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
How to change display settings: screen resolution, screen refresh rate
GDI+: Storing content of the Clipboard to a bitmap file
Capturing keyboard activity of another application with the Raw Input API (VFP9)
Custom GDI+ class
Printing Image File, programmatically set print page orientation to landscape
How to convert a bitmap file to monochrome format (1 bpp)
How to print FoxPro form
HOWTO: Use the Win32 API to Access File Dates and Times
Winsock: sending email messages (SMTP, port 25)
Using WM_COPYDATA for interprocess communication (VFP9)
How to print a bitmap file
Custom HttpRequest class (WinHTTP)
How to put a horizontal text scrolling on the form (a news line, marquee)
Using FoxTray ActiveX control: System Tray Icon and menu attached to VFP form
Mapping and disconnecting network drives
Using EnumPrinters function to enumerate locally installed printers
Windows Shell Icons displayed and exported to ICO files (Vista)
Using Video Capture: displaying on FoxPro form frames and previewing video obtained from a digital camera
Custom FTP Class for Visual FoxPro application
How to set Creation Date/Time for a folder (WinNT)
Custom HttpRequest class (WinINet)
Placing On-screen Alert on top of all windows
Detecting changes in connections to removable drives (VFP9)
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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    2385 bytes  
    Created: 2004-01-03 13:06:59  
    Modified: 2011-01-06 16:29:17  
    Visits in 7 days: 65  
    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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