Using Win32 functions in Visual FoxPro Image Gallery
Code examples:
How to change display settings: screen resolution, screen refresh rate
Capturing keyboard activity of another application with the Raw Input API (VFP9)
Converting Unicode data from the Clipboard to a character string using a given code page
Copying picture of the active form to the Clipboard using Enhanced Metafile API functions
Enumerating data formats currently available on the clipboard
Enumerating raw input devices attached to the system (keyboard, mouse, human interface device)
Obtaining current Internet Explorer browser version and UserAgent
How to print FoxPro form
GDI+: copying to the Clipboard (a) image of active FoxPro window/form, (b) image file
Creating a clipping region from the path selected into the device context of a form
FindText -- the hopeless and useless Common Dialog
How to create transparent areas inside a form -- punching holes in the form
Disabling mouse and keyboard input for the main VFP window (with the app still running)
Using EnumPrinters function to enumerate locally installed printers
Using the Semaphore object to allow only one instance of VFP application running
Reading VFP settings from the Windows Registry
Enumerating Processes -- WinNT
Retrieving graphic capabilities of default printer
Current keyboard type
Storing content of the Clipboard to a bitmap file
How to save registry key including its subkeys and values to a file
Placing a button on the VFP form as a new child window
Changing file attributes
Using the DeleteFile
How to block the ALT+TAB shortcut (WinXP)

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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

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    User rating: 0/10 (0 votes)
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    2385 bytes  
    Created: 2004-01-03 13:06:59  
    Modified: 2011-01-06 16:29:17  
    Visits in 7 days: 116  
    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.
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