Int 62 Fn 0073  u - Fgdriver V3.03 - "fg_pcxhead" - Get PCx File Header    [V]

   AX = 0073h
   ES:BX -> variable pointer record (see below)

Return: AX = status
       0000h successful
       FFFEh not a PCX file
       FFFFh file does not exist

Note:  For FGDRIVER v1.10, this function was "FG_SETNUM" (see AX=0094h);
      "FG_PCXHEAD" did not exist yet

See Also: AX=0074h,AX=009Ah

Format of variable pointer record:
Offset Size    Description
 00h   WORD    segment of ASCIZ filename
 02h   WORD    offset of ASCIZ filename
 04h   WORD    segment of 128-byte buffer for PCX header
 06h   WORD    offset of 128-byte buffer for PCX header