Hi. I want to dynamically load a .ui file. I know to use QUILoader.

Supposing the widget the .ui file describes new signals and slots. If this was a compile-time problem, I could generate the ui_foo.h and implement the slot in code.

Since this is all dynamic, when I load the .ui file, the widget will have slots with no definitions. I have constructed a simple example:

Qt Code: 
  1. <?xml version="1.0" encoding="UTF-8"?>
  2. <ui version="4.0">
  3.  <class>Form</class>
  4.  <widget class="QWidget" name="my_widget">
  5.   <widget class="QPushButton" name="pushButton">
  6.   </widget>
  7.  </widget>
  8.  <resources/>
  9.  <connections>
  10.   <connection>
  11.    <sender>pushButton</sender>
  12.    <signal>clicked()</signal>
  13.    <receiver>Form</receiver>
  14.    <slot>my_slot()</slot>
  15.   </connection>
  16.  </connections>
  17.  <slots>
  18.   <slot>my_slot()</slot>
  19.  </slots>
  20. </ui>
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Now suppose I do something like this:
Qt Code: 
  1. QUiLoader loader;
  2. QFile file("my_widget.ui");
  3. file.open(QFile::ReadOnly);=
  4. QWidget * my_widget = loader.load(&file, this);
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What happens when I click the button? my_slot() isn't defined.

I want to intercept calls to my_slot but I have no idea how. Something clever with QMetaObject maybe?