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phoenix_title wx.JPEGHandler

This is the image handler for the JPEG format.


class_hierarchy Class Hierarchy

Inheritance diagram for class JPEGHandler:

method_summary 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.

api Class API



class wx.JPEGHandler(ImageHandler)

Possible constructors:

JPEGHandler()

This is the image handler for the JPEG format.


Methods



__init__(self)

Default constructor for wx.JPEGHandler.



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


static GetLibraryVersionInfo()

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

Return type: wx.VersionInfo

New in version 2.9.2.



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.



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.