devela::_dep::sdl2::sys

Struct SDL_RWops

#[repr(C)]
pub struct SDL_RWops {
    pub size: Option<unsafe extern "C" fn(_: *mut SDL_RWops) -> i64>,
    pub seek: Option<unsafe extern "C" fn(_: *mut SDL_RWops, _: i64, _: i32) -> i64>,
    pub read: Option<unsafe extern "C" fn(_: *mut SDL_RWops, _: *mut c_void, _: usize, _: usize) -> usize>,
    pub write: Option<unsafe extern "C" fn(_: *mut SDL_RWops, _: *const c_void, _: usize, _: usize) -> usize>,
    pub close: Option<unsafe extern "C" fn(_: *mut SDL_RWops) -> i32>,
    pub type_: u32,
    pub hidden: SDL_RWops__bindgen_ty_1,
}
Available on crate feature dep_sdl2 only.
Expand description

This is the read/write operation structure – very basic.

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§size: Option<unsafe extern "C" fn(_: *mut SDL_RWops) -> i64>

Return the size of the file in this rwops, or -1 if unknown

§seek: Option<unsafe extern "C" fn(_: *mut SDL_RWops, _: i64, _: i32) -> i64>

Seek to \c offset relative to \c whence, one of stdio’s whence values: RW_SEEK_SET, RW_SEEK_CUR, RW_SEEK_END

\return the final offset in the data stream, or -1 on error.

§read: Option<unsafe extern "C" fn(_: *mut SDL_RWops, _: *mut c_void, _: usize, _: usize) -> usize>

Read up to \c maxnum objects each of size \c size from the data stream to the area pointed at by \c ptr.

\return the number of objects read, or 0 at error or end of file.

§write: Option<unsafe extern "C" fn(_: *mut SDL_RWops, _: *const c_void, _: usize, _: usize) -> usize>

Write exactly \c num objects each of size \c size from the area pointed at by \c ptr to data stream.

\return the number of objects written, or 0 at error or end of file.

§close: Option<unsafe extern "C" fn(_: *mut SDL_RWops) -> i32>

Close and free an allocated SDL_RWops structure.

\return 0 if successful or -1 on write error when flushing data.

§type_: u32§hidden: SDL_RWops__bindgen_ty_1

Trait Implementations§

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impl Clone for SDL_RWops

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fn clone(&self) -> SDL_RWops

Returns a copy of the value. Read more
1.0.0 · Source§

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

Performs copy-assignment from source. Read more
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impl Copy for SDL_RWops

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