FreeImage

• Index

Contents

• Functions

Modules

• enums
• fipImage
• fipMemoryIO
• fipMetadataFind
• fipMultiPage
• fipTag
• fipWinImage
• flags
• freeimage

Module fipMetadataFind

Corona wrapper for fipMetadataFind, a metadata iterator.

Usage :

local freeimage = require("plugin.freeimage")
local image
-- ...
local finder = freeimage.NewMetadataFind()
local ok, tag = finder:findFirstMetadata("EXIF_MAIN", image)

if ok then
  repeat
    -- process the tag
    print(tag:getKey())

    ok, tag = finder:findNextMetadata()
  until not ok
end

-- the class can be called again with another metadata model
ok, tag = finder:findFirstMetadata("EXIF_EXIF", image)

if ok then
  repeat
    -- process the tag
    print(tag:getKey())

    ok, tag = finder:findNextMetadata()
  until not ok
end

Functions

fipMetadataFind:findFirstMetadata (model, image)	Provides information about the first instance of a tag that matches the metadata model specified in the model argument.
fipMetadataFind:findNextMetadata ()	Find the next tag, if any, that matches the metadata model argument in a previous call to fipMetadataFind:findFirstMetadata.
fipMetadataFind:isValid ()	Indicates whether the iterator is valid for use.

Functions

fipMetadataFind:findFirstMetadata (model, image)

Provides information about the first instance of a tag that matches the metadata model specified in the model argument.

Parameters:

• model string Metadata model, cf. enums.FREE_IMAGE_MDMODEL.
• image fipImage Input image.

Returns:

1. boolean Find succeeded?
2. fipTag On success, the first tag.

fipMetadataFind:findNextMetadata ()

Find the next tag, if any, that matches the metadata model argument in a previous call to fipMetadataFind:findFirstMetadata.

Returns:

1. boolean Find succeeded?
2. fipTag On success, the next tag.

fipMetadataFind:isValid ()

Indicates whether the iterator is valid for use.

Returns:

boolean Search handle is allocated?