Struct OptionsChangedContext

pub struct OptionsChangedContext<'a> {
    pub(crate) environment_callback: &'a retro_environment_t,
    pub(crate) interfaces: Arc<RwLock<InterfaceList>>,
}

Functions that are safe to be called in Core::on_options_changed

Fields

environment_callback: &'a retro_environment_t

interfaces: Arc<RwLock<InterfaceList>>

Implementations

impl<'a> OptionsChangedContext<'a>

pub(crate) fn new( environment_callback: &'a retro_environment_t, interfaces: Arc<RwLock<InterfaceList>>, ) -> Self

impl OptionsChangedContext<'_>

pub fn get_variable<'a>(&self, key: &'a str) -> Option<&'a str>

Interface to acquire user-defined information from environment that cannot feasibly be supported in a multi-system way.

The key should be set to a key which has already been set by set_variables or set_core_options.

Returns None if the variable could not be found.

Trait Implementations

impl<'a> From<&OptionsChangedContext<'a>> for GenericContext<'a>

fn from(other: &OptionsChangedContext<'a>) -> GenericContext<'a>

Converts to this type from the input type.

impl<'a> From<&mut OptionsChangedContext<'a>> for GenericContext<'a>

fn from(other: &mut OptionsChangedContext<'a>) -> GenericContext<'a>

Converts to this type from the input type.