====== hfzRead ======

===== Description =====

Read bytes from a HF2/HFZ file.

===== Function prototype =====
<code>
long hfzRead(hfzFile* fs, void* pData, int len);
</code>

===== Arguments =====
^ Name ^ Type ^ Description ^
| fs | hfzFile* | A handle to an open hfzFile struct (see [[#hfzOpen]]).  |
| pData | void* | A handle to the memory block into which data will be read. |
| len | long | The number of bytes to be read. |



===== Return value =====

The number of bytes read (if positive), or else an error code (if negative). Use [[libhfz:functions:hfzGetErrorStr]] to retrieve the error description. 

===== Comments =====
None.