Trait glib::value::FromValueOptional

pub trait FromValueOptional<'a>: StaticType + Sized {
    unsafe fn from_value_optional(_: &'a Value) -> Option<Self>;
}

Extracts a value.

Types that don't support a None value always return Some.

Required Methods

unsafe fn from_value_optional(_: &'a Value) -> Option<Self>

Implementors

• impl<'a> FromValueOptional<'a> for String
• impl<'a> FromValueOptional<'a> for &'a str
• impl<'a> FromValueOptional<'a> for bool
• impl<'a> FromValueOptional<'a> for i8
• impl<'a> FromValueOptional<'a> for u8
• impl<'a> FromValueOptional<'a> for i32
• impl<'a> FromValueOptional<'a> for u32
• impl<'a> FromValueOptional<'a> for i64
• impl<'a> FromValueOptional<'a> for u64
• impl<'a> FromValueOptional<'a> for f32
• impl<'a> FromValueOptional<'a> for f64