manfredcc / wp_change_daemon

A wallpaper-change program starts at the beginning of system, basic on feh.

WP Change Daemon

Brief description

This is a wallpaper-changing daemon that starts at the beginning of the system, based on feh. You can replace it with your command on your PC.

For ubuntu

sudo apt-get install feh

Date	Author	Description
2023/12/04	Manfred	First release
2023/12/05	Manfred	Add message queue for response
2023/12/05	Manfred	Add exit program action
2023/12/05	Manfred	Add go back switch method
2023/12/07	Manfred	Add makefile and fixed some bugs

Rough Design

Features

• Automatically change the wallpaper at predetermined intervals
• There are 3 methods to switch wallpapers: sequential, random, and by name

Require

• Offer a user-friendly interface interface
• Runs well with scripts

Input/Output

Event	Code	Action
0	0	Disable change-wallpaper automatically
0	1	Enable change-wallpaper automatically
1	0	Switch default method to sequence
1	1	Switch default method to random
2	0	Set wallpaper sequentially
2	1	Set wallpaper randomly
3	0	Go back to the previous wallpaper
3	1	Exit program
4 - 9		Reserved

Example

21 means:

Event : 2

Code : 1

Action : Set wallpaper randomly

Guide

Tree

Step -1-

First you need to create a directory to store wallpapers, and then do some configuration in ego_wp_change_daemon.c

Notice : change the string named wp_dir at the end of this picture, replace it with your photo repository

Step -2-

Compiling the code with command make, then ego_wp_change_daemon and ego_wp_change_send will be added in current directory

Step -3-

Run ego_wp_change_daemon as a daemon in system, the wallpaper will run by default configuration.

./ego_wp_change_daemon &

Run ego_wp_change_send with parameters when you need to control the action of ego_wp_change_daemon, see Input/Output for more details about parameters.

Example

./ego_wp_change_send 20

Switch to the next wallpaper

What's more

You may notice that there is a shell script named ego_control.sh, it is used with Rofi.

sudo apt-get install rofi

When you run this script for the first time, the ego_wp_change_daemon will be invoked. Afterward, you will encounter a user-friendly interface to control the ego_wp_change_daemon every time you run this script.

When I called Rofi, it is embarrassing that I couldn't bring up my snipping tool to take a screen-shot

As advice, it is recommended to execute this script at system startup, as that is how it was designed.