Sets a callback to be invoked when the entry is selected.
The entry to be updated.
A callback to be invoked when the entry is selected.
An optional pointer to pass extra data to the callback when it will be invoked.
Threadsafety: This function should be called on the thread that created the tray.
SDL_GetTrayEntries SDL_InsertTrayEntryAt
See Implementation
Sets a callback to be invoked when the entry is selected.