Using Win32 functions in Visual FoxPro Image Gallery
Code examples:
How to display Windows On-Screen Keyboard
How to change display settings: screen resolution, screen refresh rate
Adding and deleting Scheduled Tasks using NetScheduleJob API functions
GDI+: copying to the Clipboard (a) image of active FoxPro window/form, (b) image file
GetFileOwner - Get the owner of an NTFS file
Using Video Capture: displaying on FoxPro form frames and previewing video obtained from a digital camera
Capturing keyboard activity of another application with the Raw Input API (VFP9)
Windows Shell Icons displayed and exported to ICO files (Vista)
Custom GDI+ class
Winsock: sending email messages (SMTP, port 25)
How to register custom Event Log source
How to retrieve information about a cache entry (Internet Explorer)
Mapping and disconnecting network drives
Using EnumPrinters function to enumerate locally installed printers
Enumerating raw input devices attached to the system (keyboard, mouse, human interface device)
How to detect if additional monitor is connected and active
How to convert a bitmap file to monochrome format (1 bpp)
How to create MD-5 and SHA-1 hash values from a string
Custom HttpRequest class (WinHTTP)
Using WM_COPYDATA for interprocess communication (VFP9)
Printing Image File, programmatically set print page orientation to landscape
Displaying icons in the system tray (VFP9)
How to delete all print jobs for a printer
GDI+: reading and writing metadata in JPEG and TIFF files
How to block the ALT+TAB shortcut (WinXP)

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:
Windows XP allows the AltTab to be registered as a hotkey, effectively blocking ALT+TAB and ALT+ESC shortcuts.



See also:
  • How to block the PrintScreen key
  • How to prevent users from accessing the Windows Desktop and from switching to other applications
  • Capturing keyboard activity of another application using the Raw Input API

  •  
      Members area. Log in to view this example.
     
      User name:
      Password:
     
     
      Forgot your password?
     
      Sign up for
    the Membership
     
     


    User rating: 0/10 (0 votes)
    Rate this code sample:
    • ~
    2385 bytes  
    Created: 2004-01-03 13:06:59  
    Modified: 2011-01-06 16:29:17  
    Visits in 7 days: 66  
    Listed functions:
    FindWindow
    GetFocus
    GetLastError
    RegisterHotKey
    ShowWindow
    UnregisterHotKey
    Printer friendly API declarations
    My comment:
    This technique can not be used to block CTRL+ALT+DEL combination of keys.

    See also Microsoft Knowledge Base Article - 161133:
    HOWTO: Block CTRL+ALT+DEL and ALT+TAB in Windows 95 or Windows 98.

    * * *
    I found a discussion on the Expert-Exchange, Interrupt Handler for 0x19 (Ctrl+Alt+Del) in VB6, that you may find interesting.

    Then an article written by Antσnio Feijγo, Lock Windows Desktop seems to answer many if not all questions and even offers some downloads.

    * * *
    Read article Typename, Disabling Keys in Windows XP with TrapKeys by Paul DiLascia.
    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 © 2001-2014 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 (54.197.45.100)
    10.23 min.Example: 'A client for testing non-blocking Winsock server'
    3 day(s)Example: 'Enumerating network interfaces on the local computer'
     
    Function group: 'Dialog Box'
     Function: 'inet_ntoa'
    Function group: 'Windows Sockets 2 (Winsock)'
    6 day(s)Function: 'CeCreateFile'
     Function: 'ReadFile'
    Function group: 'File Management'
     Example: 'Obtaining names of local and global groups for current user (WinNT/XP/2K)'
     Function: 'SQLTables'
     Function: 'CreateWindowEx'
     Function: 'midiOutGetNumDevs'
    Function group: 'Windows Multimedia'
    Google
    Advertise here!