Struct x11rb_protocol::protocol::xproto::GetPropertyReply

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pub struct GetPropertyReply {
    pub format: u8,
    pub sequence: u16,
    pub length: u32,
    pub type_: Atom,
    pub bytes_after: u32,
    pub value_len: u32,
    pub value: Vec<u8>,
}
Expand description

§Fields

  • format - Specifies whether the data should be viewed as a list of 8-bit, 16-bit, or 32-bit quantities. Possible values are 8, 16, and 32. This information allows the X server to correctly perform byte-swap operations as necessary.
  • type - The actual type of the property (an atom).
  • bytes_after - The number of bytes remaining to be read in the property if a partial read was performed.
  • value_len - The length of value. You should use the corresponding accessor instead of this field.

Fields§

§format: u8§sequence: u16§length: u32§type_: Atom§bytes_after: u32§value_len: u32§value: Vec<u8>

Implementations§

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impl GetPropertyReply

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pub fn value8(&self) -> Option<impl Iterator<Item = u8> + '_>

Iterate over the contained value if its format is 8.

This function checks if the format member of the reply is 8. If it it is not, None is returned. Otherwise and iterator is returned that interprets the value in this reply as type u8.

§Examples

Successfully iterate over the value:

// First, we have to 'invent' a GetPropertyReply.
let reply = x11rb_protocol::protocol::xproto::GetPropertyReply {
    format: 8,
    sequence: 0,
    length: 0, // This value is incorrect
    type_: 0, // This value is incorrect
    bytes_after: 0,
    value_len: 4,
    value: vec![1, 2, 3, 4],
};

// This is the actual example: Iterate over the value.
let mut iter = reply.value8().unwrap();
assert_eq!(iter.next(), Some(1));
assert_eq!(iter.next(), Some(2));
assert_eq!(iter.next(), Some(3));
assert_eq!(iter.next(), Some(4));
assert_eq!(iter.next(), None);

An iterator is only returned when the format is correct. The following example shows this.

// First, we have to 'invent' a GetPropertyReply.
let reply = x11rb_protocol::protocol::xproto::GetPropertyReply {
    format: 42, // Not allowed in X11, but used for the example
    sequence: 0,
    length: 0, // This value is incorrect
    type_: 0, // This value is incorrect
    bytes_after: 0,
    value_len: 4,
    value: vec![1, 2, 3, 4],
};
assert!(reply.value8().is_none());
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pub fn value16(&self) -> Option<impl Iterator<Item = u16> + '_>

Iterate over the contained value if its format is 16.

This function checks if the format member of the reply is 16. If it it is not, None is returned. Otherwise and iterator is returned that interprets the value in this reply as type u16.

§Examples

Successfully iterate over the value:

// First, we have to 'invent' a GetPropertyReply.
let reply = x11rb_protocol::protocol::xproto::GetPropertyReply {
    format: 16,
    sequence: 0,
    length: 0, // This value is incorrect
    type_: 0, // This value is incorrect
    bytes_after: 0,
    value_len: 4,
    value: vec![1, 1, 2, 2],
};

// This is the actual example: Iterate over the value.
let mut iter = reply.value16().unwrap();
assert_eq!(iter.next(), Some(257));
assert_eq!(iter.next(), Some(514));
assert_eq!(iter.next(), None);

An iterator is only returned when the format is correct. The following example shows this.

// First, we have to 'invent' a GetPropertyReply.
let reply = x11rb_protocol::protocol::xproto::GetPropertyReply {
    format: 42, // Not allowed in X11, but used for the example
    sequence: 0,
    length: 0, // This value is incorrect
    type_: 0, // This value is incorrect
    bytes_after: 0,
    value_len: 4,
    value: vec![1, 2, 3, 4],
};
assert!(reply.value16().is_none());
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pub fn value32(&self) -> Option<impl Iterator<Item = u32> + '_>

Iterate over the contained value if its format is 32.

This function checks if the format member of the reply is 32. If it it is not, None is returned. Otherwise and iterator is returned that interprets the value in this reply as type u32.

§Examples

Successfully iterate over the value:

// First, we have to 'invent' a GetPropertyReply.
let reply = x11rb_protocol::protocol::xproto::GetPropertyReply {
    format: 32,
    sequence: 0,
    length: 0, // This value is incorrect
    type_: 0, // This value is incorrect
    bytes_after: 0,
    value_len: 4,
    value: vec![1, 2, 2, 1],
};

// This is the actual example: Iterate over the value.
let mut iter = reply.value32().unwrap();
assert_eq!(iter.next(), Some(16908801));
assert_eq!(iter.next(), None);

An iterator is only returned when the format is correct. The following example shows this.

// First, we have to 'invent' a GetPropertyReply.
let reply = x11rb_protocol::protocol::xproto::GetPropertyReply {
    format: 42, // Not allowed in X11, but used for the example
    sequence: 0,
    length: 0, // This value is incorrect
    type_: 0, // This value is incorrect
    bytes_after: 0,
    value_len: 4,
    value: vec![1, 2, 3, 4],
};
assert!(reply.value32().is_none());

Trait Implementations§

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impl Clone for GetPropertyReply

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fn clone(&self) -> GetPropertyReply

Returns a copy of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Debug for GetPropertyReply

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

Formats the value using the given formatter. Read more
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impl Default for GetPropertyReply

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fn default() -> GetPropertyReply

Returns the “default value” for a type. Read more
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impl<'de> Deserialize<'de> for GetPropertyReply

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fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>
where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer. Read more
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impl From<GetPropertyReply> for Reply

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fn from(reply: GetPropertyReply) -> Reply

Converts to this type from the input type.
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impl Hash for GetPropertyReply

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fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher. Read more
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fn hash_slice<H>(data: &[Self], state: &mut H)
where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher. Read more
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impl Ord for GetPropertyReply

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fn cmp(&self, other: &GetPropertyReply) -> Ordering

This method returns an Ordering between self and other. Read more
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fn max(self, other: Self) -> Self
where Self: Sized,

Compares and returns the maximum of two values. Read more
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fn min(self, other: Self) -> Self
where Self: Sized,

Compares and returns the minimum of two values. Read more
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fn clamp(self, min: Self, max: Self) -> Self
where Self: Sized + PartialOrd,

Restrict a value to a certain interval. Read more
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impl PartialEq for GetPropertyReply

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

This method tests for self and other values to be equal, and is used by ==.
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fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl PartialOrd for GetPropertyReply

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fn partial_cmp(&self, other: &GetPropertyReply) -> Option<Ordering>

This method returns an ordering between self and other values if one exists. Read more
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fn lt(&self, other: &Rhs) -> bool

This method tests less than (for self and other) and is used by the < operator. Read more
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fn le(&self, other: &Rhs) -> bool

This method tests less than or equal to (for self and other) and is used by the <= operator. Read more
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fn gt(&self, other: &Rhs) -> bool

This method tests greater than (for self and other) and is used by the > operator. Read more
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fn ge(&self, other: &Rhs) -> bool

This method tests greater than or equal to (for self and other) and is used by the >= operator. Read more
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impl Serialize for GetPropertyReply

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type Bytes = Vec<u8>

The value returned by serialize. Read more
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fn serialize(&self) -> Vec<u8>

Serialize this value into X11 raw bytes.
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fn serialize_into(&self, bytes: &mut Vec<u8>)

Serialize this value into X11 raw bytes, appending the result into bytes. Read more
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impl Serialize for GetPropertyReply

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fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>
where __S: Serializer,

Serialize this value into the given Serde serializer. Read more
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impl TryParse for GetPropertyReply

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fn try_parse(initial_value: &[u8]) -> Result<(Self, &[u8]), ParseError>

Try to parse the given values into an instance of this type. Read more
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impl Eq for GetPropertyReply

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impl StructuralPartialEq for GetPropertyReply

Auto Trait Implementations§

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T> ToOwned for T
where T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.
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impl<T> TryParseFd for T
where T: TryParse,

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fn try_parse_fd<'a>( value: &'a [u8], _: &mut Vec<OwnedFd> ) -> Result<(T, &'a [u8]), ParseError>

Try to parse the given values into an instance of this type. Read more
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impl<T> DeserializeOwned for T
where T: for<'de> Deserialize<'de>,