Using Win32 functions in Visual FoxPro Image Gallery
Code examples:
Saving local machine ODBC Registry Entries to XML file
Start an executable from VFP application by using the CreateProcess
Adding a background image to VFP report (VFP9, ReportListener)
Class for sound recording
Copying picture of the active form to the Clipboard using Enhanced Metafile API functions
Creating hash values for the list of names
Disabling drawing in the VFP form
Displaying printer-properties Property Sheet for the specified printer
Finding parameters for the region specified
How to enable the SE_SHUTDOWN_NAME privilege for the application
How to initiate System shutdown
How to retrieve network parameters for the local computer (including Host name, Domain name, and DNS Server)
How to retrieve the size of a remote file (FTP)
Obtaining addresses for the adapters on the local computer (Win XP/2003/Vista)
Reading and setting the priority class values for the current process and thread
Semi-transparent Form
Setting the volume label
The DetectAutoProxyUrl function identifies the auto-config script location
The SQLGetProp() creates a bridge between Visual FoxPro and the ODBC API
Using FrameRgn for displaying system colors
Using mailslots to send messages on the network
DiskFreeSpace class
Drawing standard Windows icons
Enumerating ODBC Data Sources available on the local computer
How to enumerate terminal servers within the specified Windows domain

User rating: 0/10 (0 votes)
Rate this code sample:
  • ~
More code examples    Listed functions    Add comment     W32 Constants      Translate this page Printer friendly version of this code sample
Before you begin:
See also:
  • How to enumerate sessions and processes on a specified terminal server

  • DO declare
    
    LOCAL cDomainName, hBuffer, nSvrIndex, nSvrCount, nBufsize,;
        cBuffer, nAddress, cSvrName
    
    STORE 0 TO hBuffer, nSvrCount
    
    * The first parameter is the name of Windows domain to be queried.
    * If this parameter is NULL, the current domain is assumed.
    cDomainName=NULL
    *cDomainName="companydomain"
    
    nResult = WTSEnumerateServers(cDomainName, 0, 1, @hBuffer, @nSvrCount)
    
    IF nResult = 0
    * 1212=invalid domain name/format
        ? "WTSEnumerateServers failed with error:", GetLastError()
        RETURN
    ENDIF
    
    ? "Number of terminal servers within the domain:", nSvrCount
    
    * create VFP string variable and allocate amount of space
    * required to store the array of WTS_SERVER_INFO structures
    * created by WTSEnumerateServers function
    nBufsize = GlobalSize(hBuffer)
    cBuffer = REPLICATE(CHR(0), nBufsize)
    = MemToStr(@cBuffer, hBuffer, nBufsize)
    
    *    The array of WTS_SERVER_INFO structures starts with 
    * N DWORD (4-byte) values, where N is the number 
    * of terminal servers detected.
    *    Each value is the address in memory where a terminal server
    * name is stored.
    *    Each terminal server name ends with zero byte.
    
    * retrieve terminal server names from the array
    FOR nSvrIndex=0 TO nSvrCount-1
        nAddress = buf2dword(SUBSTR(cBuffer, nSvrIndex*4+1, 4))
        cSvrName = SUBSTR(cBuffer, nAddress - hBuffer+1)
        cSvrName = SUBSTR(m.cSvrName, 1, AT(CHR(0),cSvrName)-1)
        ? "["+cSvrName+"]"
    NEXT
    
    * release memory implicitly allocated by the WTSEnumerateServers
    = WTSFreeMemory(hBuffer)
    * end of main
    
    PROCEDURE declare
        DECLARE INTEGER GetLastError IN kernel32
        DECLARE WTSFreeMemory IN Wtsapi32 INTEGER pMemory
        DECLARE INTEGER GlobalSize IN kernel32 INTEGER hMem
    
        DECLARE INTEGER WTSEnumerateServers IN Wtsapi32;
            STRING pDomainName, LONG Reserved, LONG RqVersion,;
            LONG @ppServerInfo, LONG @SICount
    
        DECLARE RtlMoveMemory IN kernel32 As MemToStr; 
            STRING @dst, INTEGER src, INTEGER ByteCount
    
    FUNCTION buf2dword(lcBuffer)
    RETURN Asc(SUBSTR(lcBuffer, 1,1)) + ;
        BitLShift(Asc(SUBSTR(lcBuffer, 2,1)),  8) +;
        BitLShift(Asc(SUBSTR(lcBuffer, 3,1)), 16) +;
        BitLShift(Asc(SUBSTR(lcBuffer, 4,1)), 24)
    
    
    

    User rating: 0/10 (0 votes)
    Rate this code sample:
    • ~
    2157 bytes  
    Created: 2006-12-29 16:20:17  
    Modified: 2006-12-29 16:33:08  
    Visits in 7 days: 22  
    Listed functions:
    GetLastError
    GlobalSize
    WTSEnumerateServers
    WTSFreeMemory
    Printer friendly API declarations
    Word Index links for this example:
    Translate this page:
      Spanish    Portuguese    German    French    Italian  
    FreeTranslation.com offers instant, free translations of text or web pages.
    User Contributed Notes:
    There are no notes on this subject.


    Copyright 2001-2015 News2News, Inc. Before reproducing or distributing any data from this site please ask for an approval from its owner. Unless otherwise specified, this page is for your personal and non-commercial use. The information on this page is presented AS IS, meaning that you may use it at your own risk. Microsoft Visual FoxPro and Windows are trade marks of Microsoft Corp. All other trademarks are the property of their respective owners. 

    Privacy policy
    Credits: PHP (4.4.9), an HTML-embedded scripting language, MySQL (5.5.43), the Open Source standard SQL database, AceHTML Freeware Version 4, freeware HTML Editor of choice.   Hosted by Korax Online Inc.
    Google
    Advertise here!