Struct lv2_raw::ui::LV2UIExternalUIWidget [−] [src]

#[repr(C)]
pub struct LV2UIExternalUIWidget {
    pub run: Option<extern "C" fn(_: *const LV2UIExternalUIWidget)>,
    pub show: Option<extern "C" fn(_: *const LV2UIExternalUIWidget)>,
    pub hide: Option<extern "C" fn(_: *const LV2UIExternalUIWidget)>,
}

When LV2_EXTERNAL_UI__Widget UI is instantiated, the returned LV2UI_Widget handle must be cast to pointer to LV2_External_UI_Widget. UI is created in invisible state.

Fields

run: Option<extern "C" fn(_: *const LV2UIExternalUIWidget)>

Host calls this function regulary. UI library implementing the callback may do IPC or redraw the UI.

@param this the UI context

show: Option<extern "C" fn(_: *const LV2UIExternalUIWidget)>

Host calls this function to make the plugin UI visible.

@param this the UI context

hide: Option<extern "C" fn(_: *const LV2UIExternalUIWidget)>

Host calls this function to make the plugin UI invisible again.

@param this the UI context