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- { Can one one post some code to check this please.}
-
- {--------------------------------------------------------- Share loaded ? ---}
- { BAS VAN GAALEN }
- function share_loaded : boolean; assembler; asm
- mov ax,01000h; int 02fh; xor ah,ah; and al,0ffh; end;
-
- {----------------------------------------------------------------------------}
- { ANDREW EIGUS
- INT 2F - SHARE - INSTALLATION CHECK
- AX = 1000h
- Return: AL = 00h not installed, OK to install
- 01h not installed, not OK to install
- ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
-
- function will return True here and it should not. So this one will work:
- }
-
- Function ShareDetected : boolean; assembler;
- Asm
- MOV AX,1000h
- INT 2Fh
- CMP AL,0FFh
- JE @@1
- MOV AL,False
- JMP @@2
- @@1:
- MOV AL,True
- @@2:
- End; { ShareDetected }
-
- {----------------------------------------------------------------------------}
- {IAN LIN}
-
- const
- noshareinstall=0;
- nosharenoinstall=1;
- shareinstalled=$ff;
-
- function shareloaded:byte;
- assembler; asm
- mov ax,$1000
- int $2f
- end;
-
- INT 2F - SHARE - INSTALLATION CHECK
- AX = 1000h
- Return: AL = 00h not installed, OK to install
- 01h not installed, not OK to install
- FFh installed
- BUGS: values of AL other than 00h put DOS 3.x SHARE into an infinite loop
- (08E9: OR AL,AL
- 08EB: JNZ 08EB) <- the buggy instruction (DOS 3.3)
- values of AL other than described here put PC-DOS 4.00 into the same
- loop (the buggy instructions are the same)
- Notes: supported by OS/2 v1.3+ compatibility box, which always returns AL=FFh
- if DOS 4.01 SHARE was automatically loaded, file sharing is in an
- inactive state (due to the undocumented /NC flag used by the autoload
- code) until this call is made
- DOS 5+ chains to the previous handler if AL <> 00h on entry
- Windows Enhanced mode hooks this call and reports that SHARE is
- installed even when it is not
- SeeAlso: AX=1080h,INT 21/AH=52h
-