Quick Reference > Data Types > Structures Used with Input and Output Functions > EXTENSIONLIST

EXTENSIONLIST

typedef struct _tagEXTENSIONLIST 
{ 
   L_UINT uStructSize; 
   L_UINT uFlags; 
   L_UINT uCount; 
   LTEXTENSION aList[1]; 
} EXTENSIONLIST, *pEXTENSIONLIST;

The EXTENSIONLIST structure contains Exif extension information.

Member	Description
uStructSize	Size of the whole extension list.
uFlags	Flags that indicate the type of data contained in the extensions. Possible values are:
	Value	Meaning
	EXTENSION_STAMP	[0x0001] A stamp is present. Most likely suitable for LCD displays (and bigger than the stamp stored in the Exif data). The stamp can be loaded with L_LoadExtensionStamp. Note that this stamp is independent of the regular stamp present in Exif files. Some Exif files have two stamps. The regular stamp is loaded with L_ReadFileStamp, while the extension stamp is loaded with L_LoadExtensionStamp.
	EXTENSION_AUDIO	[0x0002] Embedded audio data is present. The L_GetExtensionAudio function can be called to get to the audio data.
uCount	The number of extensions present in aList.
aList	Array of EXTENSION structures that contain the extension information. For more information about the information these contain, refer to the EXTENSION structure.