DESTROYWND:
		case HCBT_SYSCOMMAND:
			return 1; // Prevent
	}
	return 0;
}

C:\TDM-GCC-64\bin\gcc -c source.cpp
C:\TDM-GCC-64\bin\gcc -shared -o mydll.dll source.o