Using Win32 functions in Visual FoxPro Image Gallery
Code examples:
Using the IsWindowEnabled function
Winsock: initializing the service in the VFP application
Closing Windows
Obtaining Shell32.dll version
Retrieving the names of all sections in an initialization file
Time in milliseconds represented as string (e.g. 1 hour 24 min 36 sec)
Using the CopyFile
Pocket PC: retrieving data from the Contacts Database
Retrieving IP statistics for the computer
Setting the Window Region for a form
Retrieving the name and type of all available RAS-capable devices
Retrieving various system metrics
Retrieving window and menu help context identifiers
Testing Transparent Menu Class with top-level form (requires VFP9)
Converting characters in a URL into corresponding escape sequences and backwards
Creating a file, then moving it to another destination
Reading keys in the specified section of the Win.ini file
Setting and retrieving the double-click time for the mouse
CryptoAPI: retrieving list of providers
Retrieving information about MS-DOS device names using QueryDosDevice (WinNT only)
Using the SetErrorMode for determining if a floppy drive is ready
Extended OS Version info
Retrieving list of supported paper names (for example, Letter or Legal) for a given printer
Printf-style formatted text output in VFP
Reading keys in the specified section of the Win.ini file

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Before you begin:
Determine that Simple MAPI is available by checking the [MAIL] section in the computer"s WIN.INI file for the MAPI entry. This entry will have a value of 1 if Simple MAPI is installed, or 0 if uninstalled:



*lcSection = "Windows"  && section name
lcSection = "Mail"  && section name

lcKeys = getKeysString (lcSection)

CREATE CURSOR csWinIni (keyname C(30), keyvalue C(200))

lcKey = ""
FOR ii=1 TO Len(lcKeys)
    ch = SUBSTR (lcKeys, ii,1)
    IF ch = Chr(0)
        lcValue = GetKeyValue(lcSection, lcKey)
        INSERT INTO csWinIni VALUES (lcKey, lcValue)
        lcKey = ""
    ELSE
        lcKey = lcKey + ch
    ENDIF
ENDFOR

SELECT csWinIni
GO TOP
BROW NORMAL NOWAIT

FUNCTION  getKeysString (lcSection)
* returns all key names found in this section
* delimited with zero character

    * Notice that lpKeyName declared as INTEGER 
    * to emulate an empty key name

    DECLARE INTEGER GetProfileString IN kernel32;
        STRING   lpAppName,;
        INTEGER  lpKeyName,;
        STRING   lpDefault,;
        STRING @ lpReturnedString,;
        INTEGER  nSize

    nSize = 1024
    lpReturnedString = Repli (Chr(0), nSize)

    lnResult = GetProfileString (lcSection, 0, "#empty#",;
        @lpReturnedString, nSize)
RETURN  Left(lpReturnedString, lnResult)

FUNCTION  GetKeyValue (lcSection, lcKey)

    * Notice that lpKeyName declared as STRING
    * because here we have a string value
    * supplied to this procedure

    DECLARE INTEGER GetProfileString IN kernel32;
        STRING   lpAppName,;
        STRING   lpKeyName,;
        STRING   lpDefault,;
        STRING @ lpReturnedString,;
        INTEGER  nSize

    nSize = 4096
    lpReturnedString = Repli (Chr(0), nSize)

    lnResult = GetProfileString (lcSection, lcKey, "#empty#",;
        @lpReturnedString, nSize)
RETURN  Left(lpReturnedString, lnResult)


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1546 bytes  
Created: 2001-09-04 12:00:00  
Modified: 2002-12-30 17:38:51  
Visits in 7 days: 39  
Listed functions:
GetProfileString
Printer friendly API declarations
My comment:
A section in the Win.ini file must have the following form:
[section]
key=string


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