以下函数只能让标题栏变成深色模式，但我想要实现IDM那样的完整的Win32窗口的深色模式。

DwmSetWindowAttribute(hWnd, DWMWA_USE_IMMERSIVE_DARK_MODE, &value, sizeof(value));

经过一番搜索，下面的函数可以实现这个效果，放在这里记录一下

typedef BOOL(WINAPI* AllowDarkModeForWindowProc)(HWND, BOOL);
typedef void(WINAPI* RefreshImmersiveColorPolicyStateProc)();
typedef BOOL(WINAPI* AllowDarkModeForAppProc)(BOOL);
typedef DWORD(WINAPI* SetPreferredAppModeProc)(DWORD);

enum PreferredAppMode { Default, AllowDark, ForceDark, ForceLight };

void ApplyDarkModeSettings(HWND hWnd) {
    HMODULE hUxtheme = LoadLibraryEx(L"uxtheme.dll", NULL, LOAD_LIBRARY_SEARCH_SYSTEM32);
    if (!hUxtheme) return;

    DWORD buildNumber = GetWindowsBuildNumber();
    
    // 适配不同系统版本的全局深色模式
    if (buildNumber < 18362) { // Windows 10 1809 及以下
        auto AllowDarkModeForApp = (AllowDarkModeForAppProc)GetProcAddress(hUxtheme, MAKEINTRESOURCEA(135));
        if (AllowDarkModeForApp) AllowDarkModeForApp(TRUE);
    } else { // Windows 10 1903 及以上
        auto SetPreferredAppMode = (SetPreferredAppModeProc)GetProcAddress(hUxtheme, MAKEINTRESOURCEA(135));
        if (SetPreferredAppMode) SetPreferredAppMode(AllowDark);
    }

    // 刷新颜色策略并允许窗口深色模式
    auto RefreshImmersiveColorPolicyState = (RefreshImmersiveColorPolicyStateProc)GetProcAddress(hUxtheme, MAKEINTRESOURCEA(104));
    auto AllowDarkModeForWindow = (AllowDarkModeForWindowProc)GetProcAddress(hUxtheme, MAKEINTRESOURCEA(133));
    
    if (RefreshImmersiveColorPolicyState) RefreshImmersiveColorPolicyState();
    if (AllowDarkModeForWindow) AllowDarkModeForWindow(hWnd, TRUE);

    FreeLibrary(hUxtheme);
}