error - ImageMagick Error Routines
DefaultErrorHandler(message,qualifier)
DefaultWarningHandler(message,qualifier)
MagickError(error,message,qualifier)
MagickWarning(warning,message,qualifier)
previous_handler=SetErrorHandler(handler)
previous_handler=SetWarningHandler(handler)
Function DefaultErrorHandler displays an error message and then terminates
the program.
The format of the DefaultErrorHandler routine is:
DefaultErrorHandler(message,qualifier)
A description of each parameter follows:
- o message:
-
Specifies the message to display before terminating the program.
- o qualifier:
-
Specifies any qualifier to the message.
Function DefaultWarningHandler displays a warning message.
The format of the DefaultWarningHandler routine is:
DefaultWarningHandler(message,qualifier)
A description of each parameter follows:
- o message:
-
Specifies the message to display before terminating the program.
- o qualifier:
-
Specifies any qualifier to the message.
Function MagickError calls the error handler routines with an error
message.
The format of the MagickError routine is:
MagickError(error,message,qualifier)
A description of each parameter follows:
- o error:
-
Specifies the numeric error category.
- o message:
-
Specifies the message to display before terminating the program.
- o qualifier:
-
Specifies any qualifier to the message.
Function MagickWarning calls the warning handler routines with an warning
message.
The format of the MagickWarning routine is:
MagickWarning(warning,message,qualifier)
A description of each parameter follows:
- o warning:
-
Specifies the numeric warning category.
- o message:
-
Specifies the message to display before terminating the program.
- o qualifier:
-
Specifies any qualifier to the message.
Function SetErrorHandler sets the error handler to the specified routine
and returns the previous error handler.
The format of the SetErrorHandler routine is:
previous_handler=SetErrorHandler(handler)
A description of each parameter follows:
- o handler:
-
Specifies a pointer to a routine to handle errors.
Function SetWarningHandler sets the warning handler to the specified
routine and returns the previous warning handler.
The format of the SetWarningHandler routine is:
previous_handler=SetWarningHandler(handler)
A description of each parameter follows:
- o handler:
-
Specifies a pointer to a routine to handle warnings.