Get Drive Information

Get Drive Information

RFs can get a TDriveInfo object through the Drive () method, and the Drive information of the Object Description

Definition: TInt Drive (TDriveInfo & anInfo, TInt aDrive = KDefaultDrive) const

Input a TDriveInfo object and an EDriveA ~ Z's image, DriveA ~ Z indicates the drive, if you want to repeat all the drives

You can use

TInt driverNumber = EDriveA; For (; driverNumber <= EDriveZ; driverNumber ++) { Ifs. Drive (di, driverNumber ); If (di. iDriveAtt = KDriveAbsent) Continue; }

TDriveInfo has the iDriveAtt attribute, which indicates the drive property and has the following values:

Location: e32std. h Drive attributes -------------------------------------------------------------------------------- KDriveAttLocal Const TUint KDriveAttLocal Description Drive is local. local driver -------------------------------------------------------------------------------- KDriveAttRom Const TUint KDriveAttRom Description ROM drive. ROM driver -------------------------------------------------------------------------------- KDriveAttRedirected Const TUint KDriveAttRedirected Description Output from a process on one drive redirected to another drive. The process redirects the Output of one driver to another. -------------------------------------------------------------------------------- KDriveAttSubsted Const TUint KDriveAttSubsted Description Drive letter has been substituted (assigned a path). Drive replaced (pointing to a path) -------------------------------------------------------------------------------- KDriveAttInternal Const TUint KDriveAttInternal Description Drive is internal (not removable ). -------------------------------------------------------------------------------- KDriveAttRemovable Const TUint KDriveAttRemovable Description Drive is removable.

Other attributes iMediaAtt, iType, and iBattery can be used to query the sdk.

For more information, see the following code (from the sdk example)

# Include "DriveInfoLx. h" # Include <e32base. h> # Include <e32std. h> # Include <e32cons. h> // Console # Include <f32file. h> // Constants _ Partition (KTextConsoleTitle, "Console "); _ Blank (KTextFailed, "failed, leave code = % d "); _ Keys (KTextPressAnyKey, "[press any key] \ n "); // Global Variables LOCAL_D CConsoleBase * console; // write all messages to this RFs ifs; // Local Functions Void formatDriveInfo (TDes & abuf, TDriveInfo & di ); Void printDriveInfo () { User: LeaveIfError (ifs. Connect ()); TDriveInfo di; TBuf <256> buf; TInt driverNumber = EDriveA; For (; driverNumber <= EDriveZ; driverNumber ++) { Ifs. Drive (di, driverNumber ); If (di. iDriveAtt = KDriveAbsent) Continue; FormatDriveInfo (buf, di ); Buf. Delete (0, buf. Length ()); Console-> Getch (); }   Ifs. Close (); } Void formatDriveInfo (TDes & abuf, TDriveInfo & di) { _ Partition (KFormatString, "iType = % 02x, iDriveAtt = % 02x, iMediaAtt = % 02x \ n "); _ Partition (KBatLow, "Battery low \ n "); _ Partition (KBatgood, "Battery good \ n "); _ Partition (KBatNotsupported, "Battery not supported "); _ Representation (KNotPresent, "No media present \ n "); _ Snapshot (Kfloppy, "Media is floppy disk \ n "); _ Partition (KHard, "Media is hard disk \ n "); _ Weight (KCDROM, "Media is CD-ROM \ n "); _ Queue (KRam, "Media is RAM \ n "); _ Weight (KRom, "Media is ROM \ n "); _ Seek (KFlash, "Media is flash \ n "); _ Metadata (KRemote, "Media is remote \ n "); _ Unknown (KUnknown, "Media is unknown \ n "); _ Attributes (KDriveAtts, "Drive attributes :"); _ Partition (KLocal, "local "); _ Category (KRomDrive, "Rom "); _ Commit (KRedirected, "redirected "); _ Partition (KSubstituted, "substituted "); _ Partition (KInternal, "internal "); _ Removeable (KRemoveable, "removeable "); _ Partition (KDynamic, "dynamic "); _ Partition (KDual, "dual-desity "); _ Partition (KFormattable, "formattable "); _ Partition (KWriteProtected, "write-protected "); _ Partition (KnewLine, "\ n "); _ Attributes (KMediaAtts, "\ nMedia attributes :"); Abuf. AppendFormat (KFormatString, TInt (di. iType), TInt (di. iBattery), TInt (di. iDriveAtt) , TInt (di. iMediaAtt )); Switch (di. iBattery) { Case EBatLow: Abuf. Append (KBatLow ); Break; Case EBatGood: Abuf. Append (KBatgood ); Break; Default: Abuf. Append (KBatNotsupported ); } Switch (di. iType) { Case EMediaNotPresent: Abuf. Append (KNotPresent ); Break; Case EMediaFloppy: Abuf. Append (Kfloppy ); Break; Case EMediaHardDisk: Abuf. Append (KHard ); Break; Case EMediaCdRom: Abuf. Append (KCDROM ); Break; Case EMediaRam: Abuf. Append (KRam ); Break; Case EMediaFlash: Abuf. Append (KFlash ); Break; Case EMediaRom: Abuf. Append (KRom ); Break; Case EMediaRemote: Abuf. Append (KRemote ); Break; Default: Abuf. Append (KUnknown ); }   Abuf. Append (KDriveAtts ); If (di. iDriveAtt & KDriveAttLocal) Abuf. Append (KLocal ); If (di. iDriveAtt & KDriveAttRom) Abuf. Append (KRomDrive ); If (di. iDriveAtt & KDriveAttRedirected) Abuf. Append (KRedirected ); If (di. iDriveAtt & KDriveAttSubsted) Abuf. Append (KSubstituted ); If (di. iDriveAtt & KDriveAttInternal) Abuf. Append (KInternal ); If (di. iDriveAtt & KDriveAttRemovable) Abuf. Append (KRemoveable ); Abuf. Append (KMediaAtts ); If (di. iMediaAtt & KMediaAttVariableSize) Abuf. Append (KDynamic ); If (di. iMediaAtt & KMediaAttDualDensity) Abuf. Append (KDual ); If (di. iMediaAtt & KMediaAttFormattable) Abuf. Append (KFormattable ); If (di. iMediaAtt & KMediaAttWriteProtected) Abuf. Append (KWriteProtected ); Abuf. Append (KnewLine ); Console-> Printf (abuf );   } LOCAL_C void MainL (const TDesC & aArgs) { // // Add your program code here, example code below // // Console-> Write (_ L ("Hello, world! \ N ")); PrintDriveInfo (); Console-> Printf (_ L ("Command line args: \" % S \ "\ n"), & aArgs ); }

 

You can use TVolumeInfo to obtain the total space and remaining space of the Drive, DriveInfo information, and Drive Name. However, you cannot obtain the Drive Name in the code.
VolumeName. I wonder if the simulator is different from the real machine. The following is the test code.

Void viewVolumnInfo () { User: LeaveIfError (ifs. Connect ()); _ Partition (KVInfo, "drive: % S \ nTotal size: % d \ nFree Size: % d \ n "); TVolumeInfo vi; TInt driveNum = EDriveA; For (; driveNum <= EDriveZ; driveNum ++) { TInt error = ifs. Volume (vi, driveNum ); If (error! = KErrNone) { Console-> Printf (KVInfo, & vi. iName, vi. iSize, vi. iFree ); Console-> Getch (); } } Ifs. Close (); }