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[sir.dev.a.lot]

[TRUCO DELPHI] Encontrar el primer CD-DRIVE Disponible.

delphi

function FindFirstCDROMDrive: Char;
Var
  DriveMap: DWORD;
  Mask    : DWORD;
  i       : Integer;
  Root    : String;
begin
  Result := #0;
  Root := 'A:\';
  DriveMap := GetLogicalDrives;
  Mask := 1;
  For i := 1 To 32 Do
  begin
    If (Mask And DriveMap) <> 0 Then
      If GetDriveType(PChar(Root)) = DRIVE_CDROM Then
      begin
        Result := Root[1];
        Break;
      end;
    Mask := Mask Shl 1;
    Inc(Root[1]);
  end;
end;

Saludos!