# kio Library API Documentation

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# KImageIO Class Reference

Interface to the KDE Image IO plugin architecture. More...

`#include <kimageio.h>`

List of all members.

## Public Types

enum | Mode { Reading, Writing }

## Static Public Member Functions

static void | registerFormats ()
static bool | canWrite (const QString &type)
static bool | canRead (const QString &type)
static QStringList | types (Mode mode=Writing)
static QString | pattern (Mode mode=Reading)
static QString | suffix (const QString &type)
static QString | typeForMime (const QString &mimeType)
static QString | type (const QString &filename)
static QStringList | mimeTypes (Mode mode=Writing)
static bool | isSupported (const QString &_mimeType, Mode _mode=Writing)
static QString | mimeType (const QString &_filename)

## Detailed Description

Interface to the KDE Image IO plugin architecture.

This library allows KDE applications to read and write images in a variety of formats, transparently via the QImage and QPixmap load and save methods.

The image processing backends are written as image handlers compatible with the QImageIO handler format. The backends are loaded on demand when a particular format is requested. Each format can be identified by a unique type id string.

Formats:

Currently supported formats include:

- BMP <read> <write>
- EPS <read> <write>
- EXR <read>
- G3 <read>
- GIF <read>
- ICO <read>
- JP2 <read> <write>
- JPEG <read> <write>
- NETPBM <read> <write>
- PCX <read> <write>
- PNG <read> <write, only with newer libraries>
- TGA <read> <write>
- TIFF <read>
- XBM <read> <write>
- XPM <read> <write>
- XV <read> <write>

Usage:

Simply call the KImageIO::registerFormats() static method declared in kimageio.h.

Example:

      #include<qpixmap.h>
      #include<kimgio.h>

      int main( int argc, char **argv )
      {
        ....
        KImageIO::registerFormats();
        ...   // start main program
      }

See also:
  KImageIO, QPixmap, QImage, QImageIO

Author:
  Sirtaj Singh Kang

Definition at line 69 of file kimageio.h.

## Member Enumeration Documentation

enum KImageIO::Mode

| Possible image file access modes. Used in various KImageIO static function. Definition at line 77 of file kimageio.h.

## Member Function Documentation

void KImageIO::registerFormats | ( |  | ) | `[static]`

| Registers all KImageIO supported formats. Definition at line 378 of file kimageio.cpp.

bool KImageIO::canWrite | ( | const QString & | type | ) | `[static]`

Checks if a special type is supported for writing.

Parameters:

  | type | the type id of the image type

Returns:
  true if the image format can be written

Definition at line 392 of file kimageio.cpp.

References type().

bool KImageIO::canRead | ( | const QString & | type | ) | `[static]`

Checks if a special type is supported for reading.

Parameters:

  | type | the type id of the image type

Returns:
  true if the image format can be read

Definition at line 411 of file kimageio.cpp.

References type().

QStringList KImageIO::types | ( | Mode | mode = `Writing` | ) | `[static]`

Returns a list of all KImageIO supported formats.

Parameters:

  | mode | Tells whether to retrieve modes that can be read or written.

Returns:
  a list of the type ids

Definition at line 430 of file kimageio.cpp.

References types().

Referenced by types().

QString KImageIO::pattern | ( | Mode | mode = `Reading` | ) | `[static]`

Returns a list of patterns of all KImageIO supported formats.

These patterns can be passed to KFileDialog::getOpenFileName() or KFileDialog::getSaveFileName(), for example.

Parameters:

  | mode | Tells whether to retrieve modes that can be read or written.

Returns:
  a space-separated list of file globs that describe the supported formats

Definition at line 384 of file kimageio.cpp.

QString KImageIO::suffix | ( | const QString & | type | ) | `[static]`

Returns the suffix of an image type.

Parameters:

  | type | the type id of the file format

Returns:
  the suffix of the file format or QString::null if it does not exist

Definition at line 450 of file kimageio.cpp.

References type().

Referenced by type().

QString KImageIO::typeForMime | ( | const QString & | mimeType | ) | `[static]`

Returns the type of a MIME type.

Parameters:

  | mimeType | the MIME type to search

Returns:
  type id of the MIME type or QString::null if the MIME type is not supported

Since:
  3.1

Definition at line 469 of file kimageio.cpp.

References mimeType().

QString KImageIO::type | ( | const QString & | filename | ) | `[static]`

Returns the type of given filename.

Parameters:

  | filename | the filename to check

Returns:
  if the file name's suffix is known the type id of the file type, otherwise QString::null

Definition at line 488 of file kimageio.cpp.

References QString::findRev(), QString::mid(), and suffix().

Referenced by canRead(), canWrite(), and suffix().

QStringList KImageIO::mimeTypes | ( | Mode | mode = `Writing` | ) | `[static]`

Returns a list of MIME types for all KImageIO supported formats.

Parameters:

  | mode | Tells whether to retrieve modes that can be read or written.

Returns:
  a list if MIME types of the supported formats

Definition at line 511 of file kimageio.cpp.

Referenced by KFileDialog::getImageOpenURL().

bool KImageIO::isSupported | ( | const QString & | _mimeType,
|  | Mode | _mode = `Writing`
| ) | `[static]`

Test to see whether a MIME type is supported to reading/writing.

Parameters:

  | _mimeType | the MIME type to check
  | _mode | Tells whether to check for reading or writing capabilities

Returns:
  true if the type is supported

Definition at line 533 of file kimageio.cpp.

QString KImageIO::mimeType | ( | const QString & | _filename | ) | `[static]`

Returns the MIME type of `_filename`.

Parameters:

  | _filename | the filename to check

Returns:
  the MIME type of the file, or QString::null

Definition at line 556 of file kimageio.cpp.

References KMimeType::findByURL().

Referenced by typeForMime().

The documentation for this class was generated from the following files:

- kimageio.h
- kimageio.cpp

This file is part of the documentation for kio Library Version 3.4.1.
Documentation copyright © 1996-2004 the KDE developers.
Generated on Sat Jun 11 20:24:56 2005 by doxygen 1.4.1 written by Dimitri van Heesch, © 1997-2003