Using Win32 functions in Visual FoxPro Image Gallery
Code examples:
Generating sequential UUID values
How to fill a buffer with random bytes using Cryptography API Functions
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Testing Transparent Menu Class with top-level form (requires VFP9)
Using the high-resolution performance counter
Enumerating Windows Sound Schemes avaialble to the current user
GDI+: custom control, base class
Retrieving national language settings
Setting default printer
Using the CopyFile
Basic Volume information
Obtaining window class name for the main VFP window
Retrieving default spooling directory name
Retrieving the name of the network resource associated with a local device
Searching for the specified file using the SearchPath
Using Multimedia Command Strings to play MIDI files
Using LoadLibrary
How to delete a service object
Joining local computer to a domain (XP/2000)
Listing device drivers in the system: load addresses, names
Retrieving a handle to DLL and address of an exported function in it
Retrieving current user for the process
Using Video Capture: enumerating installed capture drivers
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  
    Visits in 7 days: 12  
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