wx.JPEGHandler

This is the image handler for the JPEG format.

See also

wx.Image, wx.ImageHandler, wx.InitAllImageHandlers

Class Hierarchy

Inheritance diagram for class JPEGHandler:

Methods Summary

__init__	Default constructor for wx.JPEGHandler.
DoCanRead	Called to test if this handler can read an image from the given stream.
GetLibraryVersionInfo	Retrieve the version information about the JPEG library used by this handler.
LoadFile	Loads a image from a stream, putting the resulting data into image.
SaveFile	Saves a image in the output stream.

Class API

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class wx.JPEGHandler(ImageHandler)

Possible constructors:

JPEGHandler()

This is the image handler for the JPEG format.

Methods

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__init__(self)

Default constructor for wx.JPEGHandler.

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DoCanRead(self, stream)

Called to test if this handler can read an image from the given stream.

NOTE: this function is allowed to change the current stream position since CallDoCanRead() will take care of restoring it later

Parameters:stream (wx.InputStream) – Return type:bool

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static GetLibraryVersionInfo()

Retrieve the version information about the JPEG library used by this handler.

Return type: wx.VersionInfo

New in version 2.9.2.

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LoadFile(self, image, stream, verbose=True, index=-1)

Loads a image from a stream, putting the resulting data into image.

If the image file contains more than one image and the image handler is capable of retrieving these individually, index indicates which image to read from the stream.

Parameters:

• image (wx.Image) – The image object which is to be affected by this operation.
• stream (wx.InputStream) – Opened input stream for reading image data.
• verbose (bool) – If set to True, errors reported by the image handler will produce LogMessages.
• index (int) – The index of the image in the file (starting from zero).

Return type:

bool

Returns:

True if the operation succeeded, False otherwise.

See also

wx.Image.LoadFile , wx.Image.SaveFile , SaveFile

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SaveFile(self, image, stream, verbose=True)

Saves a image in the output stream.

Parameters:

• image (wx.Image) – The image object which is to be affected by this operation.
• stream (wx.OutputStream) – Opened output stream for writing the data.
• verbose (bool) – If set to True, errors reported by the image handler will produce LogMessages.

Return type:

bool

Returns:

True if the operation succeeded, False otherwise.

See also

wx.Image.LoadFile , wx.Image.SaveFile , LoadFile