Module dispatch_queue 

Dispatch Queue wrapper for custom queue management

This module provides a safe Rust wrapper around GCD (Grand Central Dispatch) queues that can be used with ScreenCaptureKit streams.

When to Use Custom Queues

By default, stream output handlers are called on a system-managed queue. Use a custom queue when you need:

• Priority control - Use UserInteractive QoS for low-latency UI updates
• Thread isolation - Ensure handlers run on a specific queue
• Performance tuning - Adjust queue priority based on your app’s needs

Example

use screencapturekit::dispatch_queue::{DispatchQueue, DispatchQoS};
use screencapturekit::prelude::*;

// Create a high-priority queue for frame processing
let queue = DispatchQueue::new("com.myapp.capture", DispatchQoS::UserInteractive);

let mut stream = SCStream::new(&filter, &config);
stream.add_output_handler_with_queue(
    |_sample, _type| println!("Got frame!"),
    SCStreamOutputType::Screen,
    Some(&queue)
);

Structs

DispatchQueue

A wrapper around GCD DispatchQueue

Enums

DispatchQoS

Quality of Service levels for dispatch queues