Function

Summary

Executes a function in the event process of a given interface if it is alive.

Package

capi

Signature

execute-with-interface-if-alive interface function &rest args => nil

Description

The function execute-with-interface-if-alive applies the function function to the arguments args in the process of the interface interface , if the interface is "alive". An interface is alive if it has a representation on the screen.

If interface is not alive, function is not applied. This is in contrast to execute-with-interface, which in this case applies the function in the current process.

execute-with-interface-if-alive is useful for automatic updating of interfaces that may be destroyed by the user, where the update is redundant if the interface is not alive.

Note: All accesses (reads as well as writes) on a CAPI interface and its sub-elements should be performed in the interface process.

See also

execute-with-interface