Struct _GParamSpecClass

#[repr(C)]
pub struct _GParamSpecClass {
    pub g_type_class: GTypeClass,
    pub value_type: GType,
    pub finalize: Option<unsafe extern "C" fn(pspec: *mut GParamSpec)>,
    pub value_set_default: Option<unsafe extern "C" fn(pspec: *mut GParamSpec, value: *mut GValue)>,
    pub value_validate: Option<unsafe extern "C" fn(pspec: *mut GParamSpec, value: *mut GValue) -> gboolean>,
    pub values_cmp: Option<unsafe extern "C" fn(pspec: *mut GParamSpec, value1: *const GValue, value2: *const GValue) -> gint>,
    pub value_is_valid: Option<unsafe extern "C" fn(pspec: *mut GParamSpec, value: *const GValue) -> gboolean>,
    pub dummy: [gpointer; 3],
}

GParamSpecClass: @g_type_class: the parent class @value_type: the #GValue type for this parameter @finalize: The instance finalization function (optional), should chain up to the finalize method of the parent class. @value_set_default: Resets a @value to the default value for this type (recommended, the default is g_value_reset()), see g_param_value_set_default(). @value_validate: Ensures that the contents of @value comply with the specifications set out by this type (optional), see g_param_value_validate(). @values_cmp: Compares @value1 with @value2 according to this type (recommended, the default is memcmp()), see g_param_values_cmp(). @value_is_valid: Checks if contents of @value comply with the specifications set out by this type, without modifying the value. This vfunc is optional. If it isn’t set, GObject will use @value_validate. Since 2.74

The class structure for the GParamSpec type. Normally, GParamSpec classes are filled by g_param_type_register_static().

Fields

g_type_class: GTypeClass

value_type: GType

finalize: Option<unsafe extern "C" fn(pspec: *mut GParamSpec)>

value_set_default: Option<unsafe extern "C" fn(pspec: *mut GParamSpec, value: *mut GValue)>

value_validate: Option<unsafe extern "C" fn(pspec: *mut GParamSpec, value: *mut GValue) -> gboolean>

values_cmp: Option<unsafe extern "C" fn(pspec: *mut GParamSpec, value1: *const GValue, value2: *const GValue) -> gint>

value_is_valid: Option<unsafe extern "C" fn(pspec: *mut GParamSpec, value: *const GValue) -> gboolean>

dummy: [gpointer; 3]

Trait Implementations

impl Clone for _GParamSpecClass

fn clone(&self) -> _GParamSpecClass

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for _GParamSpecClass

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl PartialEq for _GParamSpecClass

fn eq(&self, other: &_GParamSpecClass) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Copy for _GParamSpecClass

impl Eq for _GParamSpecClass

impl StructuralPartialEq for _GParamSpecClass