Struct glutin::Window

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pub struct Window { /* private fields */ }

Expand description

Represents an OpenGL context and the Window or environment around it.

Example

let window = Window::new().unwrap();

unsafe { window.make_current() };

loop {
    for event in window.poll_events() {
        match(event) {
            // process events here
            _ => ()
        }
    }

    // draw everything here

    window.swap_buffers();
    std::old_io::timer::sleep(17);
}

Implementations§

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impl Window

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pub fn new() -> Result<Window, CreationError>

Creates a new OpenGL context, and a Window for platforms where this is appropriate.

This function is equivalent to WindowBuilder::new().build().

Error should be very rare and only occur in case of permission denied, incompatible system, out of memory, etc.

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pub fn set_title(&self, title: &str)

Modifies the title of the window.

This is a no-op if the window has already been closed.

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pub fn show(&self)

Shows the window if it was hidden.

pub fn hide(&self)

Hides the window if it was visible.

pub fn get_position(&self) -> Option<(i32, i32)>

Returns the position of the top-left hand corner of the window relative to the top-left hand corner of the desktop.

Note that the top-left hand corner of the desktop is not necessarily the same as the screen. If the user uses a desktop with multiple monitors, the top-left hand corner of the desktop is the top-left hand corner of the monitor at the top-left of the desktop.

The coordinates can be negative if the top-left hand corner of the window is outside of the visible screen region.

Returns None if the window no longer exists.

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pub fn set_position(&self, x: i32, y: i32)

Modifies the position of the window.

See get_position for more informations about the coordinates.

This is a no-op if the window has already been closed.

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pub fn get_inner_size(&self) -> Option<(u32, u32)>

Returns the size in points of the client area of the window.

The client area is the content of the window, excluding the title bar and borders. To get the dimensions of the frame buffer when calling glViewport, multiply with hidpi factor.

Returns None if the window no longer exists.

DEPRECATED

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pub fn get_inner_size_points(&self) -> Option<(u32, u32)>

Returns the size in points of the client area of the window.

The client area is the content of the window, excluding the title bar and borders. To get the dimensions of the frame buffer when calling glViewport, multiply with hidpi factor.

Returns None if the window no longer exists.

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pub fn get_inner_size_pixels(&self) -> Option<(u32, u32)>

Returns the size in pixels of the client area of the window.

The client area is the content of the window, excluding the title bar and borders. These are the dimensions of the frame buffer, and the dimensions that you should use when you call glViewport.

Returns None if the window no longer exists.

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pub fn get_outer_size(&self) -> Option<(u32, u32)>

Returns the size in pixels of the window.

These dimensions include title bar and borders. If you don’t want these, you should use use get_inner_size instead.

Returns None if the window no longer exists.

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pub fn set_inner_size(&self, x: u32, y: u32)

Modifies the inner size of the window.

See get_inner_size for more informations about the values.

This is a no-op if the window has already been closed.

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pub fn poll_events(&self) -> PollEventsIterator<'_> ⓘ

Returns an iterator that poll for the next event in the window’s events queue. Returns None if there is no event in the queue.

Contrary to wait_events, this function never blocks.

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pub fn wait_events(&self) -> WaitEventsIterator<'_> ⓘ

Returns an iterator that returns events one by one, blocking if necessary until one is available.

The iterator never returns None.

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pub unsafe fn make_current(&self) -> Result<(), ContextError>

Sets the context as the current context.

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pub fn is_current(&self) -> bool

Returns true if this context is the current one in this thread.

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pub fn get_proc_address(&self, addr: &str) -> *const ()

Returns the address of an OpenGL function.

Contrary to wglGetProcAddress, all available OpenGL functions return an address.

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pub fn swap_buffers(&self) -> Result<(), ContextError>

Swaps the buffers in case of double or triple buffering.

You should call this function every time you have finished rendering, or the image may not be displayed on the screen.

Warning: if you enabled vsync, this function will block until the next time the screen is refreshed. However drivers can choose to override your vsync settings, which means that you can’t know in advance whether swap_buffers will block or not.

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pub unsafe fn platform_display(&self) -> *mut c_void

DEPRECATED. Gets the native platform specific display for this window. This is typically only required when integrating with other libraries that need this information.

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pub unsafe fn platform_window(&self) -> *mut c_void

DEPRECATED. Gets the native platform specific window handle. This is typically only required when integrating with other libraries that need this information.

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pub fn get_api(&self) -> Api

Returns the API that is currently provided by this window.

On Windows and OS/X, this always returns OpenGl.
On Android, this always returns OpenGlEs.
On Linux, it must be checked at runtime.

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pub fn get_pixel_format(&self) -> PixelFormat

Returns the pixel format of this window.

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pub fn create_window_proxy(&self) -> WindowProxy

Create a window proxy for this window, that can be freely passed to different threads.

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pub fn set_window_resize_callback( &mut self, callback: Option<fn(_: u32, _: u32)> )

Sets a resize callback that is called by Mac (and potentially other operating systems) during resize operations. This can be used to repaint during window resizing.

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pub fn set_cursor(&self, cursor: MouseCursor)

Modifies the mouse cursor of the window. Has no effect on Android.

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pub fn hidpi_factor(&self) -> f32

Returns the ratio between the backing framebuffer resolution and the window size in screen pixels. This is typically one for a normal display and two for a retina display.

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