Module nw_sys::screen

Access to system display information, including system resolution, display layout and display layout change notification events.

Synopsis

// init must be called once during startup, before any function to nw.Screen can be called
nw_sys::screen::init_once();

let display_bounds_changed_callback = Callback::new(move |screen:JsValue|{
    let screen: nw_sys::screen::ScreenInfo = screen.try_into()?;
    log_info!("displayBoundsChanged: {:#?}", screen);
    Ok(())
});

let display_added_callback = Callback::new(move |screen:JsValue|{
    let screen: nw_sys::screen::ScreenInfo = screen.try_into()?;
    log_info!("displayAdded: {:#?}", screen);
    Ok(())
});

let display_removed_callback = Callback::new(move |screen:JsValue|{
    let screen: nw_sys::screen::ScreenInfo = screen.try_into()?;
    log_info!("displayRemoved: {:#?}", screen);
    Ok(())
});

// listen to screen events
nw_sys::screen::on("displayBoundsChanged", display_bounds_changed_callback.as_ref());
nw_sys::screen::on("displayAdded", display_added_callback.as_ref());
nw_sys::screen::on("displayRemoved", display_removed_callback.as_ref());

// save callbacks somewhere
app.push_callback(display_bounds_changed_callback)?;
app.push_callback(display_added_callback)?;
app.push_callback(display_removed_callback)?;

Screen

Synopsis

use workflow_wasm::prelude::*;

// init must be called once during startup, before any function to nw.Screen can be called
nw_sys::screen::init_once();

let display_bounds_changed_callback = callback!(move |screen:JsValue|{
    let screen: nw_sys::screen::ScreenInfo = screen.try_into()?;
    log_info!("displayBoundsChanged: {:#?}", screen);
    Ok(())
});

let display_added_callback = callback!(move |screen:JsValue|{
    let screen: nw_sys::screen::ScreenInfo = screen.try_into()?;
    log_info!("displayAdded: {:#?}", screen);
    Ok(())
});

let display_removed_callback = callback!(move |screen:JsValue|{
    let screen: nw_sys::screen::ScreenInfo = screen.try_into()?;
    log_info!("displayRemoved: {:#?}", screen);
    Ok(())
});

// listen to screen events
nw_sys::screen::on("displayBoundsChanged", display_bounds_changed_callback.into_js());
nw_sys::screen::on("displayAdded", display_added_callback.into_js());
nw_sys::screen::on("displayRemoved", display_removed_callback.into_js());

// save callbacks somewhere
app.push_callback(display_bounds_changed_callback)?;
app.push_callback(display_added_callback)?;
app.push_callback(display_removed_callback)?;

Modules

• desktop_capture_monitor

Structs

• Bounds
  physical screen resolution, can be negative, not necessarily start from 0, depending on screen arrangement
• ScreenInfo
  Screen Info
• WorkArea
  useable area within the screen bound

Enums

• MediaSources
  Media source type

Functions

• choose_desktop_media
  Choose desktop media
• init
  Init the Screen singleton object, you only need to call this once
• init_once
  Call the screen::init() if screen is not initialized yet
• is_initialized
  Return true is screen is initialized
• on
  Interface for accessing display & monitor layout information. For usage example please refer to nw_sys::screen
• screens
  Get the array of screen (number of screen connected to the computer)