I want to make a custom operation (for example, writes "hello world" to a file). In the Installer, I want a custom page with a button, a click sould execute the operation.

First, I wrote the operation in C++ ( as shown in "custom operation documentation":http://doc-snapshot.qt-project.org/qtifw-1.3/scripting.html#registering-custom-operations ), I compiled the Installer Framework after adding the operation.
In the Installer project, I created a UI with the designer and added it to the product in the packages section, I loaded the UI in a qs script. This works, the new page appears in the installer. now the questions:

• In the UI, there is a button, how do I connect to the click event in the qs script?
• how do I execute my new operation correctly?

I don't know if my operation even works. I tried to execute the operation manually by calling:
@MyInstaller.exe --runoperation "MyOperation"@

the installer generated a logfile with the following content:

@
Operations end: 16
Resource count: 1
Data block size: 17779381
Magic marker: 302133811
Magic cookie: 14007050384008702200
Index size: 48
End of data: 30592181
Number of operations: 0
@

according to the last line, I thing the operation was not executed.

Is there somewhere a running example for operations? (and please no links to the documentation, there is only a snippet of code but no word how to compile it...)