FF_Seek()
From FullFAT
Seeks the filepointer to the specified position in the file.
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Prototype
FF_ERROR FF_Seek(FF_FILE *pFile, FF_T_SINT32 Offset, FF_T_INT8 Origin);
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Parameters
pFile
FF_FILE object from the FF_Open() function.
Offset
Offset from Origin in the file in bytes. This can be both a positive and negative number.
Origin
Possible values are: FF_SEEK_SET - Offset is from the beginning of the file. FF_SEEK_CUR - Offset is from the current position. FF_SEEK_END - Offset if from the end of the file.
Return Value
Return FF_ERR_NONE on success. Returns FF_ERR_NULL_POINTER if pFile was NULL. Returns -3 if the seek results in an invalid position. Returns -4 if Origin is invalid.
Example
#include "fullfat.h" FF_Seek(pFile, 100, FF_SEEK_SET); // Seek to 100th byte of the file. FF_Seek(pFile, -100, FF_SEEK_END); // Seek to 100th byte from the end of the file. // etc etc
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