Using Win32 functions in Visual FoxPro Image Gallery
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Enumerating Volumes and Volume Mounting Points (NTFS)
Basic Volume information

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See also:
  • Displaying the drive type value
  • Setting the volume label
  • Disk in drive A:
  • Obtaining physical parameters for a drive: sectors, clusters, cylinders...
  • #DEFINE FILE_CASE_SENSITIVE_SEARCH 1
    #DEFINE FILE_CASE_PRESERVED_NAMES 2
    #DEFINE FILE_UNICODE_ON_DISK 4
    #DEFINE FILE_PERSISTENT_ACLS 8
    #DEFINE FILE_FILE_COMPRESSION 16
    #DEFINE FILE_VOLUME_IS_COMPRESSED 0x8000
    #DEFINE MAX_PATH 260
    #DEFINE CRLF CHR(13)+CHR(10)
    
        DO declare
        DO GetVolumeInfo WITH "C:\"
    * end of main
    
    PROCEDURE GetVolumeInfo(cRoot As String)
        LOCAL cVolNameBuffer, nVolSerialNo, nMaxCompLen, nFlags, nError
    
        STORE REPLICATE(CHR(0),MAX_PATH) TO;
            cVolNameBuffer, nFilesysNameBuffer
    
        STORE 0 TO nVolSerialNo, nMaxCompLen, nFlags
    
        nResult = GetVolumeInformation(cRoot, @cVolNameBuffer,;
            MAX_PATH, @nVolSerialNo, @nMaxCompLen, @nFlags,;
            @nFilesysNameBuffer, MAX_PATH)
    
        IF nResult = 0
        * 3=ERROR_PATH_NOT_FOUND
        * 21=ERROR_NOT_READY
        * 87=ERROR_INVALID_PARAMETER
            nError = GetLastError()
            = MESSAGEBOX("GetVolumeInformation() call failed: " +;
                TRANSFORM(m.nError), 48, m.cRoot)
            RETURN
        ENDIF
    
        DO LogInfo WITH "Root", m.cRoot
    
        DO LogInfo WITH "File System Name",;
            LEFT(nFilesysNameBuffer, AT(CHR(0),nFilesysNameBuffer)-1)
    
        DO LogInfo WITH "Volume Name",;
            LEFT(cVolNameBuffer, AT(CHR(0),cVolNameBuffer)-1)
    
        DO LogInfo WITH "Volume Serial No.",;
            TRANSFORM(nVolSerialNo, "@0")
    
        DO LogInfo WITH "Max Filename Length", nMaxCompLen
    
        DO LogInfo WITH "File System Flags", TRANSFORM(nFlags, "@0")
    
        DO LogInfo WITH "Case-sensitive file names support",;
            IIF(BITAND(nFlags, FILE_CASE_SENSITIVE_SEARCH)=0, "No", "Yes")
    
        DO LogInfo WITH "The file system preserves the case of file names",;
            IIF(BITAND(nFlags, FILE_CASE_PRESERVED_NAMES)=0, "No", "Yes")
    
        DO LogInfo WITH "Unicode in file names support",;
            IIF(BITAND(nFlags, FILE_UNICODE_ON_DISK)=0, "No", "Yes")
    
        DO LogInfo WITH "ACLs support",;
            IIF(BITAND(nFlags, FILE_PERSISTENT_ACLS)=0, "No", "Yes")
    
        DO LogInfo WITH "File-based compression support",;
            IIF(BITAND(nFlags, FILE_FILE_COMPRESSION)=0, "No", "Yes")
    
        DO LogInfo WITH "The specified volume is a compressed volume",;
            IIF(BITAND(nFlags, FILE_VOLUME_IS_COMPRESSED)=0, "No", "Yes")
    
        IF USED("csResult")
            SELECT csResult
            GO TOP
            BROWSE NORMAL NOWAIT
        ENDIF
    
    PROCEDURE LogInfo(cName, vValue)
        IF NOT USED("csResult")
            CREATE CURSOR csResult (property_name C(50), property_value C(50))
        ENDIF
    
        INSERT INTO csResult (property_name, property_value);
        VALUES (m.cName, TRANSFORM(m.vValue))
    
    PROCEDURE declare
        DECLARE INTEGER GetLastError IN kernel32
    
        DECLARE SHORT GetVolumeInformation IN kernel32;
            STRING lpRootPathName, STRING @lpVolumeNameBuffer,;
            LONG nVolumeNameSize, LONG @lpVolumeSerialNumber,;
            LONG @lpMaximumComponentLength, LONG @lpFlags,;
            STRING @lpFileSystemNameBuffer, LONG nFilesysNameSize
    
    

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    2754 bytes  
    Created: 2001-08-10 12:00:00  
    Modified: 2009-02-16 14:55:10  
    Visits in 7 days: 21  
    Listed functions:
    GetLastError
    GetVolumeInformation
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