在插件中为WM_NCHITTEST返回HTTRANSPARENT

Question

我怎样才能获得一个插件，让程序通过窗口进行点击？我听说我必须为WM_NCHITTEST返回HTTRANSPARENT。挂钩是否可以做到这一点？就我所知，这就是我的意思：

LRESULT CALLBACK myHook(int nCode, WPARAM wParam, LPARAM lParam) 
{
    CWPSTRUCT* pwp = (CWPSTRUCT*)lParam;

    if (nCode >= 0)
    {
    if (pwp->message==WM_NCHITTEST)
        MessageBox(NULL, TEXT("NCHITTEST has been receieved."), TEXT("NCHITTEST"), MB_ICONINFORMATION);                
    }

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