How to hide Startmenu

[jfheins]

You could try to redirect the messages of the button.

IOW:

YourVariable := MessageLoopOfStartButton;
MessageLoopOfStartbutton := YourCustomMessageLoop;

In YourCustomMessageLoop you can pass every message to the former message-loop except for the click-message, which you can handle yourself. This way, the button will never notice when the user clicks it