enable / disable menu items with function

[Martin Walter]

I would like to enable/disable menu items by a function.

some examples where I need this:
1: only if there is a window or door selected a menu item shall be enabled
2: only if username and password are filled in my settings dialog the other menu items shall be enabled

How is this possible?

[Ralph Wessel]

The status of menu items can be managed using ACAPI_Interface with APIIo_SetMenuItemFlagsID.

[Martin Walter]

The function works, but it's not clear when to call it.

I want some menu items to be enabled/disabled from program start.

[Martin Walter · Accepted solution]

Finally I solved it by returning APIAddon_Preload from CheckEnvironment().
Then Initialize() is called at the Start of Archicad.

[dushyant]

Why did you return APIAddon_Preload from CheckEnvironment() instead of APIAddon_Normal?