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 Functions | 
| char * | qfits_query_hdr (const char *filename, const char *keyword) | 
|  | Retrieve the value of a key in a FITS header. 
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| char * | qfits_query_ext (const char *filename, const char *keyword, int xtnum) | 
|  | Retrieve the value of a keyin a FITS extension header. 
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| int | qfits_query_n_ext (const char *filename) | 
|  | Counts the number of extensions in a FITS file. 
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| int | qfits_query_nplanes (const char *filename, int extnum) | 
|  | Counts the number of planes in a FITS extension. 
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| char * | qfits_pretty_string (const char *s) | 
|  | Clean out a FITS string value. 
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| int | qfits_is_boolean (const char *s) | 
|  | Identify if a FITS value is boolean. 
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| int | qfits_is_int (const char *s) | 
|  | Identify if a FITS value is an int. 
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| int | qfits_is_float (const char *s) | 
|  | Identify if a FITS value is float. 
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| int | qfits_is_complex (const char *s) | 
|  | Identify if a FITS value is complex. 
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| int | qfits_is_string (const char *s) | 
|  | Identify if a FITS value is string. 
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| int | qfits_get_type (const char *s) | 
|  | Identify the type of a FITS value given as a string. 
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| char * | qfits_query_card (const char *filename, const char *keyword) | 
|  | Query a card in a FITS (main) header by a given key. 
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| int | qfits_replace_card (const char *filename, const char *keyword, const char *substitute) | 
|  | Replace a card in a FITS (main) header by a given card. 
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| const char * | qfits_version (void) | 
|  | Return the current QFITS version. 
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