Tag of the element of be found Purpose Returns the text description of the specified tag. Return value Returns a pointer to the description text if successful and NULL otherwise. Name of the tag to be found Purpose Returns the tag number corresponding to the text description of a tag. Tag of the data element to be found Purpose Returns the name of the specified tag. Return value Returns a pointer to the name if successful or NULL otherwise.
Description Also checks for special elements.
Number of blocks Purpose Returns information about the specified linked-block element. Description Hinqblockinfo operates in a manner similar to HDinquire but provides more low-level information than HLPinquire . NULL can be passed for any non-essential entries. Minimum number of bytes to allocate for the memory block Purpose Dynamicly allocates a block of memory and returns a pointer to it. A pointer to the allocated memory block if successful, NULL otherwise.