ERROR_INVALID_FLAGS - 1004 (0x3EC)

Technical Meaning

The ERROR_INVALID_FLAGS error code, represented by the numeric value 1004 or its hexadecimal equivalent 0x3EC, is returned when a function call includes invalid flags. This indicates that one or more of the provided flags do not match the expected values for the specific operation being performed.

Error Details

This error typically occurs in scenarios where a Windows API function expects certain flags to be set based on the context or requirements of the operation. If these expectations are not met, the system returns ERROR_INVALID_FLAGS to indicate that the provided flags are invalid.

Usage Context

The usage context for this error is primarily within the realm of parameter validation during function calls. It can occur in various APIs where flags are used to modify or control the behavior of operations such as file I/O, device management, and system configuration.

Developer Interpretation

When encountering ERROR_INVALID_FLAGS, developers should review the documentation for the specific API function that generated this error. The error suggests that one or more of the provided flags do not conform to the expected values defined by the function's parameters. Developers must ensure that all flags used in a function call are valid and correctly set according to the function’s requirements.

Related Errors

• ERROR_INVALID_PARAMETER (1208, 0x4C8): This error is similar but can be returned for invalid parameter values rather than just flags. Developers should check both parameters and flags when encountering this error.
• ERROR_SUCCESS (0, 0x0): The opposite of ERROR_INVALID_FLAGS, indicating that the function call was successful with valid parameters and flags.

FAQ

Q: What does ERROR_INVALID_FLAGS mean?

A: It indicates that one or more provided flags in a function call are invalid according to the expected values defined by the API function.

Q: How can I resolve this error?

A: Review the documentation for the specific API function and ensure that all flags used are valid and correctly set. Verify that the operation context and parameter values meet the requirements of the function.

Summary

ERROR_INVALID_FLAGS is a specific error code indicating invalid flags in a function call. Developers should consult the relevant API documentation to understand the expected flag values for their operations and ensure correct usage to avoid this error.