Struct Capturer 

pub struct Capturer {
    pub image: Option<Image>,
    /* private fields */
}

A screen capturer.

Can capture video frames with reasonable performance for screenshooting, recording, streaming, etc.

Fields

image: Option<Image>

Implementations

impl Capturer

pub fn new(capture_src: usize) -> Result<Capturer, String>

Construct a new capturer for a given capture source, e.g. a display.

pub fn geometry(&self) -> (u32, u32)

Returns the width and height of the area to capture

pub fn position(&self) -> (i32, i32)

Returns the horizontal and vertical offset of the capture source from the primary display.

pub fn capture_frame(&mut self) -> Result<Vec<Bgr8>, CaptureError>

Capture screen and return an owned Vec of the image color data

Worse performance than self.capture_store_frame(); self.get_stored_frame() due to an extra .to_vec() call.

pub fn capture_store_frame(&mut self) -> Result<(), CaptureError>

Capture screen and store in self for later retreival

Performs no unnecessary allocations or copies, and is as such faster than Self::capture_frame.

Recommended over Self::capture_frame unless an owned Vec is required.

pub fn get_stored_frame(&self) -> Option<&[Bgr8]>

Get the last frame stored in self by Self::capture_store_frame, if one has ever been stored.