fl_display_monitor.h

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// Copyright 2013 The Flutter Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
 
#ifndef FLUTTER_SHELL_PLATFORM_LINUX_FL_DISPLAY_MONITOR_H_
#define FLUTTER_SHELL_PLATFORM_LINUX_FL_DISPLAY_MONITOR_H_
 
#include <gdk/gdk.h>
 
#include "flutter/shell/platform/embedder/embedder.h"
#include "flutter/shell/platform/linux/public/flutter_linux/fl_engine.h"
 
G_BEGIN_DECLS
 
G_DECLARE_FINAL_TYPE(FlDisplayMonitor,
                     fl_display_monitor,
                     FL,
                     DISPLAY_MONITOR,
                     GObject);
 
/**
 * fl_display_monitor_new:
 * @engine: engine to update.
 * @display: display to monitor.
 *
 * Creates a new object to keep the engine updated with the currently used
 * displays. In GDK, a display is called a "monitor".
 *
 * Returns: a new #FlDisplayMontior.
 */
FlDisplayMonitor* fl_display_monitor_new(FlEngine* engine, GdkDisplay* display);
 
/**
 * fl_display_monitor_start:
 * @monitor: an #FlDisplayMonitor.
 *
 * Start monitoring for display changes.
 */
void fl_display_monitor_start(FlDisplayMonitor* monitor);
 
/**
 * fl_display_monitor_get_display_id:
 * @monitor: an #FlDisplayMonitor.
 * @gdk_monitor: GDK monitor to get display ID for.
 *
 * Get the ID Flutter is using for a given monitor.
 *
 * Returns: an ID or 0 if unknown.
 */
FlutterEngineDisplayId fl_display_monitor_get_display_id(
    FlDisplayMonitor* monitor,
    GdkMonitor* gdk_monitor);
 
G_END_DECLS
 
#endif  // FLUTTER_SHELL_PLATFORM_LINUX_FL_DISPLAY_MONITOR_H_