Function dispatch_ui_event 

pub fn dispatch_ui_event<T>(block: impl FnOnce() -> T) -> Option<T>

Dispatches a UI event in a proper snapshot context.

This is a convenience wrapper around run_in_mutable_snapshot that returns Option<T> instead of Result<T, &str>.

Example

// In a keyboard event handler:
dispatch_ui_event(|| {
    text_field_state.edit(|buffer| {
        buffer.insert("a");
    });
});