看看,参考 type MIDPtr = ^MIDRec; MIDRec = Record InfoLevel: word; SerialNum: LongInt; VolLabel: Packed Array [0..10] of Char; FileSysType: Packed Array [0..7] of Char; end;function GetDriveSerialNum(MID: MIDPtr; drive: Word): Boolean; assembler; asm push DS { Just for safety, I dont think its really needed } mov ax,440Dh { Function Get Media ID } mov bx,drive { drive no (0-Default, 1-A ...) } mov cx,0866h { category and minor code } lds dx,MID { Load pointeraddr. } call DOS3Call { Supposed to be faster than INT 21H } jc @@err mov al,1 { No carry so return TRUE } jmp @@ok @@err: mov al,0 { Carry set so return FALSE } @@ok: pop DS { Restore DS, were not supposed to change it } end;procedure TForm1.NrBtnClick(Sender: TObject); var Info: MIDRec; begin Info.InfoLevel:=0; { Information Level } If GetDriveSerialNum(@Info,0) then { Do something with it... } ListBox.Items.Add(IntToStr(Info.SerialNum)+' '+Info.VolLabel); end;
我也在做兄弟结帐吧procedure TForm1.Button1Click(Sender: TObject); var a,b:dword; serialNum:Dword; begin GetVolumeInformation('D:\',nil,0,@SerialNum, a, b, nil, 0); Edit1.Text:=inttohex(SerialNum,8); end;
type
MIDPtr = ^MIDRec;
MIDRec = Record
InfoLevel: word;
SerialNum: LongInt;
VolLabel: Packed Array [0..10] of Char;
FileSysType: Packed Array [0..7] of Char;
end;function GetDriveSerialNum(MID: MIDPtr; drive: Word): Boolean; assembler;
asm
push DS { Just for safety, I dont think its really needed }
mov ax,440Dh { Function Get Media ID }
mov bx,drive { drive no (0-Default, 1-A ...) }
mov cx,0866h { category and minor code }
lds dx,MID { Load pointeraddr. }
call DOS3Call { Supposed to be faster than INT 21H }
jc @@err
mov al,1 { No carry so return TRUE }
jmp @@ok
@@err:
mov al,0 { Carry set so return FALSE }
@@ok:
pop DS { Restore DS, were not supposed to change it }
end;procedure TForm1.NrBtnClick(Sender: TObject);
var
Info: MIDRec;
begin
Info.InfoLevel:=0; { Information Level }
If GetDriveSerialNum(@Info,0) then { Do something with it... }
ListBox.Items.Add(IntToStr(Info.SerialNum)+' '+Info.VolLabel);
end;
var
a,b:dword;
serialNum:Dword;
begin
GetVolumeInformation('D:\',nil,0,@SerialNum, a, b, nil, 0);
Edit1.Text:=inttohex(SerialNum,8);
end;