ERROR_HOTKEY_ALREADY_REGISTERED - 1409 (0x581)
Hot key is already registered.
Updated: Feb 21, 2026
Technical Meaning
The ERROR_HOTKEY_ALREADY_REGISTERED error code indicates that an attempt was made to register a hot key, but the specified hot key is already registered in the system. This error typically occurs when a program or application tries to re-register a hot key that has already been assigned.
Error Details
This error is returned by functions such as RegisterHotKey in the Windows API. The function fails and returns this error code if the specified hot key combination is already registered with another application or process.
Usage Context
The context for this error includes scenarios where an application attempts to register a hot key that has already been used by another part of the system, such as another application or the operating system itself. This can occur in various applications that require user input through keyboard shortcuts, like editors, media players, or custom utilities.
Developer Interpretation
When this error is encountered, it indicates that the hot key combination specified has already been registered by another component of the system. Developers should ensure that they are using unique and unregistered hot keys to avoid conflicts with other applications or system components.
Related Errors
ERROR_HOTKEY_NOT_REGISTERED(1408) - Indicates that a hot key was not found when attempting to unregister it.ERROR_HOTKEY_ALREADY_UNREGISTERED(1410) - Indicates that an attempt was made to unregister a hot key that is already unregistered.
FAQ
Q: What does the error code 1409 mean?
A: The error code 1409, ERROR_HOTKEY_ALREADY_REGISTERED, indicates that a specified hot key combination has already been registered by another application or component of the system. This prevents duplicate registration and ensures unique keyboard shortcuts.
Q: How can I resolve this issue?
A: Ensure that the hot key combination you are attempting to register is not already in use by another application or process. You may need to choose a different set of keys or ensure that any existing registrations for those keys are removed before re-registering them.
Summary
The ERROR_HOTKEY_ALREADY_REGISTERED error code signifies that an attempt was made to register a hot key combination that is already in use by another component of the system. Developers should take care to avoid conflicts and ensure unique registration of keyboard shortcuts.