Hi,

  We have some in-house plug-ins for Studio, which can be activated both by shortcut keys (Alt+letter) and by context menu or an icon.

  We have noticed the following strange behaviour:

• when the plug-ins are activated by the context menu or from their icon, they run silently (no sound).
• when activated by an "Alt+letter" shortcut key, each time a (custom) dialog or an external window is opened, the Windows default beep is playing. For a frequently-used plug-in, this can be quite annoying.
• however, when we change the shortcut key to "Ctrl+Alt+something", the beep is no longer there.

  How can the silent operation be ensured with the Alt-shortcut keys? Is it something to be added to the code of the plug-in? Or does it have to do with the fact that Alt invokes main menu items by default (but in this case, why the silent operation if no dialogs are shown)?

Thanks,
Attila