ERROR - mkilgore/QB64pe GitHub Wiki

The ERROR statement is used to simulate a program error or to troubleshoot error handling procedures.

ERROR codeNumber%

• Can be used to test an error handling routine by simulating an error.
• Error code 97 can be used to invoke the error handler for your own use, no real error in the program will trigger error 97.
• Use error codes between 100 and 200 for custom program errors that will not be responded to by QB64.

Example: Creating custom error codes for a program that can be handled by an ON ERROR handling routine.

IF...THEN x = 0 THEN ERROR 123
x = x + 1
IF...THEN x THEN ERROR 111

END


handler:
PRINT ERR, _ERRORLINE
BEEP
RESUME NEXT '' ''

Note: Don't use error codes under 97 or over 200 as QB64 may respond to those errors and interrupt the program.

• ON ERROR
• ERR, ERL
• _ERRORLINE
• ERROR Codes (list)