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;
获得盘符: procedure TForm1.Button1Click(Sender: TObject); var ch:char; temp:string; Hard: array of char; i:integer; begin ch:='c'; i:=1; setlength(Hard,i); while GetDriveType(pchar(string(temp)))<>DRIVE_CDROM do begin Hard[i-1]:=ch; i:=i+1; setlength(Hard,i); ch:=chr(integer(ch)+1); temp:=ch+':\'; Edit1.Text:=Edit1.Text+Hard[i-2]+','; end; end;
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;
procedure TForm1.Button1Click(Sender: TObject);
var
ch:char;
temp:string;
Hard: array of char;
i:integer;
begin
ch:='c';
i:=1;
setlength(Hard,i);
while GetDriveType(pchar(string(temp)))<>DRIVE_CDROM do
begin
Hard[i-1]:=ch;
i:=i+1;
setlength(Hard,i);
ch:=chr(integer(ch)+1);
temp:=ch+':\';
Edit1.Text:=Edit1.Text+Hard[i-2]+',';
end;
end;
uses
SysUtils, Windows;function Get_DiskSerialNo(DriveID : char) : string;
var
VolumeSerialNumber : DWORD;
MaximumComponentLength : DWORD;
FileSystemFlags : DWORD;
begin
result := '';
try
GetVolumeInformation(PChar(DriveID + ':\'),
nil, 0, @VolumeSerialNumber,
MaximumComponentLength, FileSystemFlags,
nil, 0);
result := IntToHex(HiWord(VolumeSerialNumber), 4) +
'-' + IntToHex(LoWord(VolumeSerialNumber), 4);
except
end;
end;