NAME

error - ImageMagick Error Routines


SYNOPSIS

DefaultErrorHandler(message,qualifier)

DefaultWarningHandler(message,qualifier)

MagickError(message,qualifier)

MagickWarning(message,qualifier)

previous_handler=SetErrorHandler(handler)

previous_handler=SetWarningHandler(handler)


FUNCTION DESCRIPTIONS


DefaultErrorHandler

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:

message:
Specifies the message to display before terminating the program.

qualifier:
Specifies any qualifier to the message.


DefaultWarningHandler

Function DefaultWarningHandler displays a warning message.

The format of the DefaultWarningHandler routine is:

        DefaultWarningHandler(message,qualifier)

A description of each parameter follows:

message:
Specifies the message to display before terminating the program.

qualifier:
Specifies any qualifier to the message.


MagickError

Function MagickError calls the error handler routines with an error message.

The format of the MagickError routine is:

        MagickError(message,qualifier)

A description of each parameter follows:

message:
Specifies the message to display before terminating the program.

qualifier:
Specifies any qualifier to the message.


MagickWarning

Function MagickWarning calls the warning handler routines with an warning message.

The format of the MagickWarning routine is:

        MagickWarning(message,qualifier)

A description of each parameter follows:

message:
Specifies the message to display before terminating the program.

qualifier:
Specifies any qualifier to the message.


SetErrorHandler

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:

handler:
Specifies a pointer to a routine to handle errors.


SetWarningHandler

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:

handler:
Specifies a pointer to a routine to handle warnings.