wl_keyboard_listener.modifiers

Undocumented in source but is binding to C. You might be able to learn more by searching the web for its name.
struct wl_keyboard_listener
extern (C) @nogc nothrow
void function(void* data, wl_keyboard* wl_keyboard, uint serial, uint mods_depressed, uint mods_latched, uint mods_locked, uint group) modifiers;

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