Fórum Impressora off-line #255753

IF not PrinterOnline() THEN
begin
  MsgBox(´Verifique a Impressora!´,´ATENÇÃO´);
end;

Function PrinterOnLine : Boolean;
Const
PrnStInt : Byte = $17;
StRq : Byte = $02;
PrnNum : Word = 0; { 0 para LPT1, 1 para LPT2, etc. }
Var
nResult : byte;
Begin (* PrinterOnLine*)
  Asm
    mov ah,StRq;
    mov dx,PrnNum;
    Int $17;
    mov nResult,ah;
  end;  
  PrinterOnLine := (nResult and $80) = $80;
End;