- NAME
- SYNOPSIS
- FUNCTION DESCRIPTIONS

- CatchException
- DestroyExceptionInfo
- GetExceptionInfo
- MagickError
- MagickWarning
- SetErrorHandler
- SetExceptionInfo
- SetFatalErrorHandler
- SetWarningHandler
- ThrowException

# NAME

error - ImageMagick Error Methods

# SYNOPSIS

CatchException( const ExceptionInfo *exception );

void DestroyExceptionInfo( ExceptionInfo *exception );

GetExceptionInfo( ExceptionInfo *exception );

void MagickError( const ExceptionType error, const char *reason, const char *description );

void MagickWarning( const ExceptionType warning, const char *reason, const char *description );

ErrorHandler SetErrorHandler( ErrorHandler handler );

SetExceptionInfo( ExceptionInfo *exception, ExceptionType severity );

ErrorHandler SetWarningHandler( ErrorHandler handler );

void ThrowException( ExceptionInfo *exception, const ExceptionType severity, const char *reason, const char *description );

# FUNCTION DESCRIPTIONS

## CatchException

> CatchException() returns if no exceptions is found otherwise it reports the exception as a warning, error, or fatal depending on the severity.

The format of the CatchException method is:

> CatchException ( const ExceptionInfo *exception );

A description of each parameter follows:

o exception:
  The exception info.

## DestroyExceptionInfo

> DestroyExceptionInfo() deallocates memory associated with exception.

The format of the DestroyExceptionInfo method is:

> void DestroyExceptionInfo ( ExceptionInfo *exception );

A description of each parameter follows:

o exception:
  The exception info.

## GetExceptionInfo

> GetExceptionInfo() initializes an exception to default values.

The format of the GetExceptionInfo method is:

> GetExceptionInfo ( ExceptionInfo *exception );

A description of each parameter follows:

o exception:
  The exception info.

## MagickError

Method MagickError calls the error handler methods with an error reason.

The format of the MagickError method is:

> void MagickError ( const ExceptionType error, const char *reason, const char *description );

A description of each parameter follows:

o exception:
  Specifies the numeric error category.

o reason:
  Specifies the reason to display before terminating the program.

o description:
  Specifies any description to the reason.

`MagickFatalError()` calls the fatal error handler methods with an error reason.

The format of the MagickError method is:

        void MagickFatalError(const ExceptionType error,const char *reason,
          const char *description)

A description of each parameter follows:

o exception:
  Specifies the numeric error category.

o reason:
  Specifies the reason to display before terminating the program.

o description:
  Specifies any description to the reason.

## MagickWarning

Method MagickWarning calls the warning handler methods with a warning reason.

The format of the MagickWarning method is:

> void MagickWarning ( const ExceptionType warning, const char *reason, const char *description );

A description of each parameter follows:

o warning:
  The warning severity.

o reason:
  Define the reason for the warning.

o description:
  Describe the warning.

## SetErrorHandler

> SetErrorHandler() sets the error handler to the specified method and returns the previous error handler.

The format of the SetErrorHandler method is:

> ErrorHandler SetErrorHandler ( ErrorHandler handler );

A description of each parameter follows:

o handler:
  The method to handle errors.

## SetExceptionInfo

> SetExceptionInfo() set the exception severity.

The format of the SetExceptionInfo method is:

> SetExceptionInfo ( ExceptionInfo *exception, ExceptionType severity );

A description of each parameter follows:

o exception:
  The exception info.

o severity:
  The exception severity.

## SetFatalErrorHandler

> SetFatalErrorHandler() sets the fatal error handler to the specified method and returns the previous fatal error handler.

The format of the SetErrorHandler method is:

        ErrorHandler SetErrorHandler(ErrorHandler handler)

A description of each parameter follows:

o handler:
  The method to handle errors.

## SetWarningHandler

> SetWarningHandler() sets the warning handler to the specified method and returns the previous warning handler.

The format of the SetWarningHandler method is:

> ErrorHandler SetWarningHandler ( ErrorHandler handler );

A description of each parameter follows:

o handler:
  The method to handle warnings.

## ThrowException

> ThrowException() throws an exception with the specified severity code, reason, and optional description.

The format of the ThrowException method is:

> void ThrowException ( ExceptionInfo *exception, const ExceptionType severity, const char *reason, const char *description );

A description of each parameter follows:

o exception:
  The exception.

o severity:
  Define the severity of the exception.

o reason:
  Define the reason of the exception.

o description:
  Describe the exception.