[Overview][Constants][Types][Classes][Procedures and functions][Variables][Index] | Reference for unit 'Graphics' (#lcl)

# TFPImageBitmap

[Properties (by Name)] [Methods (by Name)] [Events (by Name)]

A class of Bitmap using the FPImage reader and writer (ie customised for FreePascal)

## Declaration

Source position: graphics.pp line 1420

`type TFPImageBitmap = class(TCustomBitmap)`
`protected`
`function GetMimeType; override;` |  | GetMimeType - returns the MIME type of the Graphic
`protected`
`class function GetReaderClass; virtual; abstract;` |  | GetReaderClass - returns the class of reader for acquiring data from a stream
`class function GetWriterClass; virtual; abstract;` |  | GetWriterClass - returns the class of writer for storing data to a stream
`protected`
`procedure InitializeReader(); virtual;` |  | InitializeReader - starts up the specified reader to read th especified Image
`procedure InitializeWriter(); virtual;` |  | InitializeWriter - starts up the specified writer to store the specified Image
`procedure FinalizeReader(); virtual;` |  | FinalizeReader - ends the Image reading process
`procedure FinalizeWriter(); virtual;` |  | FinalizeWriter - ends the Image writing process
`procedure ReadStream(); override;` |  | Read the data from a Stream
`procedure WriteStream(); override;` |  | Write the data to a stream
`protected`
`class function GetFileExtensions; override;` |  | GetFileExtensions - returns a list of the file extensions available
`class function IsStreamFormatSupported(); override;`
`class function IsFileExtensionSupported();` |  | IsFileExtensionSupported - returns True if the given file extension is supported?
`public`
`function LazarusResourceTypeValid(); override;` |  | Check that the Resource specified for reading or writing is a valid type - result True if it is
`end;`

## Inheritance

`TFPImageBitmap` |  | A class of Bitmap using the FPImage reader and writer (ie customised for FreePascal)
`TCustomBitmap` |  | TCustomBitMap - the base class for TBitmap
`TRasterImage` |  | TRasterImage - base class for a number of graphic controls, including TCustomBitmap and TCustomIcon, which use a raster of dots to display graphic information
`TGraphic` |  | TGraphic - Base class for dealing with Graphic images
`TPersistent`
`TObject`

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