Using Win32 functions in Visual FoxPro Image Gallery
Code examples:
GDI+: copying to the Clipboard (a) image of active FoxPro window/form, (b) image file
GDI+: Storing content of the Clipboard to a bitmap file
GDI+: saving image of FoxPro form to graphics file (BMP, GIF, JPG, PNG, TIF)
How to change display settings: screen resolution, screen refresh rate
Custom GDI+ class
Simple MAPI: how to resolve a name to unique address list entry
Using FoxTray ActiveX control: System Tray Icon and menu attached to VFP form
Capturing keyboard activity of another application with the Raw Input API (VFP9)
How to convert a bitmap file to monochrome format (1 bpp)
Using Video Capture: displaying on FoxPro form frames and previewing video obtained from a digital camera
GDI+: Implementing image scrolling with inertia
Retrieving the name of the primary domain controller (PDC) and join status information
Storing content of the Clipboard to a bitmap file
How to detect if additional monitor is connected and active
GDI+: custom Clock Control
How to change the name and the size of the font in the MessageBox dialog
The SQLGetProp() creates a bridge between Visual FoxPro and the ODBC API
Custom HttpRequest class (WinHTTP)
Copying picture of the active form to the Clipboard using Enhanced Metafile API functions
How to create MD-5 and SHA-1 hash values from a string
Mapping and disconnecting network drives
Winsock: sending email messages (SMTP, port 25)
Custom HttpRequest class (WinINet)
How to put a horizontal text scrolling on the form (a news line, marquee)
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: 44  
    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 (23.22.83.105)
    4 sec.Example: 'GDI+: how to make VFP controls visually shake and shudder'
    Google
    Advertise here!