Difference between revisions of "EXIF"
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::Pointer to a [[Structures#GFL_BITMAP|GFL_BITMAP]] structure. | ::Pointer to a [[Structures#GFL_BITMAP|GFL_BITMAP]] structure. | ||
:flags | :flags | ||
:: | ::{| | ||
|GFL_EXIF_WANT_MAKERNOTES||0x0001 | |||
|} | |||
'''Return value''' | '''Return value''' | ||
| Line 40: | Line 42: | ||
'''See also''' | '''See also''' | ||
:[[#gflBitmapHasEXIF|gflBitmapHasEXIF]], [[#gflFreeEXIF|gflFreeEXIF]] | :[[#gflBitmapHasEXIF|gflBitmapHasEXIF]], [[#gflFreeEXIF|gflFreeEXIF]] | ||
== gflFreeEXIF == | == gflFreeEXIF == | ||
Revision as of 15:46, 23 September 2009
gflBitmapHasEXIF
The gflBitmapHasEXIF function is used to know if the picture has EXIF metadata.
GFL_BOOL gflBitmapHasEXIF( const GFL_BITMAP* bitmap );
Parameters
- bitmap
- Pointer to a GFL_BITMAP structure.
Return value
- The function returns GFL_TRUE if the bitmap has EXIF metadata.
See also
- gflBitmapHasIPTC, gflBitmapGetEXIF, gflFreeEXIF, gflBitmapRemoveEXIFThumbnail, gflBitmapRemoveMetaData
gflBitmapGetEXIF
The gflBitmapGetEXIF function returns EXIF metadata in a readable form.
GFL_EXIF_DATA* gflBitmapGetEXIF( const GFL_BITMAP* bitmap, GFL_UINT32 flags );
Parameters
- bitmap
- Pointer to a GFL_BITMAP structure.
- flags
GFL_EXIF_WANT_MAKERNOTES 0x0001
Return value
- The function returns a pointer to a GFL_EXIF_DATA structure.
See also
gflFreeEXIF
The gflFreeEXIF function frees memory allocated by gflBitmapGetEXIF function.
void gflFreeEXIF( GFL_EXIF_DATA* exif_data );
Parameters
- exif_data
- Pointer to a GFL_EXIF_DATA structure.
See also
gflBitmapGetEXIFValue
The gflBitmapGetEXIFValue allow to get a tag from EXIF metadata.
GFL_ERROR gflBitmapGetEXIFValue( const GFL_BITMAP* bitmap, GFL_UINT32 tag, char* value, GFL_INT32 value_length );
Parameters
- bitmap
- Pointer to a GFL_BITMAP structure
- tag
- EXIF tag
- value
- Pointer to a char array (string)
- value_length
- Maximum length of the string
Return value
- The function returns GFL_NO_ERROR if it is successful or a value of GFL_ERROR.
See also
gflBitmapRemoveEXIFThumbnail
The gflBitmapRemoveEXIFThumbnail function remove thumbnail from EXIF metadata.
GFL_ERROR gflBitmapRemoveEXIFThumbnail( GFL_BITMAP* bitmap );
Parameters
- bitmap
- Pointer to a GFL_BITMAP structure.
See also