System Messages

System-level notifications and synchronization. More...

Collaboration diagram for System Messages:

Variables
const char *const	kMsgDSecureInputNotification
	Secure input notification (macOS).
const char *const	kMsgDLanguageSynchronisation
	Language synchronization.

Detailed Description

System-level notifications and synchronization.

Variable Documentation

kMsgDLanguageSynchronisation

const char* const kMsgDLanguageSynchronisation

extern

Language synchronization.

Message Code: "LSYN" Direction: Primary → Secondary Format: "LSYNs" Parameters:

• $1: Language list (string) - Available server languages

Example:

Server supports English, French, German, Spanish

"LSYN\x00\x00\x00\x0Ben,fr,de,es"

Synchronizes keyboard language/layout information between primary and secondary screens. Helps ensure proper character mapping when different keyboard layouts are used.

Language Format:

• Comma-separated list of language codes
• Uses standard ISO 639-1 language codes
• Primary language listed first

Since

Protocol version 1.8

kMsgDSecureInputNotification

const char* const kMsgDSecureInputNotification

extern

Secure input notification (macOS).

Message Code: "SECN" Direction: Primary → Secondary Format: "SECNs" Parameters:

• $1: Application name (string) - App requesting secure input

Example:

Terminal app is requesting secure input

"SECN\x00\x00\x00\x08Terminal"

Notifies the secondary screen when an application on the primary requests secure input mode. This is primarily a macOS feature where certain applications (like password fields) can request exclusive keyboard access.

The secondary can use this information to:

• Display security warnings to the user
• Temporarily disable input forwarding
• Show which application is requesting secure input

Since

Protocol version 1.7