InitResources
returns file reference number of system resource file
This is called once, when the system is started to set up the
Resource Manager. Applications should NOT use this function.
Returns: an integer; a resource file reference number identifying the system
resource file.
Notes: This sets up three related global variables:
SysResName length-prefixed name of the system resource file
SysMap reference number of the system resource file
Note that it is not necessary to know the reference number of the system
resource file. All functions requiring a file reference number will accept 0
to mean the system file.
Referenced by (2):