ERROR_INVALID_COMBOBOX_MESSAGE - 1422 (0x58E)
Invalid message for a combo box because it does not have an edit control.
Updated: Feb 21, 2026
Technical Meaning
The ERROR_INVALID_COMBOBOX_MESSAGE error code, with the numeric value of 1422 and the hexadecimal representation of 0x58E, is returned when an invalid message is sent to a combo box control that does not have an associated edit control. This indicates that the message being processed is incompatible or inappropriate for the current state of the combo box.
Error Details
A combo box in Windows can be either a simple list box or a drop-down list with an editable text field (edit control). The presence of this edit control allows users to type and modify the selected item. If the combo box does not have such an edit control, attempting to send certain messages that are typically intended for combo boxes with edit controls will result in this error.
Usage Context
This error is relevant when working with Windows API functions or message handling related to combo box controls. Developers should ensure that they are sending appropriate messages to the correct type of combo box control, taking into account whether an edit control is present.
Developer Interpretation
When encountering this error, developers should check the following:
- Ensure that the combo box in question has an associated edit control if the message being sent requires one. Messages such as
CB_SETEDITMATCHorCB_GETEDITSELare examples of those that require an edit control. - Verify that the correct type of combo box is being interacted with, and that it supports the messages being sent to it.
Related Errors
FAQ
Q: What does the ERROR_INVALID_COMBOBOX_MESSAGE error mean?
A: It indicates an invalid message for a combo box because it does not have an associated edit control.
Q: How can I avoid this error?
A: Ensure that you are sending appropriate messages to combo boxes and verify that they have the necessary edit controls if required by the message.
Summary
The ERROR_INVALID_COMBOBOX_MESSAGE is a specific error code indicating an invalid message for a combo box control without an associated edit control. Developers should pay attention to the type of combo box being used and ensure compatibility with the messages sent to it.