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Version: v1.3.5

Callbacks

HyprDynamicMonitors supports custom user commands that are executed before and after profile configuration changes. These commands can be defined globally or per-profile.

Global Callbacks​

Define commands that run for all profile changes:

[general]
pre_apply_exec = "notify-send 'HyprDynamicMonitors' 'Switching monitor profile...'"
post_apply_exec = "notify-send 'HyprDynamicMonitors' 'Profile applied successfully'"

Profile-Specific Callbacks​

Override global callbacks for specific profiles:

[profiles.gaming_setup]
config_file = "hyprconfigs/gaming.conf"
pre_apply_exec = "notify-send 'Gaming Mode' 'Activating high-performance profile'"
post_apply_exec = "/usr/local/bin/gaming-mode-on.sh"

Profile-specific commands override global commands for that profile.

Callback Types​

pre_apply_exec​

Executed before the new monitor configuration is applied.

Use cases:

  • Send notifications about upcoming changes
  • Prepare the system for configuration change
  • Save current state
  • Close applications that might interfere

Example:

pre_apply_exec = "killall -SIGUSR1 waybar"  # Reload waybar before change

post_apply_exec​

Executed after the new monitor configuration is successfully applied.

Use cases:

  • Send success notifications
  • Trigger dependent scripts
  • Reload related applications
  • Adjust system settings based on new configuration

Example:

post_apply_exec = "hyprctl reload && systemctl --user restart waybar"

Shell Execution​

Commands are executed through bash -c, supporting:

  • Shell features (pipes, redirects, environment variables)
  • Multiple commands with && or ;
  • Background processes with &

Examples:

# Multiple commands
post_apply_exec = "hyprctl reload && sleep 1 && notify-send 'Done'"

# Using pipes
post_apply_exec = "hyprctl monitors | grep -q eDP-1 && notify-send 'Laptop screen active'"

# Background process
post_apply_exec = "sleep 2 && restart-dependent-apps.sh &"

Failure Handling​

If exec commands fail:

  • The error is logged
  • The service continues operating normally
  • Monitor configuration is not rolled back

This ensures that a failing callback doesn't interrupt monitor configuration.

Manual Hyprland Reload​

If you have disable_autoreload = true in Hyprland settings, use callbacks to reload manually:

[general]
post_apply_exec = "hyprctl reload"

Use Cases​

Conditional Actions​

[profiles.docked]
config_file = "hyprconfigs/docked.conf"
post_apply_exec = "systemctl --user start docked-setup.service"

[profiles.laptop_only]
config_file = "hyprconfigs/laptop.conf"
post_apply_exec = "systemctl --user stop docked-setup.service"

Workspace Management​

post_apply_exec = "hyprctl dispatch workspace 1"  # Switch to workspace 1 after config change

Application Restart​

post_apply_exec = "killall waybar eww && sleep 1 && waybar & eww daemon &"

Logging​

post_apply_exec = "echo \"$(date): Applied profile\" >> ~/hyprdynamicmonitors.log"

See Also​