Using Win32 functions in Visual FoxPro Image Gallery
Code examples:
Setting and retrieving the double-click time for the mouse
How to create a service object
Searching for the specified file using the SearchPath
Creating a file, then moving it to another destination
Retrieving a handle to DLL and address of an exported function in it
Who owns the Windows Clipboard
Changing system colors
How to perform Base64 encoding/decoding using Cryptography API Functions
Open and close a Simple MAPI Session
Retrieving window and menu help context identifiers
Setting the last-error code for the FoxPro
Testing Transparent Menu Class with top-level form (requires VFP9)
Converting strings between ANSI and OEM
Enumerating forms supported by a specified printer
Hiding mouse cursor
How to play a waveform sound (a WAV file in particular)
Joining local computer to a domain (XP/2000)
Retrieving default spooling directory name
Retrieving information about MS-DOS device names using QueryDosDevice (WinNT only)
Using Multimedia Command Strings to play MIDI files
Using SQLBrowseConnect to connect to a data source through a number of iterative calls (SQL Server)
Creating ESE database and table
Finding the application, icon and friendly names associated with a file name
Obtaining window class name for the main VFP window
How to delete a service object

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Before you begin:
This code sample shows how to delete the service object created in How to create a service object code sample.

See also:
  • Encapsulating access to the Windows Services in a class
    DO declare
    DO DeleteWinService WITH "FriendlyService"
    FUNCTION DeleteWinService(cServiceName)
        LOCAL hManager, hService
        hManager = OpenSCManager(NULL, NULL, SC_MANAGER_ALL_ACCESS)
        IF m.hManager = 0
            ? "Call to OpenSCManager failed."
            RETURN .F.
        hService = OpenService(hManager, m.cServiceName,;
        IF hService = 0
            ? "Failed to obtain the handle to the service."
            * stop service if it is running
            LOCAL cStatusInfo
            cStatusInfo = REPLICATE(CHR(0), SERVICE_STATUS_SIZE)
            = ControlService(m.hService, SERVICE_CONTROL_STOP, @cStatusInfo)
            IF DeleteService(m.hService) = 0
                ? "DeleteService failed with error code", GetLastError()
            = CloseServiceHandle(m.hService)
        = CloseServiceHandle(m.hManager)
    * end of main
    PROCEDURE declare
        DECLARE INTEGER GetLastError IN kernel32
        DECLARE INTEGER CloseServiceHandle IN advapi32 INTEGER hSCObject
        DECLARE INTEGER OpenSCManager IN advapi32;
            STRING lpMachineName, STRING lpDatabaseName,;
            LONG dwDesiredAccess
        DECLARE INTEGER OpenService IN advapi32;
            INTEGER hSCManager, STRING lpServiceName,;
            LONG dwDesiredAccess
        DECLARE INTEGER DeleteService IN advapi32 INTEGER hService
        DECLARE INTEGER ControlService IN advapi32;
            INTEGER hService, LONG dwControl,;
            STRING @lpServiceStatus

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    1536 bytes  
    Created: 2006-09-30 13:56:37  
    Modified: 2006-09-30 13:59:02  
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