Q:

Create QT plugin with FireBreath on Windows

First of all,sorry for my english.
I wrote a FireBreath plugin with QT and the plugin can show normally.
But when I click a button in the plugin window,nothing happened.And all widgets like this.
But that button changed when I resize the browser.
Am i forgot some event-handling or window-updating operations in QT? 
Thanks for any advice!
The QApplication created in onPluginReady()function.
void MediaPlayerPlugin::onPluginReady()
{
    static int argc=0;
    static char **argv={ 0 };
    new QApplication(argc, argv);
}

And the QWidget is a child of the plugin window(note:the m_player is a QWidget subclass).
bool MediaPlayerPlugin::onWindowAttached(FB::AttachedEvent *evt, FB::PluginWindow *pluginWindow)
{
    FB::PluginWindowWin* wnd = reinterpret_cast<FB::PluginWindowWin*>(pluginWindow);
    HWND hwnd = wnd->getHWND();

    m_player = new MediaPlayer();

    HWND childHwnd = (HWND)m_player->winId();

    LONG oldLong = GetWindowLong(hwnd, GWL_STYLE);

    ::SetWindowLong(hwnd, GWL_STYLE, oldLong | WS_CLIPCHILDREN | WS_CLIPSIBLINGS);
    ::SetWindowLong(childHwnd, GWL_STYLE, WS_CHILD | WS_CLIPCHILDREN | WS_CLIPSIBLINGS);
    ::SetParent(childHwnd, hwnd);

    FB::Rect pos = wnd->getWindowPosition();
    m_player->setGeometry(pos.left,pos.top,pos.right-pos.left,pos.bottom-pos.top);
    m_player->show();
    return true;
}

A:

My guess would be that QApplication is going to essentially take over the process it is running in, which is a problem when you are running as a plugin.  You don't own the process -- you don't get to decide any of the interesting details.
Short answer is that if there is a way to do this, I've not found it.  One instance where I needed to do something similar I ended up launching the QApplication executable as a separate process and communicated with it via STDIN/STDOUT.

