Using Win32 functions in Visual FoxPro Image Gallery
Code examples:
Configuring DEVMODE structure for a printer
Converting characters in a URL into corresponding escape sequences and backwards
Creating a file, then moving it to another destination
Disconnecting USB Mass Storage Device programmatically
Displaying Windows shell folders in TreeView control with Visual FoxPro FLL
Dynamic strings implemented through VFP Custom class
Enumerating ODBC Data Sources available on the local computer
Enumerating print jobs and retrieving information for default printer (JOB_INFO_1 structures)
GDI+: printing image file
GDI+: printing vertical text on VFP reports via generated images (VFP9)
GDI+: Scrolling through large image using the mouse
How to browse and connect to printers on a network (WinNT)
How to create a desktop shortcut (shell link)
How to display the Print property sheet
How to download a file from HTTP server using URL Monikers functions
How to download a file from the FTP server using FtpGetFile
How to find when the application started
How to obtain Content-Type value for a file type from the System Registry
How to position the GETPRINTER() dialog
How to remove FTP directory
How to retrieve the number of objects stored in the Recycle Bin
How to suspend or hibernate your system
Number of clipboard formats available
Obtaining I/O counts for the current process
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: 7  
    Listed functions:
    GetLastError
    GetVolumeInformation
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