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Description
FDType() is used to retrive type of the indicate open file.
Call Signature
string FDType ( int/string filespec )
Return Value
string
For files opened with DBOpen() the type is the three letter short code for the format of the file (eg. TIF for TIFF, or PIX for PCIDSK). Files opened with TextOpen() will return "TXT", and files opened with DKOpen() will return "OTHER".
Argument
int/string filespec:
This can either be the handle returned by DKOpen()/TextOpen()/DBOpen(), or the name of such a file.
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