Using Win32 functions in Visual FoxPro Image Gallery
Code examples:
Enumerating forms supported by a specified printer
GDI+: converting image file to another graphics format
GDI+: loading image file, drawing on it, saving the result to another file
Retrieving a universal form for the drive-based path for a network resource
Retrieving country-specific dialing information from the Windows Telephony list of countries
Retrieving the priority class for the current process
Retrieving window and menu help context identifiers
Basic Volume information
Obtaining physical parameters for a drive: sectors, clusters, cylinders...
Testing Transparent Menu Class with top-level form (requires VFP9)
An alternative way of setting Form.Closable to False
Setting the Window Region for a form
URL: converting unsafe characters and spaces into escape sequences
How to intercept window messages sent to VFP form
Printing text on the client area of the main VFP window
Enumerating Windows Sound Schemes avaialble to the current user
Finding the application, icon and friendly names associated with a file name
Generating sequential UUID values
Accessing the list of Windows Recent Documents
Converting path to original case
Enumerating Performance Counters
How to get the path to a Special Folder
Retrieving the name of the network resource associated with a local device
Using FillMemory
Reading keys in the specified section of the Win.ini file

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:
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 = ""
        lcKey = lcKey + ch


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)

User rating: 0/10 (0 votes)
Rate this code sample:
  • ~
1546 bytes  
Created: 2001-09-04 12:00:00  
Modified: 2002-12-30 17:38:51  
Visits in 7 days: 45  
Listed functions:
Printer friendly API declarations
My comment:
A section in the Win.ini file must have the following form:

Word Index links for this example:
Translate this page:
  Spanish    Portuguese    German    French    Italian offers instant, free translations of text or web pages.
User Contributed Notes:
There are no notes on this subject.

Copyright 2001-2014 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 (5.1.68), the Open Source standard SQL database, AceHTML Freeware Version 4, freeware HTML Editor of choice.   Hosted by Korax Online Inc.
Last Topics Visited (
43 sec.Function: 'JetEndSession'
1.67 min.Function: 'GetDlgItem'
Function group: 'Dialog Box'
3.4 min.
Function group: 'Service'
5 day(s)Function: 'timeGetDevCaps'
Function group: 'Windows Multimedia'
 Function: 'HeapFree'
 Example: 'How to empty the Recycle Bin'
 Example: 'Class for sound recording'
8 day(s)Function: 'waveOutSetVolume'
 Function: 'CryptDestroyKey'
Function group: 'Cryptography Reference'
 Example: 'How to retrieve the number of print jobs queued for the printer'
Advertise here!