Struct rich_sdl2_rust::gl_context::GlContext

pub struct GlContext<'window> { /* private fields */ }

An OpenGL context controller.

Implementations

impl<'window> GlContext<'window>

pub fn new(window: &'window Window<'_>) -> Option<Self>

Constructs from a reference to Window, or Err on failure.

pub fn as_ptr(&self) -> *mut c_void

Returns the internal pointer of the OpenGL context.

pub fn drawable_size(&self) -> Size

Returns the size that can be used to draw.

pub fn supported_extension(&self, name: &'static str) -> bool

Returns whether the extension name is supported.

Panics

Panics if name contains a null character.

pub fn load_lib(&self, path: &str) -> Result<()>

Loads the library from path.

Errors

Returns Err if failed to load the library.

Panics

Panics if path contains a null character.

pub fn unload_lib_all(&self)

Unloads all of loaded libraries.

pub unsafe fn proc_address(&self, proc: &str) -> *mut c_void

Returns the raw address of the procedure.

Safety

This return value is valid only on supported the extension. You must check by supported_extension before casting to any function pointer.

Panics

Panics if proc contains a null character.

Trait Implementations

impl BufferExt for GlContext<'_>

fn set_swap_interval(&self, interval_kind: IntervalKind) -> Result<()>

Sets the interval mode of swapping buffers.

fn swap_buffer(&self)

Swaps buffers immediately.

impl Debug for GlContext<'_>

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

Formats the value using the given formatter.

impl<'window> Drop for GlContext<'window>

fn drop(&mut self)

Executes the destructor for this type.