如何将类实例传递给LowLevelMouseProc

我正在实现逻辑来处理全局鼠标点击，但我停留在需要从LowLevelMouseProc获取数据的时刻。目前，我在创建MyClass实例时设置全局变量，并且我能够从LowLevelMouseProc访问它，但我认为这不是正确的方法。

设置钩：

g_myClass = this;
SetWindowsHookEx(WH_MOUSE_LL, MyClass::MouseHookProc, LoadLibraryA("user32.dll"), 0);

LowLevelMouseProc：

LRESULT CALLBACK MyClass::MouseHookProc(int nCode, WPARAM wParam, LPARAM lParam) {
    MOUSEHOOKSTRUCT * pMouseStruct = (MOUSEHOOKSTRUCT *)lParam;
    g_myClass.onClick(wParam, pMouseStruct->pt.x, pMouseStruct->pt.y); //isn't good
}