screenshot.rs

impl eframe::App for MyApp {
    fn update(&mut self, ctx: &egui::Context, _frame: &mut eframe::Frame) {
        if self.captures.is_none() {
            self.captures = Some(take_screenshot());
        }

        egui::CentralPanel::default().show(ctx, |ui| {
            egui::ScrollArea::both().show(ui, |ui| {
                if let Some(captures) = &self.captures {
                    captures.iter().for_each(|capture| {

                        let color_image = ColorImage::from_rgba_unmultiplied(
                            [
                                capture.data.width() as usize,
                                capture.data.height() as usize,
                            ], capture.data.as_raw()
                        );

                        let texture = ui.ctx().load_texture(
                            capture.title.clone(),
                            color_image,
                            Default::default(),
                        );


                        // what next?
                    });
                }
            });
        });
    }
}